- Cosa, Genus Cosa H.J. Finlay, 1926 (PHILOBRYIDAE)
- cosanguineum, Phylloceras cosanguineum (C. Gemmellaro, 1876 †) - (PHYLLOCERATIDAE) (FOSSIL)
- Coscaites, Genus Coscaites Guex & al., 2005 (USSURITIDAE) (FOSSIL)
- coseli, Anachis coseli J.M. Díaz & Mittnacht, 1991 - (COLUMBELLIDAE)
- coseli, Africanella coseli (R. Houart, 1989) - (MURICIDAE)
- coseli, Gigantidas coseli Saether, C. Little & al., 2010 † - (MYTILIDAE) (FOSSIL)
- coseli, Periploma coseli N.E. Ardila & J.M. Díaz, 1998 - syn of: Periploma orbiculare R.J.L. Guppy, 1882 - (PERIPLOMATIDAE)
- coseli, Ensis megistus coseli J. Vierna, 2014 - (PHARIDAE)
- coseli, Megastomia coseli A. Peñas & E. Rolán, 1999 - (PYRAMIDELLIDAE)
- coseli, Turbonilla coseli A. Peñas & E. Rolán, 2002 - (PYRAMIDELLIDAE)
- coseli, Phymorhynchus coseli A. Warén & P. Bouchet, 2009 - (RAPHITOMIDAE)
- coseli, Alvania coseli S. Gofas, 1999 - (RISSOIDAE)
- coseli, Oudardia coseli M. Huber, A. Langleit & K. Kreipl, 2015 - (TELLINIDAE)
- coselia, Poumea coselia E.A. Glover & Taylor, 2007 - (LUCINIDAE)
- cosensis, Bythinella cosensis H. Schütt, 1980 - (BYTHINELLIDAE)
- cosensis, Zebrina cosensis (L.A. Reeve, 1849) - (ENIDAE)
- cosensis, Lymnaea cosensis J.R. Tournouër, 1875 † - (LYMNAEIDAE) (FOSSIL)
- cosentini, Mazatlania cosentini (R.A. Philippi, 1836) - (COLUMBELLIDAE)
- cosentini, Terebra cosentini R.A. Philippi, 1836 - syn of: Mazatlania cosentini (R.A. Philippi, 1836) - (TEREBRIDAE)
- cosibensis, Etremopa cosibensis M. Yokoyama, 1920 † - syn of: Inquisitor cosibensis (M. Yokoyama, 1920 †) - (CLATHURELLIDAE) (FOSSIL)
- cosibensis, Drillia cosibensis M. Yokoyama, 1920 † - syn of: Benthomangelia cosibensis (M. Yokoyama, 1920 †) - (DRILLIIDAE) (FOSSIL)
- cosibensis, Benthomangelia cosibensis (M. Yokoyama, 1920 †) - (MANGELIIDAE) (FOSSIL)
- cosibensis, Chlamys cosibensis M. Yokoyama, 1911 † - (PECTINIDAE) (FOSSIL)
- cosibensis, Inquisitor cosibensis (M. Yokoyama, 1920 †) - (PSEUDOMELATOMIDAE) (FOSSIL)
- cosibensis, Pleurotoma cosibensis M. Yokoyama, 1920 † - syn of: Benthomangelia cosibensis (M. Yokoyama, 1920 †) - (TURRIDAE) (FOSSIL)
- cosibensis hanzawae, Chlamys cosibensis hanzawae O. Masuda, 1972 † - syn of: Chlamys cosibensis M. Yokoyama, 1911 † - (PECTINIDAE) (FOSSIL)
- cosibensis heteroglypta, Chlamys cosibensis heteroglypta M. Yokoyama, 1911 † - syn of: Chlamys cosibensis M. Yokoyama, 1911 † - (PECTINIDAE) (FOSSIL)
- cosibensis piltukensis, Chlamys cosibensis piltukensis Khomenko, 1979 † - syn of: Chlamys cosibensis M. Yokoyama, 1911 † - (PECTINIDAE) (FOSSIL)
- cosibensis turpicula, Chlamys cosibensis turpicula M. Yokoyama, 1911 † - syn of: Chlamys cosibensis M. Yokoyama, 1911 † - (PECTINIDAE) (FOSSIL)
- coskuni, Teicherticeras coskuni Erben, 1965 † - (TEICHERTICERATIDAE) (FOSSIL)
- cosmani, Amathina cosmani E.A. Kay, 1979 - (AMATHINIDAE)
- cosmani, Vexillum cosmani E.A. Kay, 1979 - (COSTELLARIIDAE)
- cosmani, Mitromica cosmani G. Rosenberg & R. Salisbury, 2003 - (COSTELLARIIDAE)
- cosmani, Chicoreus cosmani Abbott & Finlay, 1979 - (MURICIDAE)
- cosmanni, Turris cosmanni M.A. Peyrot, 1931 † - (TURRIDAE) (FOSSIL)
- Cosmasyrinx, Genus Cosmasyrinx Marwick, 1931 (TURRIDAE) (FOSSIL)
- cosmeta, Glyptophysa cosmeta T. Iredale, 1943 - (PLANORBIDAE)
- cosmeta, Avicula cosmeta A.E.M. Cossmann, 1887 † - (PTERIIDAE) (FOSSIL)
- Cosmetalepas, Genus Cosmetalepas T. Iredale, 1924 (FISSURELLIDAE)
- Cosmetodon, Subgenus Grammatodon (Cosmetodon) Branson, 1942 (PARALLELODONTIDAE) (FOSSIL)
- Cosmetopsis, Genus Cosmetopsis Rovereto, 1898 (LIMOPSIDAE) (FOSSIL)
- cosmetulus, Leptoconus cosmetulus A.E.M. Cossmann, 1900 † - (CONIDAE) (FOSSIL)
- cosmetum, Parvicardium cosmetum A.E.M. Cossmann, 1886 † - (CARDIIDAE) (FOSSIL)
- cosmetus, Palikirus cosmetus G.A. Solem, 1983 - (CHAROPIDAE)
- cosmia, Cerithiopsidella cosmia (P. Bartsch, 1907) - (CERITHIOPSIDAE)
- cosmia, Lienardia cosmia R. Winckworth, 1940 - (CLATHURELLIDAE)
- cosmia, Melanella cosmia (P. Bartsch, 1917) - (EULIMIDAE)
- cosmia, Parvioris cosmia P. Bartsch, 1917 - syn of: Melanella cosmia (P. Bartsch, 1917) - (EULIMIDAE)
- cosmia, Ludwigia cosmia (Buckman †) - (GRAPHOCERATIDAE) (FOSSIL)
- cosmia, Marginella cosmia P. Bartsch, 1915 - (MARGINELLIDAE)
- cosmia, Alvania cosmia (P. Bartsch, 1911) - (RISSOIDAE)
- cosmia, Rissoina cosmia P. Bartsch, 1911 - syn of: Alvania cosmia (P. Bartsch, 1911) - (RISSOINIDAE)
- cosmicus, Naesiotus cosmicus J.F. Mabille, 1895 - (BULIMULIDAE)
- Cosmina, syn of: Genus Episfaxis Knight, 1937 (MICRODOMATIDAE) (FOSSIL)
- Cosmioconcha, Genus Cosmioconcha W.H. Dall, 1913 (COLUMBELLIDAE)
- cosmius, Circulus cosmius P. Bartsch, 1907 - (TORNIDAE)
- Cosmoceras, syn of: Genus Kosmoceras Sowerby, 1816 (KOSMOCERATIDAE) (FOSSIL)
- Cosmocerithium, Subgenus Procerithium (Cosmocerithium) Cossmann, 1906 (PROCERITHIIDAE) (FOSSIL)
- cosmoconcha, Fossariopsis cosmoconcha C. Gemmellaro, 1889 † - (NERITOPSIDAE) (FOSSIL)
- Cosmogoniophora, Subgenus Goniophora (Cosmogoniophora) McLearn, 1918 (MODIOMORPHIDAE) (FOSSIL)
- Cosmogoniophorina, Genus Cosmogoniophorina Isberg, 1934 (GONIOPHORINIDAE) (FOSSIL)
- Cosmogyria, syn of: Genus Ludwigia Bayle, 1878 (GRAPHOCERATIDAE) (FOSSIL)
- cosmoi, Trivia cosmoi P. Dautzenberg, 1921 - syn of: Cleotrivia globosa (J.E. Gray in G.B. II Sowerby, 1832) - (TRIVIIDAE)
- cosmoi, Cleotrivia cosmoi P. Dautzenberg, 1921 - syn of: Cleotrivia globosa (J.E. Gray in G.B. II Sowerby, 1832) - (TRIVIIDAE)
- cosmoi, Gemmula cosmoi (E.R. Sykes, 1930) - (TURRIDAE)
- cosmoi, Turris cosmoi E.R. Sykes, 1930 - syn of: Gemmula cosmoi (E.R. Sykes, 1930) - (TURRIDAE)
- Cosmolithes, Genus Cosmolithes Grabau, 1904 (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Cosmomenus, Subgenus Euglandina (Cosmomenus) F.C. Baker, 1941 (SPIRAXIDAE)
- Cosmomya, Genus Cosmomya Holdhaus, 1913 (SANGUINOLITIDAE) (FOSSIL)
- Cosmonautilus, Genus Cosmonautilus Hyatt & Smith, 1905 (CLYDONAUTILIDAE) (FOSSIL)
- Cosmophiline, Genus Cosmophiline Berger, 1949 (CEPHALASPIDA (UNASSIGNED)) (FOSSIL)
- Cosmopseudodon, Subgenus Pseudodon (Cosmopseudodon) Haas, 1920 (UNIONIDAE)
- Cosmotriphora, Genus Cosmotriphora A.A. Olsson & A. Harbison, 1953 (TRIPHORIDAE)
- cossatotensis, Natica cossatotensis J. Hill, 1888 † - syn of: Viviparus cossatotensis J. Hill, 1888 † - (NATICIDAE) (FOSSIL)
- cossatotensis, Viviparus cossatotensis J. Hill, 1888 † - (VIVIPARIDAE) (FOSSIL)
- cossi, Sonorella baboquivariensis cossi W.B. Miller, 1966 - (HELMINTHOGLYPTIDAE)
- cossignanii, Joculator cossignanii A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- cossignanii, Clavatula cossignanii R. Ardovini, 2004 - (CLAVATULIDAE)
- cossignanii, Africonus cossignanii T. Cossignani & R. Fiadeiro, 2014 - (CONIDAE)
- cossignanii, Atlasica cossignanii J. Ahuir, 2013 - (HELICIDAE)
- cossignanii, Terebra cossignanii U. Aubry, 2008 - (TEREBRIDAE)
- cossignanii, Notopeplum cossignanii G.T. Poppe, 1999 - (VOLUTIDAE)
- cossignaniorum, Eulimella cossignaniorum J.J. Van Aartsen, 1995 - (PYRAMIDELLIDAE)
- cossignanorum, Serrata cossignanorum L. Bozzetti, 1997 - (MARGINELLIDAE)
- cossinea, Crithe cossinea T. Cossignani, 1997 - (CYSTISCIDAE)
- cossmani, Kamptokephalites cossmani Petitclerc, 1915 † - (MACROCEPHALITIDAE) (FOSSIL)
- cossmani, Exechestoma cossmani R.B. Newton, 1922 † - (POTAMIDIDAE) (FOSSIL)
- cossmani, Tenagodus cossmani H.F.A. von Ihering, 1907 † - (SILIQUARIIDAE) (FOSSIL)
- Cossmanica, syn of: Subgenus Tiberia (Cossmannica) W.H. Dall & P. Bartsch, 1904 (PYRAMIDELLIDAE)
- Cossmannea, Genus Cossmannea Pcelincev, 1931 (NERINEIDAE) (FOSSIL)
- Cossmannella, Genus Cossmannella Mayer, 1896 (CARDIIDA (UNASSIGNED)) (FOSSIL)
- cossmanni, Floribella cossmanni Á. Valdés & P. Lozouet, 2000 † - (APLYSIIDAE) (FOSSIL)
- cossmanni, Helicaulax cossmanni Lecointre, 1914 † - (APORRHAIDAE) (FOSSIL)
- cossmanni, Arrhoges cossmanni (Staadt, 1913 †) - (APORRHAIDAE) (FOSSIL)
- cossmanni, Maussenetia cossmanni C.T. Trechmann, 1923 † - (APORRHAIDAE) (FOSSIL)
- cossmanni, Microdrillia cossmanni (O. Meyer, 1887 †) - (BORSONIIDAE) (FOSSIL)
- cossmanni, Cancellaria cossmanni L.J. Morlet, 1888 † - (CANCELLARIIDAE) (FOSSIL)
- cossmanni, Cancellaria cossmanni A.A. Olsson, 1922 † - syn of: Cancellaria petiti A.A. Olsson, 1967 † - (CANCELLARIIDAE) (FOSSIL)
- cossmanni, Agnocardia cossmanni (Vincent, 1882 †) - (CARDIIDAE) (FOSSIL)
- cossmanni, Serratocerithium cossmanni R. Charpiat, 1919 † - (CERITHIIDAE) (FOSSIL)
- cossmanni, Hemicerithium cossmanni (W.H. Dall, 1892 †) - (CERITHIIDAE) (FOSSIL)
- cossmanni, Krachia cossmanni (P. Dautzenberg & H. Fischer, 1896) - (CERITHIOPSIDAE)
- cossmanni, Neniopsis cossmanni H. Nordsieck, 2002 - (CLAUSILIIDAE)
- cossmanni, Cryptoconus cossmanni Tucker & Renard, 1993 † - (CONIDAE) (FOSSIL)
- cossmanni, Ooliticia cossmanni Fischer, 1964 † - (EUCYCLIDAE) (FOSSIL)
- cossmanni, Clavilithes cossmanni E.W. Vredenburg, 1923 † - (FASCIOLARIIDAE) (FOSSIL)
- cossmanni, Spaniorinus cossmanni W.H. Dall, 1900 † - (GALEOMMATIDAE) (FOSSIL)
- cossmanni, Alexogyra cossmanni (Fischer, 1964 †) - (HYALOGYRINIDAE) (FOSSIL)
- cossmanni, Currylimacina cossmanni (Curry, 1982 †) - (LIMACINIDAE) (FOSSIL)
- cossmanni, Lacuna cossmanni É.A.A. Locard, 1897 - syn of: Benthobia tryonii W.H. Dall, 1889 - (LITTORINIDAE)
- cossmanni, Gardnerella cossmanni (A.L. Chavan, 1941 †) - (LUCINIDAE) (FOSSIL)
- cossmanni, Volvarina cossmanni M.A. Peyrot, 1928 † - (MARGINELLIDAE) (FOSSIL)
- cossmanni, Melanopsis abbreviata cossmanni P.M. Pallary, 1916 † - (MELANOPSIDAE) (FOSSIL)
- cossmanni, Pagodula cossmanni (É.A.A. Locard, 1897) - (MURICIDAE)
- cossmanni, Urosalpinx cossmanni A.E. Ortmann, 1900 † - (MURICIDAE) (FOSSIL)
- cossmanni, Cerithiella cossmanni P. Dautzenberg & H. Fischer, 1896 - syn of: Krachia cossmanni (P. Dautzenberg & H. Fischer, 1896) - (NEWTONIELLIDAE)
- cossmanni, Striarca cossmanni Laubriere, 1887 † - (NOETIIDAE) (FOSSIL)
- cossmanni, Nucula cossmanni Vincent, 1892 † - (NUCULIDAE) (FOSSIL)
- cossmanni, Bactroptyxis cossmanni M.A. Fischer, 1962 † - (OPISTHOBRANCHIA (UNASSIGNED)) (FOSSIL)
- cossmanni, Pecten cossmanni A. von Koenen, 1893 † - (PECTINIDAE) (FOSSIL)
- cossmanni, Plesiothyreus cossmanni F.P. Jousseaume, 1894 - (PHENACOLEPADIDAE)
- cossmanni, Plicatula cossmanni A.E.M. Cossmann, 1887 † - (PLICATULIDAE) (FOSSIL)
- cossmanni, Bouryia cossmanni J. Le Renard, 1997 † - (POMATIOPSIDAE) (FOSSIL)
- cossmanni, Besla cossmanni (A. Hornung & G. Mermod, 1924) - (PYRAMIDELLIDAE)
- cossmanni, Pyrgulina cossmanni A. Hornung & G. Mermod, 1924 - syn of: Besla cossmanni (A. Hornung & G. Mermod, 1924) - (PYRAMIDELLIDAE)
- cossmanni, Systenope cossmanni P.M.A. Morelet, 1946 † - (RAPHITOMIDAE) (FOSSIL)
- cossmanni, Strepsidura cossmanni E.W. Vredenburg, 1923 † - (STREPSIDURIDAE) (FOSSIL)
- cossmanni, Strombus cossmanni A. Dey, 1961 † - (STROMBIDAE) (FOSSIL)
- cossmanni, Terebra cossmanni E.W. Vredenburg, 1921 † - (TEREBRIDAE) (FOSSIL)
- cossmanni, Placotoma cossmanni (Rollier, 1918 †) - (TROCHOTOMIDAE) (FOSSIL)
- cossmanni, Ditremaria cossmanni Rollier, 1918 † - syn of: Placotoma cossmanni (Rollier, 1918 †) - (TROCHOTOMIDAE) (FOSSIL)
- cossmanni, Aphanotylus cossmanni (Š. Brusina, 1894 †) - (VALVATIDAE) (FOSSIL)
- cossmanni, Verticordia cossmanni W.H. Dall, 1903 † - (VERTICORDIIDAE) (FOSSIL)
- cossmanni, Miomelon cossmanni H.F.A. von Ihering, 1907 † - (VOLUTIDAE) (FOSSIL)
- cossmanni, Lyriopsis cossmanni (E.W. Vredenburg, 1923 †) - (VOLUTIDAE) (FOSSIL)
- Cossmannia, Genus Cossmannia Newton, 1891 (ZEBINIDAE) (FOSSIL)
- cossmannianum, Dentalium cossmannianum H.A. Pilsbry & B. Sharp, 1897 † - (DENTALIIDAE) (FOSSIL)
- Cossmannica, Subgenus Tiberia (Cossmannica) W.H. Dall & P. Bartsch, 1904 (PYRAMIDELLIDAE)
- Cossmannina, Genus Cossmannina Grundel & Nutzel, 2012 (TUBIFERIDAE) (FOSSIL)
- cossoni, Mauritanica cossoni A. Letourneux, 1887 - (CLAUSILIIDAE)
- cossoni, Ovatella cossoni J.R. Bourguignat, 1887 - syn of: Myosotella myosotis (J.P.R. Draparnaud, 1801) - (ELLOBIIDAE)
- cossoni, Pseudotachea cossoni (A. Letourneux, 1877) - (HELICIDAE)
- cossoni, Melanopsis cossoni J.R. Bourguignat, 1884 - (MELANOPSIDAE)
- cossoni, Tylostoma cossoni A. Thomas & F. Péron, 1889 † - (TYLOSTOMATIDAE) (FOSSIL)
- cossoni aprica, Melanopsis cossoni aprica J.R. Bourguignat, 1884 - (MELANOPSIDAE)
- cossottii, Nassarius cossottii L. Bozzetti, 2006 - syn of: Nassarius irus (E.C. Von Martens, 1880) - (NASSARIIDAE)
- cossurae, Eatonina cossurae (P. Calcara, 1841) - (CINGULOPSIDAE)
- cossurae, Rissoa cossurae P. Calcara, 1841 - syn of: Eatonina cossurae (P. Calcara, 1841) - (RISSOIDAE)
- cossurensis, Helix cossurensis L. Benoit, 1857 - syn of: Murella muralis frivaldszkyi (P. Calcara, 1846) - (HELICIDAE)
- cossurensis, Gibbula cossurensis T.A. de M. Monterosato, 1875 - syn of: Gibbula rarilineata (A. Michaud, 1829) - (TROCHIDAE)
- cossyphae, Parennea cossyphae A.C. van Bruggen, 1989 - (STREPTAXIDAE)
- cossyrae, Eatonina cossyrae P. Calcara, 1841 - syn of: Eatonina cossurae (P. Calcara, 1841) - (CINGULOPSIDAE)
- cossyrae, Mitromorpha cossyrae B. Amati, C. Smriglio & M. Oliverio, 2015 - (MITROMORPHIDAE)
- costa, Retroterra costa G.A. Solem, 1985 - (CAMAENIDAE)
- costa, Columbella costa L.R.L. Simone, 2007 - (COLUMBELLIDAE)
- Costabieta, Genus Costabieta C.F. Laseron, 1956 (PYRAMIDELLIDAE)
- Costacallista, Genus Costacallista K.V.W. Palmer, 1927 (VENERIDAE)
- costacallistiformis, Lamellinucula costacallistiformis F.E. Eames, 1951 † - (NUCULIDAE) (FOSSIL)
- Costaclis, Genus Costaclis P. Bartsch, 1947 (EULIMIDAE)
- Costaclymenia, Genus Costaclymenia Schindewolf, 1924 (COSTACLYMENIIDAE) (FOSSIL)
- COSTACLYMENIIDAE Ruzhencev, 1957 - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-CLYMENIIDA [Order]-GONIOCLYMENIOIDEA [Superfamily]) (FOSSIL)
- costacrassa, Alycaeus costacrassa Foon & Liew, 2017 - (CYCLOPHORIDAE)
- Costactaeon, Genus Costactaeon Grόndel, 1997 (TUBIFERIDAE) (FOSSIL)
- costacubensis, Janolus costacubensis J.A. Ortea & J. Espinosa, 2000 - syn of: Janolus comis Er. Marcus, 1955 - (PROCTONOTIDAE)
- costadebilis, Turbonilla costadebilis A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- Costadelos, Genus Costadelos J. Stanisic, 2010 (RHYTIDIDAE)
- costae, Atlanta costae E. Pirajno, 1840 - syn of: Atlanta peronii C.A. Lesueur, 1817 - (ATLANTIDAE)
- costae, Deceptrix costae Sharpe, 1853 † - syn of: Praenucula costae (Sharpe, 1853 †) - (CARDIOLARIIDAE) (FOSSIL)
- costae, Praeleda costae Sharpe, 1853 † - syn of: Praenucula costae (Sharpe, 1853 †) - (CARDIOLARIIDAE) (FOSSIL)
- costae, Doto costae S. Trinchese, 1881 - syn of: Doto cuspidata J. Alder & A. Hancock, 1862 - (DOTIDAE)
- costae, Emarginula costae N. Tiberi, 1855 - syn of: Emarginula rosea Bell, 1824 - (FISSURELLIDAE)
- costae, Janthina costae O.A.L. Mörch, 1860 - syn of: Janthina janthina (C. Linnaeus, 1758) - (JANTHINIDAE)
- costae, Nucula costae Sharpe, 1853 † - syn of: Praenucula costae (Sharpe, 1853 †) - (NUCULIDAE) (FOSSIL)
- costae, Praenucula costae (Sharpe, 1853 †) - (PRAENUCULIDAE) (FOSSIL)
- costae, Tellina costae R.A. Philippi, 1836 - syn of: Macomopsis pellucida (L. Spengler, 1798) - (TELLINIDAE)
- costae, Tritonia costae J.B. Vérany, 1846 - syn of: Marionia blainvillea (A. Risso, 1818) - (TRITONIIDAE)
- costae, Marionia costae J.B. Vérany, 1846 - syn of: Marionia blainvillea (A. Risso, 1818) - (TRITONIIDAE)
- costae, Semilimacella costae M. Paulucci, 1881 - syn of: Semilimacella bonellii (G. Targioni-Tozzetti, 1872) - (VITRINIDAE)
- costae, Viviparus viviparus costae (A. Mousson, 1863) - (VIVIPARIDAE)
- Costaea, syn of: Genus Flabellina W. Voigt, 1834 (FLABELLINIDAE)
- costaecus, Trochoceramus costaecus (Khalafova 1966 † - (INOCERAMIDAE) (FOSSIL)
- costaeimbricatis, Nucula costaeimbricatis R.B. Newton, 1922 † - (NUCULIDAE) (FOSSIL)
- costaeirregularis, Cardita costaeirregularis R.B. Newton, 1922 † - (CARDITIDAE) (FOSSIL)
- Costaella, Genus Costaella Kollmann, 1976 (OPISTHOBRANCHIA (UNASSIGNED)) (FOSSIL)
- costaenodulosis, Cardita costaenodulosis R.B. Newton, 1922 † - (CARDITIDAE) (FOSSIL)
- Costaglycymeris, Genus Costaglycymeris Ward, 1992 (GLYCYMERIDIDAE) (FOSSIL)
- Costagyra, Genus Costagyra Vialov, 1936 (GRYPHAEIDAE) (FOSSIL)
- costai, Cratena costai H.R. Haefelfinger, 1960 - syn of: Cratena peregrina (J.F. Gmelin, 1791) - (FACELINIDAE)
- costai, Stiliger costai A. Pruvot-Fol, 1951 - (LIMAPONTIIDAE)
- costai, Eutriphora costai Fernandes & A. Pimenta, 2015 - (TRIPHORIDAE)
- costairregularis, Glans costairregularis R.B. Newton, 1922 † - (CARDITIDAE) (FOSSIL)
- costalaricensis, Stuorella costalaricensis Zardini, 1978 † - (STUORELLIDAE) (FOSSIL)
- Costaledopsis, Genus Costaledopsis Sαnchez, 1990 (NUCULIDA (UNASSIGNED)) (FOSSIL)
- costalis, Kokenospira costalis (Ulrich & Scofield, 1897 †) - (BUCANIIDAE) (FOSSIL)
- costalis, Margarites costalis (A.A. Gould, 1841) - (MARGARITIDAE)
- costalis, Fascipericyclus costalis (B. Phillips, 1836 †) - (PERICYCLIDAE) (FOSSIL)
- costalis, Monomuchites costalis Wilson, 1961 † - (PROTEOCERATIDAE) (FOSSIL)
- costalis, Pleuronautilus costalis Shimansky, 1965 † - (TAINOCERATIDAE) (FOSSIL)
- costalis, Trochus costalis A.A. Gould, 1841 - syn of: Margarites costalis (A.A. Gould, 1841) - (TROCHIDAE)
- costalis baxteri, Margarites costalis baxteri J.H. McLean, 1995 - (MARGARITIDAE)
- Costallodiscus, Genus Costallodiscus B.A. Marshall & G.M. Barker, 2008 (CHAROPIDAE)
- Costalnya, syn of: Genus Rissoina D'Orbigny, 1840 (RISSOINIDAE)
- Costalynia, syn of: Genus Rissoina D'Orbigny, 1840 (RISSOINIDAE)
- costamagnaensis, Anatoma costamagnaensis K. Bandel, 1998 - syn of: Anatoma aspera (R.A. Philippi, 1844) - (ANATOMIDAE)
- Costamanticoceras, Genus Costamanticoceras Becker & House, 1993 (GEPHUROCERATIDAE) (FOSSIL)
- costaminuerus, Neocryptaulax costaminuerus (Grundel, 2000 †) - (CRYPTAULACIDAE) (FOSSIL)
- costaminuerus, Exelissa costaminuerus Grundel, 2000 † - syn of: Neocryptaulax costaminuerus (Grundel, 2000 †) - (CRYPTAULACIDAE) (FOSSIL)
- Costanaia, Genus Costanaia F.S. MacNeil, 1935 (UNIONIDAE)
- costanerensis, Chondrothyretes reticulata costanerensis (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- Costangula, Subgenus Strombina (Costangula) P.O. Jung, 1989 (COLUMBELLIDAE)
- costantiae, Muricopsis costantiae (Ancona, 1871 †) - (MURICIDAE) (FOSSIL)
- Costanucula, syn of: Subgenus Nuculana (Costanuculana) Habe, 1951 (NUCULANIDAE) (FOSSIL)
- Costanuculana, Subgenus Nuculana (Costanuculana) Habe, 1951 (NUCULANIDAE) (FOSSIL)
- Costanuculana, syn of: Genus Nuculana J.H.F. Link, 1807 (NUCULANIDAE)
- Costapex, Genus Costapex Fedosov, Herrmann & Bouchet, 2017 (COSTELLARIIDAE)
- Costaria, Genus Costaria A.N. Golikov, 1977 (BUCCINIDAE)
- costaria, Neptunea costaria K. Fraussen & Y. Terryn, 2007 - (BUCCINIDAE)
- costaria, Trochita costaria (J.P.S. Grateloup, 1827 †) - (CALYPTRAEIDAE) (FOSSIL)
- costaria, Drillia costaria (G.P. Deshayes †) - (DRILLIIDAE) (FOSSIL)
- costaria, Fissurella costaria G.P. Deshayes, 1824 - (FISSURELLIDAE)
- costaria, Crassispira sulcata costaria (G.P. Deshayes, 1834) † - (PSEUDOMELATOMIDAE) (FOSSIL)
- costaria, Chemnitzia costaria Wood, 1842 † - (PYRAMIDELLIDAE) (FOSSIL)
- costaria, Siphonaria costaria G.P. Deshayes, 1824 † - (SIPHONARIIDAE) (FOSSIL)
- costaria, Eopsephaea costaria (J.B.P.A. Lamarck, 1802 †) - (VOLUTIDAE) (FOSSIL)
- Costaria-group, syn of: Genus Neptunea P.F. Rφding, 1798 (BUCCINIDAE)
- costaricaensis, Luria costaricaensis W.M. Ingram, 1940 - syn of: Luria cinerea (J.F. Gmelin, 1791) - (CYPRAEIDAE)
- costaricaensis, Mitrocaprina costaricaensis Pons, Vicens & Schmidt-Effing, 2016 † - (PLAGIOPTYCHIDAE) (FOSSIL)
- costaricaensis, Guanacastea costaricaensis Pons, Vicens & Schmidt-Effing, 2016 † - (RADIOLITIDAE) (FOSSIL)
- costaricana, Acteocina bullata costaricana A.A. Olsson, 1922 † - (ACTEOCINIDAE) (FOSSIL)
- costaricana, Pomacea costaricana (E.C. Von Martens, 1899) - (AMPULLARIIDAE)
- costaricana, Rhinoclavis costaricana A.A. Olsson, 1922 † - (CERITHIIDAE) (FOSSIL)
- costaricana, Systrophiella costaricana H.A. Rehder, 1942 - (SCOLODONTIDAE)
- costaricana, Succinea costaricana E.C. Von Martens - (SUCCINEIDAE)
- costaricana, Macoma costaricana A.A. Olsson, 1922 † - (TELLINIDAE) (FOSSIL)
- costaricana, Calyptogena costaricana E.M. Krylova & H. Sahling, 2006 - (VESICOMYIDAE)
- costaricana, Scaphella costaricana A.A. Olsson, 1922 † - (VOLUTIDAE) (FOSSIL)
- costaricanum, Mexicardia dominicanum costaricanum (A.A. Olsson, 1922) - (CARDIIDAE)
- costaricanum, Sphaerium costaricanum E.C. Von Martens, 1900 - (SPHAERIIDAE)
- costaricanus, Lamellaxis costaricanus (E.C. Von Martens, 1898) - (SUBULINIDAE)
- costariceana, Pomacea costariceana E.C. Von Martens, 1899 - syn of: Pomacea costaricana (E.C. Von Martens, 1899) - (AMPULLARIIDAE)
- costaricenana, Pomacea costaricenana E.C. Von Martens, 1899 - syn of: Pomacea costaricana (E.C. Von Martens, 1899) - (AMPULLARIIDAE)
- costaricense, Adelopoma costaricense P. Bartsch & J.P.E. Morrison, 1942 - (DIPLOMMATINIDAE)
- costaricense, Incidostoma costaricense (E.C. Von Martens, 1876) - (NEOCYCLOTIDAE)
- costaricense, Pierosoma costaricense (H.B. Preston, 1907) - (PLANORBIDAE)
- costaricensis, Acteon costaricensis A.A. Olsson, 1922 † - (ACTEONIDAE) (FOSSIL)
- costaricensis, Deroceras costaricensis (T.D.A. Cockerell, 1890) - (AGRIOLIMACIDAE)
- costaricensis, Amnicola costaricensis O.A.L. Mörch, 1860 - syn of: Aroapyrgus costaricensis (O.A.L. Mörch, 1860) - (AMNICOLIDAE)
- costaricensis, Anadara costaricensis A.A. Olsson, 1922 † - (ARCIDAE) (FOSSIL)
- costaricensis, Ariolimax costaricensis T.D.A. Cockerell, 1890 - (ARIOLIMACIDAE)
- costaricensis, Drymaeus costaricensis L. Pfeiffer, 1862 - (BULIMULIDAE)
- costaricensis, Protocardia costaricensis A.A. Olsson, 1922 † - (CARDIIDAE) (FOSSIL)
- costaricensis, Cerithium costaricensis A.A. Olsson, 1922 † - (CERITHIIDAE) (FOSSIL)
- costaricensis, Aroapyrgus costaricensis (O.A.L. Mörch, 1860) - (COCHLIOPIDAE)
- costaricensis, Lirastrombina costaricensis (A.A. Olsson, 1922 †) - (COLUMBELLIDAE) (FOSSIL)
- costaricensis, Crassinella bowdenensis costaricensis A.A. Olsson, 1922 - (CRASSATELLIDAE)
- costaricensis, Carychium costaricensis E.C. Von Martens, 1898 - (ELLOBIIDAE)
- costaricensis, Helix costaricensis J.R. Roth in L. Pfeiffer, 1856 - syn of: Leptarionta costaricensis (J.R. Roth in L. Pfeiffer, 1857) - (HELICIDAE)
- costaricensis, Lucinisca costaricensis A.A. Olsson, 1922 † - (LUCINIDAE) (FOSSIL)
- costaricensis, Cythara costaricensis A.A. Olsson, 1922 † - syn of: Lepicythara heptagona (W.M. Gabb, 1873 †) - (MANGELIIDAE) (FOSSIL)
- costaricensis, Mesodesma costaricensis A.A. Olsson, 1922 † - (MESODESMATIDAE) (FOSSIL)
- costaricensis, Laevityphis costaricensis A.A. Olsson, 1922 † - (MURICIDAE) (FOSSIL)
- costaricensis, Antillophos moorei costaricensis (A.A. Olsson, 1922 †) - (NASSARIIDAE) (FOSSIL)
- costaricensis, Agaronia testacea costaricensis (A.A. Olsson, 1922 †) - (OLIVIDAE) (FOSSIL)
- costaricensis, Ostrea costaricensis A.A. Olsson, 1922 † - (OSTREIDAE) (FOSSIL)
- costaricensis, Chlamys costaricensis A.A. Olsson, 1922 † - syn of: Argopecten uselmae H.A. Pilsbry & Johnson, 1917 † - (PECTINIDAE) (FOSSIL)
- costaricensis, Pallifera costaricensis (O.A.L. Mörch, 1858) - (PHILOMYCIDAE)
- costaricensis, Planorbis costaricensis H.B. Preston, 1907 - syn of: Pierosoma costaricense (H.B. Preston, 1907) - (PLANORBIDAE)
- costaricensis, Odostomia costaricensis L.G. Hertlein & A.M. Strong, 1951 - (PYRAMIDELLIDAE)
- costaricensis, Streptostyla costaricensis S.I. Da Costa, 1904 - (SPIRAXIDAE)
- costaricensis, Succinea costaricensis E.C. Von Martens, 1898 - (SUCCINEIDAE)
- costaricensis, Chlorostoma costaricensis A.A. Olsson, 1922 † - (TEGULIDAE) (FOSSIL)
- costaricensis, Psammacoma gatunensis costaricensis A.A. Olsson, 1922 † - (TELLINIDAE) (FOSSIL)
- costaricensis, Terebra costaricensis A.A. Olsson, 1922 † - (TEREBRIDAE) (FOSSIL)
- costaricensis, Thysanophora costaricensis H.A. Rehder, 1942 - (THYSANOPHORIDAE)
- costaricensis, Bactrospira altilira costaricensis (A.A. Olsson, 1922 †) - (TURRITELLIDAE) (FOSSIL)
- costaricensis, Chione costaricensis A.A. Olsson, 1922 † - (VENERIDAE) (FOSSIL)
- costaricensis, Leptarionta costaricensis (J.R. Roth in L. Pfeiffer, 1857) - (XANTHONYCHIDAE)
- costaricensis alticola, Pallifera costaricensis alticola H.B. Baker, 1930 - (PHILOMYCIDAE)
- costaricensis crosseana, Pallifera costaricensis crosseana (H. Strebel, 1880) - (PHILOMYCIDAE)
- costarium, Infundibulum costarium J.P.S. Grateloup, 1827 † - syn of: Trochita costaria (J.P.S. Grateloup, 1827 †) - (TROCHIDAE) (FOSSIL)
- costarius, Clavilithes costarius (G.P. Deshayes, 1835 †) - (FASCIOLARIIDAE) (FOSSIL)
- Costasiella, Genus Costasiella A. Pruvot-Fol, 1951 (COSTASIELLIDAE)
- COSTASIELLIDAE K.B. Clarke, 1984 - Family (GASTROPODA-HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-SACOGLOSSA [Order]-PLAKOBRANCHACEA [Suborder]-LIMAPONTIOIDEA [Sup)
- Costasphaera, Genus Costasphaera Grόndel & Nόtzel, 2015 (CAENOGASTROPODA (UNASSIGNED)) (FOSSIL)
- costasubtilis, Turbonilla costasubtilis A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- costata, Notoplax costata (A. Adams & G.F. Angas, 1864) - (ACANTHOCHITONIDAE)
- costata, Maitua costata C.M. Cooke & Y. Kondo, 1960 - (ACHATINELLIDAE)
- costata, Scalaronoba costata A.W.B. Powell, 1927 - (ACLIDIDAE)
- costata, Acmaea costata G.B. Sowerby, 1839 - syn of: Lottia costata (G.B. Sowerby, 1839) - (ACMAEIDAE)
- costata, Aldanella costata Missarzhevsky, 1989 † - (ALDANELLIDAE) (FOSSIL)
- costata, Clathrella costata G.B. Brocchi, 1814 - syn of: Clathrella clathrata (R.A. Philippi, 1844) - (AMATHINIDAE)
- costata, Amphicoelia costata J.W. Hall & R.P. Whitfield, 1875 † - (AMBONYCHIIDAE) (FOSSIL)
- costata, Baicalia costata (W. Dybowski, 1875) - (AMNICOLIDAE)
- costata, Pisinna costata (C. Hedley, 1911) - (ANABATHRIDAE)
- costata, Delphinula costata F. Danilo & G.B. Sandri, 1856 - syn of: Skeneoides jeffreysii (T.A. de M. Monterosato, 1872) - (ANGARIIDAE)
- costata, Anomia costata L.A. Reeve, 1859 - syn of: Anomia macostata M. Huber, 2010 - (ANOMIIDAE)
- costata, Cycloscena costata C.O. Waterhouse, 1963 † - (ANOMPHALIDAE) (FOSSIL)
- costata, Lunarca costata J.E. Gray, 1857 - syn of: Lunarca ovalis (J.G. Bruguière, 1789) - (ARCIDAE)
- costata, Arca costata J.E. Gray, 1857 - syn of: Lunarca ovalis (J.G. Bruguière, 1789) - (ARCIDAE)
- costata, Scalinella costata (W.H. Pease, 1868) - (ASSIMINEIDAE)
- costata, Bakevellia costata (Schlotheim, 1820 †) - (BAKEVELLIIDAE) (FOSSIL)
- costata, Tylopoma costata Gozhik, 2002 † - (BITHYNIIDAE) (FOSSIL)
- costata, Engina costata W.H. Pease, 1860 - (BUCCINIDAE)
- costata, Pisania costata K.H.J. Thiele, 1925 - (BUCCINIDAE)
- costata, Cominella costata (J.R.C. Quoy & J.P. Gaimard, 1833) - (BUCCINIDAE)
- costata, Neptunea despecta costata (T.A. Verkrüzen, 1881) - (BUCCINIDAE)
- costata, Dispotaea costata (T. Say, 1820 †) - (CALYPTRAEIDAE) (FOSSIL)
- costata, Maoricrypta costata (G.B. I Sowerby, 1824) - (CALYPTRAEIDAE)
- costata, Crepidula costata G.P. Deshayes, 1830 - syn of: Maoricrypta costata (G.B. I Sowerby, 1824) - (CALYPTRAEIDAE)
- costata, Cancellaria costata G.B. I Sowerby, 1822 - syn of: Bivetiella cancellata (C. Linnaeus, 1767) - (CANCELLARIIDAE)
- costata, Cardinia costata Morris, 1845 † - syn of: Stutchburia costata (Morris, 1845 †) - (CARDINIIDAE) (FOSSIL)
- costata, Diacria costata (G.J. Pfeffer, 1879) - (CAVOLINIIDAE)
- costata, Cerion costata H.H. Beck, 1837 - (CERIONIDAE)
- costata, Phacussa fulminata costata H.H. Suter, 1899 - (CHAROPIDAE)
- costata, Lucilina costata Mergner, 1979 ex Leloup MS - syn of: Lucilina sueziensis (L.A. Reeve, 1847) - (CHITONIDAE)
- costata, Granaria costata (Lueger, 1981) † - (CHONDRINIDAE) (FOSSIL)
- costata, Kaliella costata H.A. Pilsbry & Y. Hirase, 1905 - (CHRONIDAE)
- costata, Pseudopisinna costata W.F. Ponder & E.K. Yoo, 1980 - (CINGULOPSIDAE)
- costata, Sororcula costata F. Haas, 1953 † - (CIRRIDAE) (FOSSIL)
- costata, Stabilea costata (C. Pfeiffer, 1828) - (CLAUSILIIDAE)
- costata, Montenegrina umbilicata costata (O. Böttger, 1907) - (CLAUSILIIDAE)
- costata, Laciniaria plicata costata M. von Kimakowicz, 1883 - (CLAUSILIIDAE)
- costata, Alopia canescens costata E.A. Bielz, 1859 - (CLAUSILIIDAE)
- costata, Clionella costata (W.J. Swainson, 1840) - (CLAVATULIDAE)
- costata, Clavatula costata (E.M. Da Costa, 1778 †) - (CLAVATULIDAE) (FOSSIL)
- costata, Clistoconcha costata W.H. Turton, 1932 - syn of: Clistoconcha insignis E.A. Smith, 1910 - (CLISTOCONCHIDAE)
- costata, Coelostylina costata Batten & A. Stokes, 1986 † - (COELOSTYLINIDAE) (FOSSIL)
- costata, Leptothyra costata W.H. Pease, 1869 - syn of: Herpetopoma verruca (A.A. Gould, 1845) - (COLLONIIDAE)
- costata, Astyris costata V.V. Gulbin, 1983 - (COLUMBELLIDAE)
- costata, Anachis costata A. Valenciennes, 1833 - syn of: Anachis fluctuata (G.B. I Sowerby, 1832) - (COLUMBELLIDAE)
- costata, Columbella costata A. Valenciennes, 1833 - syn of: Anachis fluctuata (G.B. I Sowerby, 1832) - (COLUMBELLIDAE)
- costata, Anachis costata P.L. Duclos, 1835 - syn of: Anachis fluctuata (G.B. I Sowerby, 1832) - (COLUMBELLIDAE)
- costata, Corbula costata Sowerby † - (CORBULIDAE) (FOSSIL)
- costata, Latouchella costata Cobbold, 1921 † - (COREOSPIRIDAE) (FOSSIL)
- costata, Latiromitra costata (W.H. Dall, 1890) - (COSTELLARIIDAE)
- costata, Pusia costata H.C. Weinkauff, 1868 - syn of: Pusia ebenus (J.B.P.A. Lamarck, 1811) - (COSTELLARIIDAE)
- costata, Natiria costata Patte, 1922 † - (CRASPEDOSTOMATIDAE) (FOSSIL)
- costata, Natiria costata (Münster, 1841 †) - (CRASPEDOSTOMATIDAE) (FOSSIL)
- costata, Cardiomya costata (G.B. I Sowerby, 1834) - (CUSPIDARIIDAE)
- costata, Neaera costata K.J. Bush, 1885 - syn of: Cardiomya ornatissima (A.V.M.D. D'Orbigny, 1853) - (CUSPIDARIIDAE)
- costata, Kidderia costata N.H. Odhner, 1924 - (CYAMIIDAE)
- costata, Pricella costata (G.G. Münster, 1842 †) - (CYRTOCLYMENIIDAE) (FOSSIL)
- costata, Cyrtoclymenia costata (G.G. Münster, 1840 †) - (CYRTOCLYMENIIDAE) (FOSSIL)
- costata, Cyrtoclymenia costata C.N. Lange, 1929 † - syn of: Pleuroclymenia costata (C.N. Lange, 1929 †) - (CYRTOCLYMENIIDAE) (FOSSIL)
- costata, Arinia costata O.F. von Möllendorff, 1887 - (DIPLOMMATINIDAE)
- costata, Diplotheca costata Valkanov, 1970 † - (DIPLOTHECIDAE) (FOSSIL)
- costata, Plagiostropha costata F.E. Wells, 1995 - (DRILLIIDAE)
- costata, Tralia costata (J.R.C. Quoy & J.P. Gaimard, 1832) - (ELLOBIIDAE)
- costata, Schizostoma costata Münster, 1841 † - (EUOMPHALIDAE) (FOSSIL)
- costata, Falcatodonta costata Cope 1996 † - (FALCATODONTIDAE) (FOSSIL)
- costata, Leucozonia costata (W.H. Dall, 1890 †) - (FASCIOLARIIDAE) (FOSSIL)
- costata, Emarginula costata J.B.P.A. Lamarck, 1802 † - (FISSURELLIDAE) (FOSSIL)
- costata, Fissurella costata R.P. Lesson, 1831 - (FISSURELLIDAE)
- costata, Gattendorfia costata Vohringer, 1960 † - (GATTENDORFIIDAE) (FOSSIL)
- costata, Lunulazona costata Sadlick & C. Nielsen, 1963 † - (GOSSELETINIDAE) (FOSSIL)
- costata, Exogyra costata T. Say, 1820 † - (GRYPHAEIDAE) (FOSSIL)
- costata, Haliotis costata W.J. Swainson, 1822 - syn of: Haliotis australis J.F. Gmelin, 1791 - (HALIOTIDAE)
- costata, Harpa costata (C. Linnaeus, 1758) - (HARPIDAE)
- costata, Bemella costata Fedorov, 1984 † - (HELCIONELLIDAE) (FOSSIL)
- costata, Parakaliella costata (H.A. Pilsbry & Y. Hirase, 1904) - (HELICARIONIDAE)
- costata, Helix costata O.F. Müller, 1774 - syn of: Vallonia costata (O.F. Müller, 1774) - (HELICIDAE)
- costata, Eutrochatella costata (J.E. Gray, 1824) - (HELICINIDAE)
- costata, Lophonema costata Kobayashi, 1959 † - (HELICOTOMIDAE) (FOSSIL)
- costata, Cartericardia costata (Cresswell, 1893 †) - (HIPPOCARDIIDAE) (FOSSIL)
- costata, Hipponix costata Erdmann & Morra, 1985 † - (HIPPONICIDAE) (FOSSIL)
- costata, Graciliclava costata (C. Hedley, 1922) - (HORAICLAVIDAE)
- costata, Euomphalia strigella costata (J.R. Bourguignat, 1881) - (HYGROMIIDAE)
- costata, Stutchburia costata (Morris, 1845 †) - (KALENTERIDAE) (FOSSIL)
- costata, Myoconcha costata J. Brown, 1841 † - syn of: Permophorus costatus (J. Brown, 1841 †) - (KALENTERIDAE) (FOSSIL)
- costata, Lancedellia costata (Zardini, 1978 †) - (LANCEDELLIIDAE) (FOSSIL)
- costata, Realia costata W.H. Pease, 1868 - syn of: Scalinella costata (W.H. Pease, 1868) - (LIAREIDAE)
- costata, Lottia costata (G.B. Sowerby, 1839) - (LOTTIIDAE)
- costata, Stylonema costata C.L.F. von Sandberger, 1853 † - syn of: Stylonema hennahiana (Sedgwick & Murchison, 1840 †) - (LOXONEMATIDAE) (FOSSIL)
- costata, Clathrolucina costata (A.V.M.D. D'Orbigny, 1846) - (LUCINIDAE)
- costata, Lutraria costata G.W. Tryon, 1870 - syn of: Lutraria complanata (J.F. Gmelin, 1791) - (MACTRIDAE)
- costata, Mangelia costata (T. Pennant, 1777) - (MANGELIIDAE)
- costata, Tenaturris costata L.A. Reeve, 1845 - syn of: Tenaturris decora (E.A. Smith, 1882) - (MANGELIIDAE)
- costata, Mangelia costata E. Donovan, 1804 - syn of: Mangelia coarctata (E. Forbes, 1840) - (MANGELIIDAE)
- costata, Eratoidea costata (L. Bozzetti, 1997) - (MARGINELLIDAE)
- costata, Melanopsis costata (G.A. Olivier, 1804) - (MELANOPSIDAE)
- costata, Melanopsis costata Ludwig, 1865 - syn of: Melanopsis costata (G.A. Olivier, 1804) - (MELANOPSIDAE)
- costata, Melanopsis costata W. Kobelt, 1880 - syn of: Melanopsis stephanota J.R. Bourguignat, 1884 - (MELANOPSIDAE)
- costata, Deussenia bellalirata costata N.F. Sohl, 1964 † - (MELONGENIDAE) (FOSSIL)
- costata, Plaxiphora albida costata (H.M.D. de Blainville, 1825) - (MOPALIIDAE)
- costata, Aclisina costata Mark, 1912 † - syn of: Plocezyga costata (Mark, 1912 †) - (MURCHISONIIDAE) (FOSSIL)
- costata, Coralliophila costata (H.M.D. de Blainville, 1832) - (MURICIDAE)
- costata, Purpura costata G.B. Brocchi, 1825 † - syn of: Carinorbis burdigalus (A.V.M.D. D'Orbigny, 1852 †) - (MURICIDAE) (FOSSIL)
- costata, Costatoria costata (Zenker, 1833 †) - (MYOPHORIIDAE) (FOSSIL)
- costata, Pallacera costata (W.M. Gabb, 1873 †) - (NASSARIIDAE) (FOSSIL)
- costata, Nassa costata A. Adams, 1852 - syn of: Tritia casta (A.A. Gould, 1850) - (NASSARIIDAE)
- costata, Aciculina costata A. Adams, 1853 - syn of: Nassarius labiatus (A. Adams, 1853) - (NASSARIIDAE)
- costata, Neritaria costata Batten & A. Stokes, 1986 † - (NERITARIIDAE) (FOSSIL)
- costata, Ritena costata (J.F. Gmelin, 1791) - (NERITIDAE)
- costata, Nerita costata G.B. Brocchi, 1814 non Gmelin, 1791 - syn of: Clathrella clathrata (R.A. Philippi, 1844) - (NERITIDAE)
- costata, Amphitrochus mogharensis costata J.H.F. Douvillé, 1916 † - (NODODELPHINULIDAE) (FOSSIL)
- costata, Clessinia costata (L. Pfeiffer, 1848) - (ODONTOSTOMIDAE)
- costata, Oriostoma costata J. Perner, 1903 † - (ORIOSTOMATIDAE) (FOSSIL)
- costata, Orthonota costata Morris, 1845 † - syn of: Stutchburia costata (Morris, 1845 †) - (ORTHONOTIDAE) (FOSSIL)
- costata, Orthonychia costata Barrois, 1889 † - (ORTHONYCHIIDAE) (FOSSIL)
- costata, Lopha costata Sowerby, 1825 † - (OSTREIDAE) (FOSSIL)
- costata, Leptozyga costata E.K. Yoo, 1994 † - (PALAEOSTYLIDAE) (FOSSIL)
- costata, Pragozyga costata Frýda, 1999 † - (PALAEOZYGOPLEURIDAE) (FOSSIL)
- costata, Patella costata R.P. Lesson, 1831 - (PATELLIDAE)
- costata, Brachytomaria costata E.F.R.K. Koken & J. Perner, 1925 † - (PHANEROTREMATIDAE) (FOSSIL)
- costata, Siliqua costata (T. Say, 1822) - (PHARIDAE)
- costata, Cycloclymenia costata C.N. Lange, 1929 † - (PHENACOCERATIDAE) (FOSSIL)
- costata, Cosa costata (F. Bernard, 1896) - (PHILOBRYIDAE)
- costata, Cyrtopleura costata (C. Linnaeus, 1758) - (PHOLADIDAE)
- costata, Discotomaria costata Batten, 1958 † - (PHYMATOPLEURIDAE) (FOSSIL)
- costata, Costatella costata (W. Newcomb, 1861) - (PHYSIDAE)
- costata, Sansonia costata T. Kase, 1998 - (PICKWORTHIIDAE)
- costata, Biomphalaria costata W.A. Biese, 1951 - (PLANORBIDAE)
- costata, Pleuroclymenia costata (C.N. Lange, 1929 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- costata, Tricula costata (N.J. Poirier, 1881) - (POMATIOPSIDAE)
- costata, Jullienia costata N.J. Poirier, 1881 - syn of: Tricula costata (N.J. Poirier, 1881) - (POMATIOPSIDAE)
- costata, Paragnesia costata (G.A. Goldfuss, 1844 †) - (PORCELLIIDAE) (FOSSIL)
- costata, Kokenella costata (Münster, 1841 †) - (PORCELLIIDAE) (FOSSIL)
- costata, Tapinotomaria costata Batten, 1958 † - (PORTLOCKIELLIDAE) (FOSSIL)
- costata, Cerithideopsis costata (E.M. Da Costa, 1778) - (POTAMIDIDAE)
- costata, Psammobia costata S.C.T. Hanley, 1843 - syn of: Gari virgata (J.B.P.A. Lamarck, 1818) - (PSAMMOBIIDAE)
- costata, Plocezyga costata (Mark, 1912 †) - (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- costata, Metzgeria costata W.H. Dall, 1890 - syn of: Latiromitra costata (W.H. Dall, 1890) - (PTYCHATRACTIDAE)
- costata, Pupinella costata C. Hedley & C.T. Musson, 1892 - (PUPINIDAE)
- costata, Cabestana costata P.F. Röding, 1798 - syn of: Cabestana cutacea (C. Linnaeus, 1767) - (RANELLIDAE)
- costata, Raphitoma philberti costata (A. Michaud, 1829) - (RAPHITOMIDAE)
- costata, Rissoa costata J. Adams, 1797 - syn of: Manzonia crassa (F. Kanmacher, 1798) - (RISSOIDAE)
- costata, Rissoa costata A.G. Desmarest, 1814 - syn of: Rissoa variabilis (J.K. Megerle Von Mühlfeld, 1824) - (RISSOIDAE)
- costata, Manzonia costata J. Adams, 1797 - syn of: Manzonia crassa (F. Kanmacher, 1798) - (RISSOIDAE)
- costata, Rissoina costata A. Adams, 1851 - (RISSOINIDAE)
- costata, Rostellaria costata Sowerby, 1832 † - (ROSTELLARIIDAE) (FOSSIL)
- costata, Ladinaticella costata (Münster, 1841 †) - (SCALANERITINIDAE) (FOSSIL)
- costata, Scissurella costata d'Orbigny, 1824 - (SCISSURELLIDAE)
- costata, Mauryna costata Martin, 1931 † - (SERAPHSIDAE) (FOSSIL)
- costata, Siphonaria maura costata G.B. I Sowerby, 1835 - (SIPHONARIIDAE)
- costata, Decorochilina costata Frýda, 1999 † - (SOLENISCIDAE) (FOSSIL)
- costata, Globobulimorpha costata E.K. Yoo, 1994 † - (SOLENISCIDAE) (FOSSIL)
- costata, Sonninia costata Buckman † - (SONNINIIDAE) (FOSSIL)
- costata, Pseudosubulina costata (H.B. Baker, 1939) - (SPIRAXIDAE)
- costata, Strepsidura costata W.J. Swainson, 1840 † - (STREPSIDURIDAE) (FOSSIL)
- costata, Tellina costata G.B. Sowerby, 1867 - syn of: Tellina pretium A.E. Salisbury, 1934 - (TELLINIDAE)
- costata, Terebra costata K.T. Menke, 1828 - syn of: Hastula hastata (J.F. Gmelin, 1791) - (TEREBRIDAE)
- costata, Hastula costata K.T. Menke, 1828 - syn of: Hastula hastata (J.F. Gmelin, 1791) - (TEREBRIDAE)
- costata, Kossmatella costata J.H.F. Douvillé, 1916 † - (TETRAGONITIDAE) (FOSSIL)
- costata, Melania costata G.A. Olivier, 1804 - syn of: Melanopsis costata (G.A. Olivier, 1804) - (THIARIDAE)
- costata, Cochliolepis costata B.M. Landau, F. Da Silva & S.M. Heitz, 2016 † - (TORNIDAE) (FOSSIL)
- costata, Adeorbis costata A. Garrett, 1857 - syn of: Fossarus garrettii W.H. Pease, 1868 - (TORNIDAE)
- costata, Mackinnonia costata W.C. Zhou & Q. Xiao, 1984 † - syn of: Mackinnonia rostrata (W.C. Zhou & Q. Xiao, 1984 †) - (TRENELLIDAE) (FOSSIL)
- costata, Chametrachea costata G. Richter, 2008 - syn of: Tridacna squamosina R. Sturany, 1899 - (TRIDACNIDAE)
- costata, Trigonia costata Parkinson, 1811 † - (TRIGONIIDAE) (FOSSIL)
- costata, Triphora costata W.H. Pease, 1871 - (TRIPHORIDAE)
- costata, Triviella costata (J.F. Gmelin, 1791) - (TRIVIIDAE)
- costata, Truncatella costata É.A. Benoist, 1895 † - syn of: Truncatella wattebledi É.A. Benoist, 1878 † - (TRUNCATELLIDAE) (FOSSIL)
- costata, Tudicla costata R. Tate, 1888 † - (TURBINELLIDAE) (FOSSIL)
- costata, Lasmigona costata (C.S. Rafinesque, 1820) - (UNIONIDAE)
- costata, Myonia costata Rocha-Campos, 1970 † - (VACUNELLIDAE) (FOSSIL)
- costata, Vallonia costata (O.F. Müller, 1774) - (VALLONIIDAE)
- costata, Petricola costata R.A. Philippi, 1849 - syn of: Petricola rugosa Sowerby, 1834 - (VENERIDAE)
- costata, Venus costata L.W. Dillwyn, 1817 - syn of: Callista erycinella (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- costata, Venus costata J.R.C. Quoy & J.P. Gaimard, 1835 - syn of: Leukoma crassicosta (G.P. Deshayes, 1835) - (VENERIDAE)
- costata, Petricola costata J.B.P.A. Lamarck, 1801 - syn of: Petricola lapicida (J.F. Gmelin, 1791) - (VENERIDAE)
- costata, Chamelea costata T. Brown, 1827 - syn of: Clausinella fasciata (E.M. Da Costa, 1778) - (VENERIDAE)
- costata, Lyropupa costata (W.H. Pease, 1871) - (VERTIGINIDAE)
- costata, Vertigo costata W.H. Pease, 1871 - syn of: Lyropupa costata (W.H. Pease, 1871) - (VERTIGINIDAE)
- costata, Voluta costata W.J. Swainson, 1824 - syn of: Lyria anna (R.P. Lesson, 1835) - (VOLUTIDAE)
- costata, Stosicia costata (Boettger, 1887 †) - (ZEBINIDAE) (FOSSIL)
- costata abbreviata, Melanopsis costata abbreviata Š. Brusina, 1874 † - syn of: Melanopsis abbreviata Š. Brusina, 1874 † - (MELANOPSIDAE) (FOSSIL)
- costata amurensis, Vallonia costata amurensis V. Sterki in H.A. Pilsbry, 1893 - syn of: Vallonia patens (O.W.H. Reinhardt, 1883) - (VALLONIIDAE)
- costata asiatica, Vallonia costata asiatica G. Nevill, 1878 - syn of: Vallonia asiatica (G. Nevill, 1878) - (VALLONIIDAE)
- costata chamnessi, Maoricrypta costata chamnessi E.J. Petuch, 1994 - (CALYPTRAEIDAE)
- costata chantrei, Melanopsis costata chantrei É.A.A. Locard, 1921 - (MELANOPSIDAE)
- costata cingulata, Stabilea costata cingulata (L. Pfeiffer, 1859) - (CLAUSILIIDAE)
- costata coarctata, Pseudorhaphitoma costata coarctata G.B. Sowerby, 1897 - syn of: Pseudorhaphitoma alfredi (E.A. Smith, 1904) - (MANGELIIDAE)
- costata coarctata, Mangelia costata coarctata E. Forbes, 1840 - syn of: Mangelia coarctata (E. Forbes, 1840) - (MANGELIIDAE)
- costata commutata, Stabilea costata commutata (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- costata curta, Stabilea costata curta (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- costata degenerata, Melanopsis costata degenerata H.B. Preston, 1914 - (MELANOPSIDAE)
- costata eritmeta, Mangelia costata eritmeta R.B. Watson, 1880 - (MANGELIIDAE)
- costata forticostata, Melanopsis costata forticostata F. Paetel, 1888 - (MELANOPSIDAE)
- costata franconica, Stabilea costata franconica P. Ehrmann, 1933 - (CLAUSILIIDAE)
- costata funiculata, Melanopsis costata funiculata P. Fischer in Gaudry, 1867 † - (MELANOPSIDAE) (FOSSIL)
- costata fusca, Stabilea costata fusca (F.E. De Betta, 1855) - (CLAUSILIIDAE)
- costata fusiformis, Stabilea costata fusiformis (H.C. Küster, 1853) - (CLAUSILIIDAE)
- costata glabra, Melanopsis costata glabra Š. Brusina, 1874 † - syn of: Melanopsis abbreviata glabra Š. Brusina, 1874 † - (MELANOPSIDAE) (FOSSIL)
- costata harpa, Melanopsis costata harpa C.A. Westerlund, 1892 - (MELANOPSIDAE)
- costata inflexa, Melanopsis costata inflexa P.M. Pallary, 1939 - (MELANOPSIDAE)
- costata infracincta, Melanopsis costata infracincta E.C. Von Martens, 1874 - (MELANOPSIDAE)
- costata inodata, Melanopsis costata inodata P.M. Pallary, 1939 - (MELANOPSIDAE)
- costata intermedia, Stabilea costata intermedia (L. Pfeiffer, 1847) - (CLAUSILIIDAE)
- costata istracosta, Stabilea costata istracosta H. Nordsieck, 2007 - (CLAUSILIIDAE)
- costata jordanica, Melanopsis costata jordanica J.R. Roth, 1839 - syn of: Melanopsis jordanica J.R. Roth, 1839 - (MELANOPSIDAE)
- costata laetifica, Harpa costata laetifica (J.C. Melvill, 1916) - (HARPIDAE)
- costata lata, Trigonia costata lata J. Lycett † - (TRIGONIIDAE) (FOSSIL)
- costata lineata, Melanopsis costata lineata P.M. Pallary, 1939 † - syn of: Melanopsis multiformis Blanckenhorn, 1897 † - (MELANOPSIDAE) (FOSSIL)
- costata lutea, Harpa costata lutea L. Bozzetti, 2012 - (HARPIDAE)
- costata luteola, Manzonia costata luteola P. Dautzenberg, 1889 - syn of: Manzonia unifasciata Dautzemburg, 1889 - (RISSOIDAE)
- costata luteopsis, Melanopsis costata luteopsis J. Germain, 1921 - syn of: Melanopsis saulcyi J.R. Bourguignat, 1853 - (MELANOPSIDAE)
- costata metcalfei, Mangelia costata metcalfei (G.B. II Sowerby, 1859) - (MANGELIIDAE)
- costata nana, Melanopsis costata nana F. Paetel, 1888 - (MELANOPSIDAE)
- costata natisonensis, Stabilea costata natisonensis H. Nordsieck, 2007 - (CLAUSILIIDAE)
- costata nodosa, Melanopsis costata nodosa Š. Brusina, 1874 † - syn of: Melanopsis abbreviata nodosula W.A. Wenz, 1928 † - (MELANOPSIDAE) (FOSSIL)
- costata obliquata, Melanopsis costata obliquata P.M. Pallary, 1939 - syn of: Melanopsis costata (G.A. Olivier, 1804) - (MELANOPSIDAE)
- costata psila, Stabilea costata psila (C.A. Westerlund, 1884) - (CLAUSILIIDAE)
- costata puukolekolensis, Lyropupa costata puukolekolensis H.A. Pilsbry & C.M. Cooke, 1920 - syn of: Lyropupa kahoolavensis puukolekolensis H.A. Pilsbry & C.M. Cooke, 1920 - (VERTIGINIDAE)
- costata rubra, Fissurella costata rubra Ziegenhorn & Thiem, 1925 - syn of: Fissurella costata R.P. Lesson, 1831 - (FISSURELLIDAE)
- costata salmacida, Cerithideopsis costata salmacida (P.M.A. Morelet, 1849) - (POTAMIDIDAE)
- costata schmidti, Stabilea costata schmidti H. Nordsieck, 2007 - (CLAUSILIIDAE)
- costata sigridae, Stabilea costata sigridae H. Nordsieck, 2007 - (CLAUSILIIDAE)
- costata silesiaca, Stabilea costata silesiaca (A. Schmidt, 1868) - (CLAUSILIIDAE)
- costata singularis, Stabilea costata singularis (O. Böttger, 1879) - (CLAUSILIIDAE)
- costata strigosa, Melanopsis costata strigosa P.M. Pallary, 1939 - syn of: Melanopsis costata (G.A. Olivier, 1804) - (MELANOPSIDAE)
- costata subcostata, Stabilea costata subcostata (O. Böttger, 1879) - (CLAUSILIIDAE)
- costata subcostata, Mangelia costata subcostata Boettger, 1906 † - (MANGELIIDAE) (FOSSIL)
- costata subnodata, Melanopsis costata subnodata P.M. Pallary, 1939 - syn of: Melanopsis costata (G.A. Olivier, 1804) - (MELANOPSIDAE)
- costata turcica, Melanopsis costata turcica A. Mousson, 1874 - (MELANOPSIDAE)
- costata turrita, Cerithideopsis costata turrita (R.E.C. Stearns, 1873) - (POTAMIDIDAE)
- costata ungulata, Stabilea costata ungulata (E.A. Rossmässler, 1838) - (CLAUSILIIDAE)
- costata unifasciata, Manzonia costata unifasciata P. Dautzenberg, 1889 - syn of: Manzonia unifasciata Dautzemburg, 1889 - (RISSOIDAE)
- Costataenia, Genus Costataenia Nόtzel & Nakazawa, 2012 (MURCHISONIIDAE) (FOSSIL)
- Costataphrus, Genus Costataphrus Grόndel, 2007 (ATAPHRIDAE) (FOSSIL)
- Costatella, syn of: Genus Helicopsis L.I. Fitzinger, 1833 (HYGROMIIDAE)
- Costatella, Subgenus Physa (Costatella) W.H. Dall, 1870 (PHYSIDAE)
- Costatheca, Genus Costatheca Rozanov & al., 1969 (TETRATHECIDAE) (FOSSIL)
- costatiformis, Stenozone costatiformis Swart, 1998 † - (GOSSELETINIDAE) (FOSSIL)
- costatiformis, Canthidomus costatiformis Papp, 1953 † - (MELANOPSIDAE) (FOSSIL)
- costatiformis skuphoi, Canthidomus costatiformis skuphoi Papp & Psarianos, 1955 † - (MELANOPSIDAE) (FOSSIL)
- costatissima, Lycettitrigonia costatissima (Petter-Receveur, 1955 †) - (RUTITRIGONIIDAE) (FOSSIL)
- costato, Temnocheilus costato (McCoy) † - (KONINCKIOCERATIDAE) (FOSSIL)
- Costatoaphanaia, Genus Costatoaphanaia Biakov, 2008 (ATOMODESMATIDAE) (FOSSIL)
- costatofasciata, Lahnospira costatofasciata (C.L.F. von Sandberger, 1842 †) - (GOSSELETINIDAE) (FOSSIL)
- costatogranosa, Rissoina costatogranosa (A. Garrett, 1873) - (RISSOINIDAE)
- costatogranosa, Phosinella costatogranosa (A. Garrett, 1873) - syn of: Rissoina costatogranosa (A. Garrett, 1873) - (RISSOINIDAE)
- costatogyratus, Cochlostoma costatogyratus P.V. Gredler, 1894 - syn of: Eupomatias henricae P. von Ströbel, 1851 - (COCHLOSTOMATIDAE)
- Costatohelix, Genus Costatohelix Grόndel & Hostettler, 2014 (DISCOHELICIDAE) (FOSSIL)
- Costatoleda, Subgenus Nuculana (Costatoleda) K. Roth von Telegd, 1915 (NUCULANIDAE)
- Costatomphalus, Genus Costatomphalus Grόndel & Kollmann 2012 (LIOTIIDAE) (FOSSIL)
- costatonodosus, Proconulus costatonodosus J. Gründel & al., 2012 † - (PROCONULIDAE) (FOSSIL)
- Costatopatella, syn of: Genus Patella C. Linnaeus, 1758 (PATELLIDAE)
- Costatophora, Genus Costatophora B.A. Marshall, 1994 (TRIPHORIDAE)
- costatoplumata, Unica costatoplumata Gorbach 1985 † - (PTERIIDA (UNASSIGNED)) (FOSSIL)
- costatoradiatum, Phylloceras costatoradiatum D. Geyer, 1886 † - (PHYLLOCERATIDAE) (FOSSIL)
- Costatoria, Genus Costatoria Waagen, 1907 (MYOPHORIIDAE) (FOSSIL)
- COSTATORIIDAE Newell & Boyd, 1975 - Family (BIVALVIA-PALAEOHETERODONTA [Subclass]-TRIGONIIDA [Order]-TRIGONIOIDEA [Superfamily]) (FOSSIL)
- costatostriatum, Mesopeplum costatostriatum (P. Marshall, 1918 †) - (PECTINIDAE) (FOSSIL)
- costatostriatus, Volutaxis costatostriatus (L. Pfeiffer, 1856) - (SPIRAXIDAE)
- Costatrochus, Genus Costatrochus Grόndel, 2009 (NODODELPHINULIDAE) (FOSSIL)
- costattenuata, Cosmioconcha costattenuata J. Pelorce, 2017 - (COLUMBELLIDAE)
- costatula, Donaldina costatula (J. Donald, 1885 †) - (DONALDINIDAE) (FOSSIL)
- costatula, Pteroperna costatula (Eudes-Deslongchamps, 1824 †) - (PTERIIDAE) (FOSSIL)
- costatulata, Eratoidea costatulata (K.H.J. Thiele, 1925) - (MARGINELLIDAE)
- Costatulites, Genus Costatulites Berger, 1982 (TENTACULITA (UNASSIGNED)) (FOSSIL)
- costatum, Euomphaloceras costatum Cobban & al., 1989 † - (ACANTHOCERATIDAE) (FOSSIL)
- costatum, Nigericeras costatum Barber, 1957 † - syn of: Vascoceras glabrum Barber, 1957 † - (ACANTHOCERATIDAE) (FOSSIL)
- costatum, Phasianema costatum G.B. Brocchi, 1814 - syn of: Clathrella clathrata (R.A. Philippi, 1844) - (AMATHINIDAE)
- costatum, Euaspidoceras costatum (Dorn, 1976 †) - (ASPIDOCERATIDAE) (FOSSIL)
- costatum, Intomodesma costatum A.M. Popov, 1958 † - (ATOMODESMATIDAE) (FOSSIL)
- costatum, Tuchodiceras costatum Tozer, 1994 † - (BEYRICHITIDAE) (FOSSIL)
- costatum, Neokentroceras costatum F. Haas, 1942 † - (BRANCOCERATIDAE) (FOSSIL)
- costatum, Buccinum costatum A.N. Golikov, 1980 - (BUCCINIDAE)
- costatum, Probuccinum costatum K.H.J. Thiele, 1912 - (BUCCINIDAE)
- costatum, Buccinum costatum J.R.C. Quoy & J.P. Gaimard, 1833 - syn of: Cominella costata (J.R.C. Quoy & J.P. Gaimard, 1833) - (BUCCINIDAE)
- costatum, Caecum costatum A.E. Verrill, 1872 - syn of: Caecum cooperi Smith, 1860 - (CAECIDAE)
- costatum, Calliostoma costatum T. Martyn - syn of: Calliostoma ligatum Gould, 1852 - (CALLIOSTOMATIDAE)
- costatum, Cardium costatum C. Linnaeus, 1758 - (CARDIIDAE)
- costatum, Pleuropinacoceras costatum Wang & He, 1976 † - (CERATITIDA (UNASSIGNED)) (FOSSIL)
- costatum, Cerithium costatum A. Adams in G.B. II Sowerby, 1855 - syn of: Colina macrostoma (R.B. Hinds, 1844) - (CERITHIIDAE)
- costatum, Lecointriceras costatum J. Kennedy & al., 1980 † - (COLLIGNONICERATIDAE) (FOSSIL)
- costatum, Yabeiceras costatum M. Collignon, 1965 † - (COLLIGNONICERATIDAE) (FOSSIL)
- costatum, Conocardium costatum Cresswell, 1893 † - syn of: Cartericardia costata (Cresswell, 1893 †) - (CONOCARDIIDAE) (FOSSIL)
- costatum, Vexillum costatum (J.F. Gmelin, 1791) - (COSTELLARIIDAE)
- costatum, Craspedopoma costatum (R.J. Shuttleworth, 1852) - (CRASPEDOPOMATIDAE)
- costatum, Quasicravenoceras costatum Ruzhentsev & Bogoslovskaya, 1971 † - (CRAVENOCERATIDAE) (FOSSIL)
- costatum, Moremanoceras costatum Cobban & al., 1989 † - (DESMOCERATIDAE) (FOSSIL)
- costatum, Discoceras costatum Rasmussen & Surlyk, 2012 † - (DISCOCERATIDAE) (FOSSIL)
- costatum, Allorisma costatum F.B. Meek & A.H. Worthen, 1869 † - (EDMONDIIDAE) (FOSSIL)
- costatum, Annoceras costatum Flower, 1964 † - (ELLESMEROCERATIDAE) (FOSSIL)
- costatum, Zospeum costatum C. Freyer, 1855 - syn of: Zospeum spelaeum costatum (E.A. Rossmässler, 1839) - (ELLOBIIDAE)
- costatum, Zospeum spelaeum costatum (E.A. Rossmässler, 1839) - (ELLOBIIDAE)
- costatum, Platyteichum costatum G.B. Campbell, 1953 † - (GOSSELETINIDAE) (FOSSIL)
- costatum, Hammatoceras costatum Gabilly 1973 † - (HAMMATOCERATIDAE) (FOSSIL)
- costatum, Cadomoceras costatum Buckman † - (HAPLOCERATIDAE) (FOSSIL)
- costatum, Haplotrema costatum A.G. Smith, 1957 - (HAPLOTREMATIDAE)
- costatum, Heteroceras emericianum costatum (Rouchadze, 1933 †) - (HETEROCERATIDAE) (FOSSIL)
- costatum, Tiltoniceras costatum Buckman, 1913 † - (HILDOCERATIDAE) (FOSSIL)
- costatum, Anadesmoceras costatum R. Casey, 1966 † - (HOPLITIDAE) (FOSSIL)
- costatum, Kirsoceras costatum (E. Perna, 1914 †) - (KIRSOCERATIDAE) (FOSSIL)
- costatum, Beaniceras costatum Buckman, 1919 † - (LIPAROCERATIDAE) (FOSSIL)
- costatum, Bransonoceras costatum (J.K. Zhao & Zheng, 1977 †) - (METALEGOCERATIDAE) (FOSSIL)
- costatum, Pericycloceras costatum J.K. Zhao & Zheng, 1977 † - syn of: Bransonoceras costatum (J.K. Zhao & Zheng, 1977 †) - (METALEGOCERATIDAE) (FOSSIL)
- costatum, Anotoceras costatum Wang & C. Chen, 1979 † - (OTOCERATIDAE) (FOSSIL)
- costatum, Oxytoma costatum (Townsend, 1813 †) - (OXYTOMIDAE) (FOSSIL)
- costatum, Phragmoceras costatum Hedstrom, 1917 † - (PHRAGMOCERATIDAE) (FOSSIL)
- costatum, Ancylus costatum A.E.J. Férussac, 1822 - syn of: Ancylus fluviatilis O.F. Müller, 1774 - (PLANORBIDAE)
- costatum, Pentagonoceras costatum J.K. Zhao & al., 1978 † - (PLEURONODOCERATIDAE) (FOSSIL)
- costatum, Qianjiangoceras costatum J.K. Zhao & al., 1978 † - (PLEURONODOCERATIDAE) (FOSSIL)
- costatum, Triton costatum F.C. Meuschen, 1787 - syn of: Ranularia caudata (J.F. Gmelin, 1791) - (RANELLIDAE)
- costatum, Monoplex costatum I. von Born, 1778 - syn of: Monoplex parthenopeus (C.U.A. von Salis-Marschlins, 1793) - (RANELLIDAE)
- costatum, Sorinoceras costatum Flower, 1963 † - (SCYPHOCERATIDAE) (FOSSIL)
- costatum, Tonna costatum T. Iwakawa, 1919 - syn of: Tonna tessellata (J.B.P.A. Lamarck, 1816) - (TONNIDAE)
- costatum, Tonna costatum G.W. Tryon, 1885 - syn of: Tonna ampullacea (R.A. Philippi, 1845) - (TONNIDAE)
- costatum, Dolium costatum K.T. Menke, 1828 - syn of: Tonna allium (L.W. Dillwyn, 1817) - (TONNIDAE)
- costatum, Tornoceras costatum E. Perna, 1914 † - syn of: Kirsoceras costatum (E. Perna, 1914 †) - (TORNOCERATIDAE) (FOSSIL)
- costatum, Triainoceras costatum (d'Archiac & de Verneuil, 1842 †) - (TRIAINOCERATIDAE) (FOSSIL)
- costatum, Umbonium costatum (L.C. Kiener, 1839) - (TROCHIDAE)
- costatum, Jasperoceras costatum Ulrich & al., 1942 † - (TROCHOLITIDAE) (FOSSIL)
- costatum, Columbarium pagoda costatum T. Shikama, 1963 - (TURBINELLIDAE)
- costatum, Amuletum costatum N.F. Sohl, 1964 † - (TURRIDAE) (FOSSIL)
- costatum, Coelostemma costatum F.G. Thompson & E.L. Mihalcik, 2011 - (UROCOPTIDAE)
- costatum, Vascoceras costatum (Barber, 1957 †) - (VASCOCERATIDAE) (FOSSIL)
- costatum, Paravascoceras costatum Reyment, 1954 † - syn of: Vascoceras proprium Reyment, 1954 † - (VASCOCERATIDAE) (FOSSIL)
- costatum, Nannovascoceras costatum Renz & J. Alvarez, 1979 † - syn of: Nannovascoceras intermedium Renz & J. Alvarez, 1979 † - (VASCOCERATIDAE) (FOSSIL)
- costatum, Gafrarium costatum P.F. Röding, 1798 - syn of: Gafrarium pectinatum (C. Linnaeus, 1758) - (VENERIDAE)
- costatum fimbriatum, Tonna costatum fimbriatum G.B. I Sowerby, 1827 - syn of: Tonna tessellata (J.B.P.A. Lamarck, 1816) - (TONNIDAE)
- costatum maculatum, Tonna costatum maculatum G.W. Tryon, 1885 - syn of: Tonna dolium (C. Linnaeus, 1758) - (TONNIDAE)
- costatum maculatum, Tonna costatum maculatum J.B.P.A. Lamarck, 1822 - syn of: Tonna dolium (C. Linnaeus, 1758) - (TONNIDAE)
- costatum martini, Dolium costatum martini O. Böttger, 1883 - syn of: Tonna allium (L.W. Dillwyn, 1817) - (TONNIDAE)
- costatum picta, Dolium costatum picta S.C.T. Hanley, 1860 - syn of: Tonna allium (L.W. Dillwyn, 1817) - (TONNIDAE)
- costatus, Ammonites costatus Schlotheim, 1820 † - syn of: Pleuroceras spinatum (J.G. Bruguière, 1789 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- costatus, Colchidites costatus Rouchadze, 1933 † - (ANCYLOCERATIDAE) (FOSSIL)
- costatus, Araeodactylus costatus (W.M. Gabb, 1869 † †) - (APORRHAIDAE) (FOSSIL)
- costatus, Archaeozonites costatus Sandberger, 1875 † - (ARCHAEOZONITIDAE) (FOSSIL)
- costatus, Torinista costatus (M.M. Schepman, 1909) - (ARCHITECTONICIDAE)
- costatus, Heliacus costatus T.A. Garrard, 1977 - syn of: Heliacus caelatus (R.B. Hinds, 1844) - (ARCHITECTONICIDAE)
- costatus, Ctenobactrites costatus Shimanskiy, 1951 † - (BACTRITIDAE) (FOSSIL)
- costatus, Bellerophon costatus Sowerby, 1825 † - (BELLEROPHONTIDAE) (FOSSIL)
- costatus, Bellerophon costatus Trautschold, 1874 † - syn of: Bellerophon subcostatus Fliegel, 1901 † - (BELLEROPHONTIDAE) (FOSSIL)
- costatus, Conulinus ugandae costatus B. Verdcourt, 1985 - (CERASTUIDAE)
- costatus, Tjururpites costatus Shevyrev, 1968 † - (CERATITIDA (UNASSIGNED)) (FOSSIL)
- costatus, Ceratites costatus Oeberg, 1877 † - syn of: Arctoceras blomstrandi (Lindström, 1865 †) - (CERATITIDAE) (FOSSIL)
- costatus, Clypeoceras costatus Vavilov, 1965 † - syn of: Clypeoceratoides gantmani (A.M. Popov, 1961 †) - (CLYPEOCERATIDAE) (FOSSIL)
- costatus, Herrickiceras costatus (Herrick & Johnson, 1900 †) - (COILOPOCERATIDAE) (FOSSIL)
- costatus, Columbites costatus Chao, 1959 † - (COLUMBITIDAE) (FOSSIL)
- costatus, Conus costatus H.S. Holten, 1802 † - (CONIDAE) (FOSSIL)
- costatus, Conus costatus J.F. Gmelin, 1791 - (CONIDAE)
- costatus, Epipallasiceras costatus Spath, 1936 † - (DORSOPLANITIDAE) (FOSSIL)
- costatus, Clavus costatus C. Hedley, 1922 - syn of: Graciliclava costata (C. Hedley, 1922) - (DRILLIIDAE)
- costatus, Pseudonapaeus costatus S. Clessin, 1894 - syn of: Pseudonapaeus leucoptychus (C.M.F. Ancey, 1886) - (ENIDAE)
- costatus, Euconulus costatus H.A. Pilsbry & Y. Hirase, 1905 - (EUCONULIDAE)
- costatus, Euthystylus costatus Wang, 1980 † - (EULIMIDAE) (FOSSIL)
- costatus, Fusus costatus W.v. Hisinger, 1837 - syn of: Boreotrophon clathratus (C. Linnaeus, 1767) - (FASCIOLARIIDAE)
- costatus, Glacidorbis costatus W.F. Ponder & G.J. Avern, 2000 - (GLACIDORBIDAE)
- costatus, Goniatites costatus d'Archiac & de Verneuil, 1842 † - syn of: Triainoceras costatum (d'Archiac & de Verneuil, 1842 †) - (GONIATITIDAE) (FOSSIL)
- costatus, Erycites costatus Merla, 1933 † - (HAMMATOCERATIDAE) (FOSSIL)
- costatus, Securiconus costatus Missarzhevsky, 1989 † - syn of: Securiconus costulatus Missarzhevsky, 1989 † - (HELCIONELLIDAE) (FOSSIL)
- costatus, Actinoceramus concentricus costatus T. Nagao & E. Matsumoto, 1939 † - (INOCERAMIDAE) (FOSSIL)
- costatus, Permophorus costatus (J. Brown, 1841 †) - (KALENTERIDAE) (FOSSIL)
- costatus, Alanites costatus Bucher, 1992 † - (KHVALYNITIDAE) (FOSSIL)
- costatus, Antiguraleus costatus (C. Hedley, 1922) - (MANGELIIDAE)
- costatus, Guraleus costatus C. Hedley, 1922 - syn of: Antiguraleus costatus (C. Hedley, 1922) - (MANGELIIDAE)
- costatus, Owenites costatus Chao, 1959 † - syn of: Owenites koeneni A. Hyatt & Smith, 1905 † - (MELAGATHICERATIDAE) (FOSSIL)
- costatus, Cyclites costatus E.L. Yochelson, 1956 † - (MICRODOMATIDAE) (FOSSIL)
- costatus, Glossomyophorus costatus Massse & al. 1984 † - (MONOPLEURIDAE) (FOSSIL)
- costatus, Murex costatus T. Pennant, 1777 - syn of: Mangelia costata (T. Pennant, 1777) - (MURICIDAE)
- costatus, Murex costatus I. von Born, 1778 - syn of: Monoplex parthenopeus (C.U.A. von Salis-Marschlins, 1793) - (MURICIDAE)
- costatus, Murex costatus J.F. Gmelin, 1791 - syn of: Siratus senegalensis (J.F. Gmelin, 1791) - (MURICIDAE)
- costatus, Magilus costatus G.B. II Sowerby, 1872 - syn of: Magilus antiquus P.D. Montfort, 1810 - (MURICIDAE)
- costatus, Phos costatus W.M. Gabb, 1873 † - syn of: Pallacera costata (W.M. Gabb, 1873 †) - (NASSARIIDAE) (FOSSIL)
- costatus, Notabilitus costatus A.V. Sysoev, 1968 † - (NOTABILITIDAE) (FOSSIL)
- costatus, Plagiodontes daedaleus costatus P.H. Scott, 1952 - (ODONTOSTOMIDAE)
- costatus, Oxychilus costatus F. Riedel, 1989 - (OXYCHILIDAE)
- costatus, Menuites costatus J. Kennedy & Summesberger, 1986 † - (PACHYDISCIDAE) (FOSSIL)
- costatus, Paracibolites costatus I. Hayasaka, 1947 † - syn of: Paraceltites elegans Girty, 1909 † - (PARACELTITIDAE) (FOSSIL)
- costatus, Borestus costatus E.K. Yoo, 1988 † - (PHYMATOPLEURIDAE) (FOSSIL)
- costatus, Pileolus costatus A.V.M.D. D'Orbigny, 1850 † - syn of: Pileolus versicostatus Buvignier, 1852 † - (PILEOLIDAE) (FOSSIL)
- costatus, Hoplitoplacenticeras plasticus costatus Paulcke, 1907 † - (PLACENTICERATIDAE) (FOSSIL)
- costatus, Fossarus costatus G.B. Brocchi, 1814 - syn of: Clathrella clathrata (R.A. Philippi, 1844) - (PLANAXIDAE)
- costatus, Gyraulus costatus (E. Klein, 1846 ) - (PLANORBIDAE)
- costatus, Dyeria costatus (M.J. James, 1872 †) - (PLATYCERATIDAE) (FOSSIL)
- costatus, Tropigastrites costatus Tozer, 1994 † - (PROTEUSITIDAE) (FOSSIL)
- costatus, Neoaganides costatus Yang & Yang, 1992 † - (PSEUDOHALORITIDAE) (FOSSIL)
- costatus, Qinglongites costatus Zheng, 1981 † - (PSEUDOHALORITIDAE) (FOSSIL)
- costatus, Exilia costatus W.H. Dall, 1890 - syn of: Latiromitra costata (W.H. Dall, 1890) - (PTYCHATRACTIDAE)
- costatus, Ischnopupoides minimus costatus W.A. Biese, 1960 - (PUPILLIDAE)
- costatus, Monoplex costatus I. von Born, 1778 - syn of: Monoplex parthenopeus (C.U.A. von Salis-Marschlins, 1793) - (RANELLIDAE)
- costatus, Alurites costatus Ruzhentsev & Bogoslovskaya, 1975 † - (RETICULOCERATIDAE) (FOSSIL)
- costatus, Vitellidelos costatus J. Stanisic, 2010 - (RHYTIDIDAE)
- costatus, Priodiscus costatus J. Gerlach, 1995 - (RHYTIDIDAE)
- costatus, Sanguinolites costatus Morris, 1845 † - syn of: Stutchburia costata (Morris, 1845 †) - (SANGUINOLITIDAE) (FOSSIL)
- costatus, Solen costatus T. Say, 1822 - syn of: Siliqua costata (T. Say, 1822) - (SOLENIDAE)
- costatus, Spondylus costatus J.B.P.A. Lamarck, 1819 - syn of: Spondylus foliaceus K. Schreibers, 1793 - (SPONDYLIDAE)
- costatus, Strobilops costatus (S. Clessin, 1877 †) - (STROBILOPSIDAE) (FOSSIL)
- costatus, Lobatus costatus (J.F. Gmelin, 1791) - (STROMBIDAE)
- costatus, Strombus costatus J.F. Gmelin, 1791 - syn of: Lobatus costatus (J.F. Gmelin, 1791) - (STROMBIDAE)
- costatus, Sinoceltites costatus J.K. Zhao & al., 1978 † - (TAPASHANITIDAE) (FOSSIL)
- costatus, Pseudostephanites costatus J.K. Zhao & X.L. Liang, 1965 † - (TAPASHANITIDAE) (FOSSIL)
- costatus, Tapashanites costatus J.K. Zhao, X.L. Liang, & Z.G. Zheng, 1978 † - (TAPASHANITIDAE) (FOSSIL)
- costatus, Hemisinus costatus Cooke, 1919 † - (THIARIDAE) (FOSSIL)
- costatus, Mesohimavatites costatus Tozer, 1994 † - (TIBETITIDAE) (FOSSIL)
- costatus, Arctoarpadites costatus (Tozer, 1961 †) - (TRACHYCERATIDAE) (FOSSIL)
- costatus, Trimusculus costatus (C.F.F. von Krauss, 1848) - (TRIMUSCULIDAE)
- costatus, Plectolites costatus Flower, 1968 † - syn of: Plectolites incipiens (Barrande, 1870 †) - (TROCHOLITIDAE) (FOSSIL)
- costatus, Turbo costatus J. Adams, 1797 - syn of: Manzonia crassa (F. Kanmacher, 1798) - (TURBINIDAE)
- costatus, Turrilites costatus J.B.P.A. Lamarck, 1801 † - (TURRILITIDAE) (FOSSIL)
- costatus, Microceramus costatus C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- costatus, Valvata costatus Taner, 1974 † - (VALVATIDAE) (FOSSIL)
- costatus, Cuneus costatus J.K. Megerle Von Mühlfeld, 1811 - syn of: Sunetta meroe (C. Linnaeus, 1758) - (VENERIDAE)
- costatus, Viviparus costatus (J.R.C. Quoy & J.P. Gaimard, 1832) - (VIVIPARIDAE)
- costatus aguayoi, Strombus costatus aguayoi M.L. Jaume & Valle, 1947 - syn of: Lobatus costatus (J.F. Gmelin, 1791) - (STROMBIDAE)
- costatus griffini, Strombus costatus griffini E.J. Petuch, 1994 - syn of: Lobatus costatus (J.F. Gmelin, 1791) - (STROMBIDAE)
- costatus spectabilis, Lobatus costatus spectabilis A.H. Verrill, 1950 - (STROMBIDAE)
- Costavarix, Genus Costavarix F.C. Baker, 1935 (OLEACINIDAE)
- Costazygia, Genus Costazygia Grόndel, 1999 (POMMEROZYGIIDAE) (FOSSIL)
- costei, Pycnodonte costei Coquand, 1869 † - (GRYPHAEIDAE) (FOSSIL)
- costei, Dunkeria costei L. de Folin, 1873 - (PYRAMIDELLIDAE)
- costeiensis, Rissoa costeiensis T. Kowalke & M. Harzhauser, 2004 † - (RISSOIDAE) (FOSSIL)
- Costeina, Genus Costeina Vialov, 1965 (GRYPHAEIDAE) (FOSSIL)
- costelata, Helix pomatia costelata W. Kobelt, 1906 - (HELICIDAE)
- Costella, syn of: Subgenus Physa (Costatella) W.H. Dall, 1870 (PHYSIDAE)
- Costellacesta, Genus Costellacesta Kauffman, 1964 (LIMIDAE) (FOSSIL)
- Costellamussiopecten, Genus Costellamussiopecten Bongrain, Cahuzac & Freneix, 1994 (PECTINIDAE) (FOSSIL)
- Costellaria, Subgenus Vexillum (Costellaria) W.J. Swainson, 1840 (COSTELLARIIDAE)
- costellaria, Mangelia costellaria P. Nyst, 1836 † - (MANGELIIDAE) (FOSSIL)
- COSTELLARIIDAE MacDonald, 1860 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-NEOGASTROPODA [Order]-TURBINELLOIDEA [Superfamily])
- costellarioides, Leiocithara costellarioides R.N. Kilburn, 1992 - (MANGELIIDAE)
- costellaris, Vexillum subdivisum costellaris (J.B.P.A. Lamarck, 1822) - (COSTELLARIIDAE)
- costellaris, Pleuroloba costellaris (H. Adams & A. Adams, 1854) - (ELLOBIIDAE)
- costellaris, Mitra costellaris J.B.P.A. Lamarck, 1811 - syn of: Vexillum subdivisum (J.F. Gmelin, 1791) - (MITRIDAE)
- costellaris, Stenomelania costellaris (I. Lea, 1850) - (THIARIDAE)
- costellaris, Microceramus costellaris (J. Gundlach in L. Pfeiffer, 1863) - (UROCOPTIDAE)
- costellaris, Torrecoptis costellaris C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- costellaris sinaloensis, Microceramus costellaris sinaloensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- costellata, Barbatia costellata Tiwari, 2001 † - (ARCIDAE) (FOSSIL)
- costellata, Borsonia costellata A. von Koenen, 1889 † - (BORSONIIDAE) (FOSSIL)
- costellata, Pseudoneptunea costellata (J.P.S. Grateloup, 1847 †) - (BUCCINIDAE) (FOSSIL)
- costellata, Trochita costellata R.A. Philippi, 1845 - syn of: Trochita pileus (J.B.P.A. Lamarck, 1822) - (CALYPTRAEIDAE)
- costellata, Calyptraea costellata R.A. Philippi, 1845 - syn of: Trochita pileus (J.B.P.A. Lamarck, 1822) - (CALYPTRAEIDAE)
- costellata, Trichotropis costellata J.P.Y. Couthouy, 1838 - syn of: Ariadnaria borealis (W.J. Broderip & G.B. I Sowerby, 1829) - (CAPULIDAE)
- costellata, Danilia costellata (O.G. Costa, 1861) - (CHILODONTIDAE)
- costellata, Balea costellata (N.H. Odhner, 1960) - (CLAUSILIIDAE)
- costellata, Omanillya costellata H. Nordsieck, 2015 † - (CLAUSILIIDAE) (FOSSIL)
- costellata, Thaumatoptyx costellata H. Nordsieck, 2005 - (CLAUSILIIDAE)
- costellata, Anachis costellata (W.J. Broderip & G.B. I Sowerby, 1829) - (COLUMBELLIDAE)
- costellata, Corbula costellata G.P. Deshayes, 1835 - syn of: Cardiomya costellata (G.P. Deshayes, 1835) - (CORBULIDAE)
- costellata, Vexillum costellata J.B.G.M. Bory De Saint-Vincent, 1827 - syn of: Vexillum subdivisum costellaris (J.B.P.A. Lamarck, 1822) - (COSTELLARIIDAE)
- costellata, Cardiomya costellata (G.P. Deshayes, 1835) - (CUSPIDARIIDAE)
- costellata, Cymaclymenia costellata (G.G. Münster, 1834 †) - (CYMACLYMENIIDAE) (FOSSIL)
- costellata, Melanella costellata (P. Dautzenberg & H. Fischer, 1897) - (EULIMIDAE)
- costellata, Flickia costellata M. Collignon, 1964 † - (FLICKIIDAE) (FOSSIL)
- costellata, Pandospira costellata (C. Gemmellaro, 1889 †) - (GOSSELETINIDAE) (FOSSIL)
- costellata, Lophotheca costellata Z.X. Qian, 1978 † - (GRACILITHECIDAE) (FOSSIL)
- Costellata, Subgenus Neopycnodonta (Costellata) Garcia & Levy, 1983 (GRYPHAEIDAE) (FOSSIL)
- costellata, Gryphaea costellata (J.H.F. Douvillé, 1916 †) - (GRYPHAEIDAE) (FOSSIL)
- costellata, Liogryphaea costellata J.H.F. Douvillé, 1916 † - syn of: Gryphaea costellata (J.H.F. Douvillé, 1916 †) - (GRYPHAEIDAE) (FOSSIL)
- costellata, Helix costellata C.L.F. von Sandberger, 1875 - syn of: Vallonia enniensis (P.V. Gredler, 1856) - (HELICIDAE)
- costellata, Helix costellata W. Kobelt, 1906 - syn of: Helix pomatia C. Linnaeus, 1758 - (HELICIDAE)
- costellata, Alaba costellata (J.P.S. Grateloup, 1838 †) - (LITIOPIDAE) (FOSSIL)
- costellata, Leptogyra costellata A. Warén & P. Bouchet, 2009 - (MELANODRYMIIDAE)
- costellata, Melanopsis costellata A.E.J. Férussac, 1823 - syn of: Melanopsis cariosa (C. Linnaeus, 1767) - (MELANOPSIDAE)
- costellata, Perna costellata T.A. Conrad, 1837 - syn of: Isognomon perna (C. Linnaeus, 1767) - (MYTILIDAE)
- costellata, Nuculana costellata (G.B. I Sowerby, 1833) - (NUCULANIDAE)
- costellata, Costelloleda costellata G.B. I Sowerby, 1833 - syn of: Nuculana costellata (G.B. I Sowerby, 1833) - (NUCULANIDAE)
- costellata, Nucula costellata G.B. I Sowerby, 1833 - syn of: Nuculana costellata (G.B. I Sowerby, 1833) - (NUCULIDAE)
- costellata, Ovula costellata J.B.P.A. Lamarck, 1810 - (OVULIDAE)
- costellata, Chlamys costellata A.E. Verrill & K.J. Bush in A.E. Verrill, 1897 - syn of: Chlamys islandica (O.F. Müller, 1776) - (PECTINIDAE)
- costellata, Pholas costellata J. Morris & J. Lycett, 1855 † - syn of: Girardotia costellata (J. Morris & J. Lycett, 1855 †) - (PHOLADIDAE) (FOSSIL)
- costellata, Girardotia costellata (J. Morris & J. Lycett, 1855 †) - (PHOLADOMYOIDEA (UNASSIGNED)) (FOSSIL)
- costellata, Helminthozyga costellata Hoare & Sturgeon, 1978 † - (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- costellata, Electroma costellata J.B.P.A. Lamarck, 1819 - syn of: Electroma alacorvi (L.W. Dillwyn, 1817) - (PTERIIDAE)
- costellata, Isognomon perna costellata T.A. Conrad, 1843 - (PTERIIDAE)
- costellata, Chrysallida costellata A. Adams, 1861 - (PYRAMIDELLIDAE)
- costellata, Raphitoma costellata (J.B.P.A. Lamarck, 1804 †) - (RAPHITOMIDAE) (FOSSIL)
- costellata, Rissoa costellata J.P.S. Grateloup, 1828 † - syn of: Gibborissoa varicosa (B. de Basterot, 1825 †) - (RISSOIDAE) (FOSSIL)
- costellata, Rostellaria costellata Buvignier, 1843 † - (ROSTELLARIIDAE) (FOSSIL)
- costellata, Solemya costellata (McCoy) † - (SOLEMYIDAE) (FOSSIL)
- costellata, Temnotropis costellata C. Gemmellaro, 1889 † - syn of: Pandospira costellata (C. Gemmellaro, 1889 †) - (TEMNOTROPIDAE) (FOSSIL)
- costellata, Terebra costellata J. de C. Sowerby, 1846 † - (TEREBRIDAE) (FOSSIL)
- costellata, Melania costellata J.B.P.A. Lamarck, 1804 † - syn of: Diastoma costellatum (J.B.P.A. Lamarck, 1804 †) - (THIARIDAE) (FOSSIL)
- costellata, Pleurotoma costellata J.B.P.A. Lamarck, 1825 † - syn of: Pleurotomoides subcostellatus (A.V.M.D. D'Orbigny, 1852 †) - (TURRIDAE) (FOSSIL)
- costellata, Vallonia costellata C.L.F. von Sandberger, 1875 - syn of: Vallonia costata (O.F. Müller, 1774) - (VALLONIIDAE)
- costellata, Zeradina costellata (F.W. Hutton, 1885 †) - (VANIKORIDAE) (FOSSIL)
- costellata, Venus costellata W.J. Broderip & G.B. I Sowerby, 1835 - syn of: Leukoma antiqua (P.P. King, 1832) - (VENERIDAE)
- costellata, Petricola costellata J.B.P.A. Lamarck, 1818 - syn of: Petricola lithophaga (A. Retzius, 1788) - (VENERIDAE)
- costellata anomala, Alaba costellata anomala (K.E.I. von Eichwald, 1850 †) - (LITIOPIDAE) (FOSSIL)
- costellata bicristata, Raphitoma costellata bicristata A.E.M. Cossmann & G. Pissarro, 1913 † - (RAPHITOMIDAE) (FOSSIL)
- costellata capellinii, Raphitoma costellata capellinii G.P. Deshayes, 1865 - (RAPHITOMIDAE)
- costellata corpulenta, Cardiomya costellata corpulenta W.H. Dall, 1881 - (CUSPIDARIIDAE)
- costellata lactea, Cuspidaria costellata lactea J.G. Jeffreys, 1865 - syn of: Cardiomya costellata (G.P. Deshayes, 1835) - (CUSPIDARIIDAE)
- costellata pachyderma, Anachis costellata pachyderma P.P. Carpenter, 1857 - syn of: Anachis scalarina (G.B. I Sowerby, 1832) - (COLUMBELLIDAE)
- costellata ventripotens, Alaba costellata ventripotens A.E.M. Cossmann & M.A. Peyrot † - syn of: Alaba costellata (J.P.S. Grateloup, 1838 †) - (LITIOPIDAE) (FOSSIL)
- costellatum, Ancyloceras costellatum A. von Koenen, 1902 † - (ANCYLOCERATIDAE) (FOSSIL)
- costellatum, Buccinum costellatum J.P.S. Grateloup, 1845 † - syn of: Lyrofusus costellatus (J.P.S. Grateloup, 1845 †) - (BUCCINIDAE) (FOSSIL)
- costellatum, Cardioceras costellatum S.S. Buckman, 1927 † - (CARDIOCERATIDAE) (FOSSIL)
- costellatum, Cerion tridentatum costellatum H.A. Pilsbry, 1946 - (CERIONIDAE)
- costellatum, Diastoma costellatum (J.B.P.A. Lamarck, 1804 †) - (DIASTOMATIDAE) (FOSSIL)
- costellatum, Cadomoceras costellatum Buckman † - (HAPLOCERATIDAE) (FOSSIL)
- costellatum, Acrocoelum costellatum (G.P. Deshayes, 1832 †) - (MATHILDIDAE) (FOSSIL)
- costellatum, Ovula costellatum J.B.P.A. Lamarck, 1810 - syn of: Ovula costellata J.B.P.A. Lamarck, 1810 - (OVULIDAE)
- costellatus, Lyrofusus costellatus (J.P.S. Grateloup, 1845 †) - (BUCCINIDAE) (FOSSIL)
- costellatus, Bostryx costellatus M.I. Hylton-Scott, 1971 - (BULIMULIDAE)
- costellatus, Bulimus costellatus J.P.S. Grateloup, 1828 † - syn of: Gibborissoa varicosa (B. de Basterot, 1825 †) - (BULIMULIDAE) (FOSSIL)
- costellatus, Clymenia costellatus Münster, 1834 † - syn of: Cymaclymenia costellata (G.G. Münster, 1834 †) - (CLYMENIIDAE) (FOSSIL)
- costellatus, Colobocephalus costellatus (M. Sars, 1870) - (COLPODASPIDIDAE)
- costellatus, Conus costellatus Grateloup, 1835 † - (CONIDAE) (FOSSIL)
- costellatus, Euomphalus costellatus (McCoy) † - (EUOMPHALIDAE) (FOSSIL)
- costellatus, Hipponix costellatus P.P. Carpenter, 1856 - (HIPPONICIDAE)
- costellatus, Inoceramus costellatus Woods, 1904 † - (INOCERAMIDAE) (FOSSIL)
- costellatus, Lirapex costellatus A. Warén & P. Bouchet, 2001 - (PELTOSPIRIDAE)
- costellatus, Nekewis costellatus A. Oleinik, 1991 † - (PERISSITYIDAE) (FOSSIL)
- costellatus, Sanguinolites costellatus (F. McCoy, 1851 †) - (SANGUINOLITIDAE) (FOSSIL)
- costellifer, Eocantharus costellifer (G.P. Deshayes, 1834 †) - (BUCCINIDAE) (FOSSIL)
- costellifer, Radioconus costellifer M.I. Hylton-Scott, 1957 - (HELICODISCIDAE)
- costellifer, Murex costellifer J. de C. Sowerby, 1832 - syn of: Admete viridula (O. Fabricius, 1780) - (MURICIDAE)
- costellifera, Cancellaria costellifera Sowerby, 1818 † - (CANCELLARIIDAE) (FOSSIL)
- costellifera, Medlicottia costellifera Miller & Furnish, 1940 † - (MEDLICOTTIIDAE) (FOSSIL)
- costellifera, Nassa costellifera A. Adams, 1853 - syn of: Nassarius margaritifer (R.W. Dunker, 1847) - (NASSARIIDAE)
- costellifera, Oxymeris costellifera (W.H. Pease, 1869) - (TEREBRIDAE)
- costellifera, Terebra costellifera W.H. Pease, 1869 - syn of: Oxymeris costellifera (W.H. Pease, 1869) - (TEREBRIDAE)
- costellifera, Timoclea costellifera (A. Adams & L.A. Reeve, 1850) - (VENERIDAE)
- costellifera, Paramoria costellifera (R. Tate, 1889 †) - (VOLUTIDAE) (FOSSIL)
- Costellina, syn of: Genus Lanzaia . Brusina, 1906 (HYDROBIIDAE)
- Costellipitar, Subgenus Pitar (Costellipitar) T. Habe, 1951 (VENERIDAE)
- Costelloleda, Subgenus Nuculana (Costelloleda) L.G. Hertlein & A. Strong, 1940 (NUCULANIDAE)
- costeminens, Spinosipella costeminens (J. Poutiers, 1981) - (VERTICORDIIDAE)
- Costentalina, Genus Costentalina S.D. Chistikov, 1982 (ENTALINIDAE)
- Costentolium, Genus Costentolium Freneix, 1980 (PTERIIDA (UNASSIGNED)) (FOSSIL)
- Costicamptonectes, Subgenus Camptonectes (Costicamptonectes) Fόrsich, 1982 (PECTINIDAE) (FOSSIL)
- costicapitata, Pseudexomilus costicapitata (J.C. Verco, 1909) - (HORAICLAVIDAE)
- costicardia, Cardioceras costicardia Buckman, 1926 † - (CARDIOCERATIDAE) (FOSSIL)
- costicillatum, Fuciniceras costicillatum (Fucini, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- costicillatum detractum, Fuciniceras costicillatum detractum (A.V.M.D. D'Orbigny, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- costicollis, Alopia canescens costicollis M. von Kimakowicz, 1894 - (CLAUSILIIDAE)
- costicollis, Grandinenia fuchsi costicollis H. Nordsieck, 2007 - (CLAUSILIIDAE)
- costicollis, Albinaria inauris costicollis H. Nordsieck, 1993 - (CLAUSILIIDAE)
- costicrenata, Glyphostoma costicrenata A.E.M. Cossmann, 1900 † - (CLATHURELLIDAE) (FOSSIL)
- costidensa, Bradfordia costidensa Imlay, 1964 † - (OPPELIIDAE) (FOSSIL)
- costidensus, Cranocephalites costidensus Imlay, 1962 † - (CADOCERATIDAE) (FOSSIL)
- Costidiscus, Subgenus Macroscaphites (Costidiscus) Uhlig, 1883 (MACROSCAPHITIDAE) (FOSSIL)
- costifer, Scutalus costifer H.A. Pilsbry, 1932 - (BULIMULIDAE)
- costifer, Amphidromus costifer E.A. Smith, 1895 - (CAMAENIDAE)
- costifer, Mauidrillia costifer (H.H. Suter, 1917 †) - (HORAICLAVIDAE) (FOSSIL)
- costifer naggsi, Scutalus costifer naggsi A.S.H. Breure, 1978 - (BULIMULIDAE)
- costifera, Apaturris costifera W.L. May, 1920 - (BORSONIIDAE)
- costifera, Cancellaria costifera G.B. I Sowerby, 1832 - syn of: Trigonostoma costiferum (G.B. I Sowerby, 1832) - (CANCELLARIIDAE)
- costifera, Hirsonella costifera J.C. Fischer, 1969 † - (CERITHIOIDEA (UNASSIGNED)) (FOSSIL)
- costifera, Euphaedusa costifera H. Nordsieck, 2001 - (CLAUSILIIDAE)
- costifera, Stereophaedusa costifera J.T. Kuroda & Is. Taki, 1944 - (CLAUSILIIDAE)
- costifera, Itala costifera C.A. Westerlund, 1878 - syn of: Charpentieria itala latestriata (H.C. Küster, 1850) - (CLAUSILIIDAE)
- costifera, Armenica laevicollis costifera H. Nordsieck, 1994 - (CLAUSILIIDAE)
- costifera, Cheilea costifera (M.M. Schepman, 1909) - (HIPPONICIDAE)
- costifera, Pseudofagotia costifera V.V. Anistratenko, 1993 † - (MELANOPSIDAE) (FOSSIL)
- costifera, Mitromorpha costifera W.L. May, 1920 - syn of: Apaturris costifera W.L. May, 1920 - (MITROMORPHIDAE)
- costifera, Goniobasis costifera (L.A. Reeve, 1861) - (PLEUROCERIDAE)
- costifera, Epideira costifera C.F. Laseron, 1954 - syn of: Epidirona tuberculata C.F. Laseron, 1954 - (PSEUDOMELATOMIDAE)
- costifera, Turbonilla costifera E.A. Smith, 1872 - (PYRAMIDELLIDAE)
- costifera, Arcteuglesa costifera L.A. Prozorova & al., 1996 - syn of: Pisidium chankensis V.I. Zhadin, 1952 - (SPHAERIIDAE)
- costiferum, Trigonostoma costiferum (G.B. I Sowerby, 1832) - (CANCELLARIIDAE)
- costiferum, Cerithium costiferum G.B. II Sowerby, 1855 - syn of: Colina macrostoma (R.B. Hinds, 1844) - (CERITHIIDAE)
- costiferum, Buccinofusus costiferum (Wood, 1848 †) - (FASCIOLARIIDAE) (FOSSIL)
- costiferum, Trophon costiferum Wood, 1848 † - syn of: Buccinofusus costiferum (Wood, 1848 †) - (MURICIDAE) (FOSSIL)
- costiferum, Paraschistoceras costiferum Plummer & P.H. Scott, 1937 † - (SCHISTOCERATIDAE) (FOSSIL)
- costiferus, Sipho costiferus H.J. Posselt, 1898 - syn of: Turrisipho lachesis (O.A.L. Mörch, 1869) - (BUCCINIDAE)
- costiger, Hemiconus costiger (A.E.M. Cossmann, 1886 †) - (CONIDAE) (FOSSIL)
- costigera, Mysorella costigera (H.C. Küster, 1852) - (BITHYNIIDAE)
- costigera, Balea costigera (N.H. Odhner, 1960) - (CLAUSILIIDAE)
- costigera, Grandinenia gastrum costigera H. Nordsieck, 2005 - (CLAUSILIIDAE)
- costigera, Laciniaria plicata costigera H. Nordsieck, 2008 - (CLAUSILIIDAE)
- costigera, Punctiscala costigera (K.H.J. Thiele, 1925) - (EPITONIIDAE)
- costigera, Epitonium costigera K.H.J. Thiele, 1925 - syn of: Punctiscala costigera (K.H.J. Thiele, 1925) - (EPITONIIDAE)
- costigera, Sonninia costigera Buckman † - (SONNINIIDAE) (FOSSIL)
- costigera, Camponaxis costigera Grundel, 2003 † - (TOFANELLIDAE) (FOSSIL)
- costigera curta, Mysorella costigera curta G. Nevill - (BITHYNIIDAE)
- costigerella, Truncatellina costigerella W.A. Lindholm, 1926 - syn of: Truncatellina cylindrica (A.E.J. Férussac, 1807) - (VERTIGINIDAE)
- costigerum, Cerithium costigerum L.É.S. Piette † - syn of: Paracerithium costigerum (L.É.S. Piette †) - (CERITHIIDAE) (FOSSIL)
- costigerum, Hammatoceras costigerum Buckman, 1903 † - (HAMMATOCERATIDAE) (FOSSIL)
- costigerum, Costigrammoceras costigerum Buckman, 1926 † - syn of: Grammoceras penestriatulum Buckman, 1902 † - (HILDOCERATIDAE) (FOSSIL)
- costigerum, Paracerithium costigerum (L.É.S. Piette †) - (PROCERITHIIDAE) (FOSSIL)
- Costigervillia, Genus Costigervillia Cox, 1948 (BAKEVELLIIDAE) (FOSSIL)
- Costigo, Genus Costigo O. Bφttger, 1891 (VERTIGINIDAE)
- Costigrammoceras, syn of: Genus Grammoceras D'Orbigny, 1900 (HILDOCERATIDAE) (FOSSIL)
- Costigulella, Subgenus Gulella (Costigulella) H.A. Pilsbry, 1919 (STREPTAXIDAE)
- Costigymnites, Genus Costigymnites Krystyn & Tatzreiter, 1991 (GYMNITIDAE) (FOSSIL)
- Costileioceras, Genus Costileioceras (GRAPHOCERATIDAE) (FOSSIL)
- costillae, Theba costillae (R. Hutterer, 1990) - (HELICIDAE)
- Costimitoceras, Genus Costimitoceras Vφhringer, 1960 (GATTENDORFIIDAE) (FOSSIL)
- Costipelagiella, Genus Costipelagiella Hornύ, 1964 (PELAGIELLIDAE) (FOSSIL)
- Costipellagiella, syn of: Genus Costipelagiella Hornύ, 1964 (PELAGIELLIDAE) (FOSSIL)
- costisparsum, Holcophylloceras costisparsum Imlay, 1964 † - (PHYLLOCERATIDAE) (FOSSIL)
- costispunctata, Pusula costispunctata (G.B. II Sowerby, 1870) - (TRIVIIDAE)
- costispunctata, Pusula costispunctata G.B. II Sowerby, 1870 - syn of: Pusula costispunctata (G.B. II Sowerby, 1870) - (TRIVIIDAE)
- costistriatum, Pseudolioceras costistriatum Westermann, 1969 † - (HILDOCERATIDAE) (FOSSIL)
- costlowi, Bathybela costlowi E.J. Petuch, 1974 - syn of: Bathybela tenelluna (É.A.A. Locard, 1897) - (RAPHITOMIDAE)
- Costoanachis, Genus Costoanachis F. Sacco, 1890 (COLUMBELLIDAE)
- Costocyrena, Genus Costocyrena Hayami, 1965 (NEOMIODONTIDAE) (FOSSIL)
- Costokidderia, Genus Costokidderia H.J. Finlay, 1926 (CYAMIIDAE)
- Costolimnaea, syn of: Genus Stagnicola W.E. Leach in J.G. Jeffreys, 1830 (LYMNAEIDAE)
- Costomargarites, Genus Costomargarites J.H. McLean, 1995 (TROCHIDAE)
- Costopisidium, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- Costorbis, Subgenus Anisus (Costorbis) W.A. Lindholm, 1926 (PLANORBIDAE)
- costornatum, Costamanticoceras costornatum (Clausen, 1969 †) - (GEPHUROCERATIDAE) (FOSSIL)
- costosomuricatus, Lobatus costosomuricatus O.A.L. Mörch, 1852 - syn of: Lobatus raninus (J.F. Gmelin, 1791) - (STROMBIDAE)
- costosomuricatus, Strombus costosomuricatus O.A.L. Mörch, 1852 - syn of: Lobatus raninus (J.F. Gmelin, 1791) - (STROMBIDAE)
- costosoplicata, Patella costosoplicata O.A.L. Mörch, 1853 - syn of: Patella ferruginea J.F. Gmelin, 1791 - (PATELLIDAE)
- costosum, Costileioceras costosum (F.A. von Quenstedt, 1886 †) - (GRAPHOCERATIDAE) (FOSSIL)
- costosus, Hyphoplites costosus C.W. Wright & E.V. Wright, 1949 † - (HOPLITIDAE) (FOSSIL)
- Costosyrnola, Subgenus Syrnola (Costosyrnola) C.R. Laws, 1937 (PYRAMIDELLIDAE)
- costotuberculatum, Polymorphites costotuberculatum Rakús & Guex, 2002 † - syn of: Sphenoacanthites costotuberculatum (Rakús & Guex, 2002 †) - (POLYMORPHITIDAE) (FOSSIL)
- costotuberculatum, Sphenoacanthites costotuberculatum (Rakús & Guex, 2002 †) - (SINUICERATIDAE) (FOSSIL)
- costousus, Coptochetus costousus G.P. Deshayes † - (BUCCINIDAE) (FOSSIL)
- Costovalvata, syn of: Genus Valvata O.F. Mόller, 1774 (VALVATIDAE)
- Costoxychilus, Subgenus Oxychilus (Costoxychilus) Neubert, 1998 (OXYCHILIDAE)
- costula, Dumortieria costula Reinecke, 1818 † - syn of: Vacekia striata Henriques, 2012 † - (HILDOCERATIDAE) (FOSSIL)
- costula, Brotia costula (C.S. Rafinesque, 1833) - (PACHYCHILIDAE)
- costula, Fontannesia costula Imlay, 1973 † - syn of: Asthenoceras intermedium (Imlay, 1973 †) - (SONNINIIDAE) (FOSSIL)
- costula, Melania costula C.S. Rafinesque, 1833 - syn of: Brotia costula (C.S. Rafinesque, 1833) - (THIARIDAE)
- costula hainesiana, Brotia costula hainesiana (I. Lea, 1856) - (PACHYCHILIDAE)
- costula semilaevigata, Brotia costula semilaevigata T.N. Annandale, 1921 - (PACHYCHILIDAE)
- costularis, Fusus costularis J.B.P.A. Lamarck, 1822 - syn of: Coralliophila costularis (J.B.P.A. Lamarck, 1816) - (FASCIOLARIIDAE)
- costularis, Coralliophila costularis (J.B.P.A. Lamarck, 1816) - (MURICIDAE)
- costulata, Achatinella costulata J.T. Gulick, 1856 - syn of: Leptachatina costulata (J.T. Gulick, 1856) - (ACHATINELLIDAE)
- costulata, Leptachatina costulata (J.T. Gulick, 1856) - (AMASTRIDAE)
- costulata, Ancistrobasis costulata R.B. Watson, 1879 - syn of: Ancistrobasis reticulata (R.A. Philippi, 1844) - (ANCISTROBASIDAE)
- costulata, Omphalotropis costulata (A. Mousson, 1870) - (ASSIMINEIDAE)
- costulata, Clea costulata M.M. Schepman, 1885 - (BUCCINIDAE)
- costulata, Crepidula costulata R.W. Dunker, 1852 - syn of: Crepidula incurva W.J. Broderip, 1834 - (CALYPTRAEIDAE)
- costulata, Nanotrachia costulata F. Köhler & F. Criscione, 2013 - (CAMAENIDAE)
- costulata, Eurytrachia costulata J. Stanisic & D.G. Potter, 2010 - (CAMAENIDAE)
- costulata, Zachrysia guanensis costulata H.A. Pilsbry, 1928 - (CAMAENIDAE)
- costulata, Unitas costulata (J.B.P.A. Lamarck, 1803 †) - (CANCELLARIIDAE) (FOSSIL)
- costulata, Cerion costulata H.H. Beck, 1837 - (CERIONIDAE)
- costulata, Flammocharopa costulata (F.W. Hutton, 1883) - (CHAROPIDAE)
- costulata, Clausilia costulata S. Clessin, 1884 - syn of: Pyrostoma borealis (O. Böttger, 1878) - (CLAUSILIIDAE)
- costulata, Montenegrina hiltrudae costulata Z. Eröss & M. Szekeres, 2006 - (CLAUSILIIDAE)
- costulata, Symptychiella bilamellata costulata H. Nordsieck, 2010 - (CLAUSILIIDAE)
- costulata, Mentissa canalifera costulata (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- costulata, Macrogastra densestriata costulata (P.V. Gredler, 1856) - (CLAUSILIIDAE)
- costulata, Likharevia gilanensis costulata H. Nordsieck, 1995 - (CLAUSILIIDAE)
- costulata, Clymenia costulata G.G. Münster, 1840 † - syn of: Pseudoclymenia costulata (G.G. Münster, 1840 †) - (CLYMENIIDAE) (FOSSIL)
- costulata, Moelleria costulata (H.P.C. Møller, 1842) - (COLLONIIDAE)
- costulata, Anachis costulata É.A.A. Locard, 1897 - syn of: Amphissa acutecostata (R.A. Philippi, 1844) - (COLUMBELLIDAE)
- costulata, Pyrene costulata F.J. Cantraine, 1835 - syn of: Amphissa acutecostata (R.A. Philippi, 1844) - (COLUMBELLIDAE)
- costulata, Columbella costulata C.B. Adams, 1850 - syn of: Parvanachis obesa (C.B. Adams, 1845) - (COLUMBELLIDAE)
- costulata, Naticopsis costulata de Koninck, 1881 † - syn of: Naticopsis consimilis de Koninck, 1881 † - (DELPHINULOPSIDAE) (FOSSIL)
- costulata, Discus costulata O.F. von Möllendorff, 1887 - (DISCIDAE)
- costulata, Epitonium costulata L.C. Kiener, 1839 - syn of: Surrepifungium costulatum (L.C. Kiener, 1839) - (EPITONIIDAE)
- costulata, Emarginula costulata G.P. Deshayes, 1863 - (FISSURELLIDAE)
- costulata, Salanyella costulata Missarzhevsky & Mambetov, 1981 † - (HELCIONELLIDAE) (FOSSIL)
- costulata, Helix costulata C. Pfeiffer, 1828 - syn of: Helicopsis striata (O.F. Müller, 1774) - (HELICIDAE)
- costulata, Helix costulata W. Kobelt, 1884 - syn of: Arianta arbustorum alpicola (A.E.J. Férussac, 1821) - (HELICIDAE)
- costulata, Cochlogena costulata A.E.J. Férussac, 1821 - syn of: Bothriembryon costulatus (J.B.P.A. Lamarck, 1822) - (HELICIDAE)
- costulata, Helix costulata A.E.J. Férussac, 1821 - syn of: Bothriembryon costulatus (J.B.P.A. Lamarck, 1822) - (HELICIDAE)
- costulata, Murella muralis costulata (L. Benoit, 1857) - (HELICIDAE)
- costulata, Liburnica insolita costulata (Š. Brusina, 1869) - (HELICIDAE)
- costulata, Lilloiconcha costulata B. Hausdorf, 2005 - (HELICODISCIDAE)
- costulata, Pleydellia costulata Zieten, 1830 † - (HILDOCERATIDAE) (FOSSIL)
- costulata, Miseia costulata Patrulius 1974 † - (HIPPURITIDA (UNASSIGNED)) (FOSSIL)
- costulata, Semifruticicola costulata (K. Brancsik, 1897) - (HYGROMIIDAE)
- costulata, Trochoidea costulata E.A. Rossmässler, 1842 - syn of: Trochoidea pyramidata (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- costulata, Myoconcha costulata Girty, 1909 † - (KALENTERIDAE) (FOSSIL)
- costulata, Lepeta costulata É.A.A. Locard, 1898 - syn of: Bathysciadium costulatum (É.A.A. Locard, 1898) - (LEPETIDAE)
- costulata, Limacina costulata H.B. Preston, 1916 - (LIMACINIDAE)
- costulata, Lima costulata F.A. Roemer, 1839 † - (LIMIDAE) (FOSSIL)
- costulata, Limopsis costulata (G.A. Goldfuss, 1837 †) - (LIMOPSIDAE) (FOSSIL)
- costulata, Zagrabica costulata Taner, 1974 † - (LYMNAEIDAE) (FOSSIL)
- costulata, Radix lagotis costulata (E.C. Von Martens, 1874) - (LYMNAEIDAE)
- costulata, Mangelia costulata A. Risso, 1826 - (MANGELIIDAE)
- costulata, Mangelia costulata H.M.D. de Blainville, 1829 - syn of: Mangelia costulata A. Risso, 1826 - (MANGELIIDAE)
- costulata, Mangelia costulata R.W. Dunker, 1860 - syn of: Mangelia dunkeri J.T. Kuroda, 1961 - (MANGELIIDAE)
- costulata, Eratoidea costulata (K.H.J. Thiele, 1925) - (MARGINELLIDAE)
- costulata, Melanopsis laevigata costulata P.M. Pallary, 1898 - (MELANOPSIDAE)
- costulata, Mitra costulata A. Risso, 1826 - syn of: Pusia ebenus (J.B.P.A. Lamarck, 1811) - (MITRIDAE)
- costulata, Monocondylaea costulata S. Moricand, 1858 - syn of: Monocondylaea paraguayana D'Orbigny, 1835 - (MYCETOPODIDAE)
- costulata, Myophorella costulata (Lycett) † - (MYOPHORELLIDAE) (FOSSIL)
- costulata, Modiolus costulata R.A. Philippi, 1836 - syn of: Gregariella petagnae (A. Scacchi, 1832) - (MYTILIDAE)
- costulata, Nassarius costulata G.B. Brocchi, 1814 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata, Nassa costulata S.A. Renier, 1804 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata, Nassa costulata G.B. Brocchi, 1814 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata, Natica costulata J.R.C. Quoy & J.P. Gaimard, 1833 - syn of: Eunaticina papilla (J.F. Gmelin, 1791) - (NATICIDAE)
- costulata, Ptygmatis costulata Étallon, 1861 † - syn of: Nerinea mosae G.P. Deshayes, 1827 † - (NERINEIDAE) (FOSSIL)
- costulata, Nerita costulata G. von dem Busch in R.A. Philippi, 1844 - (NERITIDAE)
- costulata, Saccella costulata (G.P. Deshayes, 1858 †) - (NUCULANIDAE) (FOSSIL)
- costulata, Cyclodontina costulata (C.M.F. Ancey, 1904) - (ODONTOSTOMIDAE)
- costulata, Olivella costulata G. Paulmier, 2007 - (OLIVELLIDAE)
- costulata, Brotia costulata C.S. Rafinesque, 1833 - syn of: Brotia costula (C.S. Rafinesque, 1833) - (PACHYCHILIDAE)
- costulata, Patella costulata Münster, 1841 † - (PATELLIDAE) (FOSSIL)
- costulata, Barnea costulata J. Goodall, 1890 - syn of: Barnea candida (C. Linnaeus, 1758) - (PHOLADIDAE)
- costulata, Hinea costulata S.A. Renier, 1804 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (PLANAXIDAE) (FOSSIL)
- costulata, Goniobasis laqueata costulata (I. Lea, 1841) - (PLEUROCERIDAE)
- costulata, Holandriana holandrii costulata (A. Schmidt, 1847) - (PLEUROCERIDAE)
- costulata, Gari costulata (W. Turton, 1822) - (PSAMMOBIIDAE)
- costulata, Pseudoclymenia costulata (G.G. Münster, 1840 †) - (PSEUDOCLYMENIIDAE) (FOSSIL)
- costulata, Exilioidea costulata P. Bouchet & A. Warén, 1988 - (PTYCHATRACTIDAE)
- costulata, Pyrgulina costulata (R.W. Dunker, 1860) - (PYRAMIDELLIDAE)
- costulata, Turbonilla costulata A. Risso, 1826 - syn of: Turbonilla lactea (C. Linnaeus, 1758) - (PYRAMIDELLIDAE)
- costulata, Rissoa costulata J. Alder, 1844 - syn of: Rissoa guerinii C.A. Récluz, 1843 - (RISSOIDAE)
- costulata, Benthonella costulata J.G. Jeffreys, 1883 - syn of: Benthonella tenella (J.G. Jeffreys, 1869) - (RISSOIDAE)
- costulata, Rissolina costulata (R.W. Dunker, 1860) - (RISSOINIDAE)
- costulata, Rissoina costulata W.H. Pease, 1867 - syn of: Apataxia cerithiiformis (G.W. Tryon, 1887) - (RISSOINIDAE)
- costulata, Sinezona costulata D.L. Geiger & T. Sasaki, 2009 - (SCISSURELLIDAE)
- costulata, Eratopsis costulata Giebel † - (TRIVIIDAE) (FOSSIL)
- costulata, Truncatella costulata A. Risso, 1826 - syn of: Truncatella subcylindrica (C. Linnaeus, 1767) - (TRUNCATELLIDAE)
- costulata, Pleurotoma costulata F.J. Cantraine, 1835 - syn of: Crassopleura maravignae (Ant. Bivona-Bernardi in And. Bivona-Bernardi, 1838) - (TURRIDAE)
- costulata, Turritella costulata A. Risso, 1826 - syn of: Turbonilla lactea (C. Linnaeus, 1758) - (TURRITELLIDAE)
- costulata, Turritella costulata H.P.C. Møller, 1842 - syn of: Eumetula arctica (O.A.L. Mörch, 1857) - (TURRITELLIDAE)
- costulata, Turritella costulata J.W. Mighels & C.B. Adams, 1842 - syn of: Acirsa borealis (C. Lyell, 1841) - (TURRITELLIDAE)
- costulata, Geoscala costulata (C.B. Adams, 1849) - (UROCOPTIDAE)
- costulata, Cylindrella costulata P.M.A. Morelet, 1851 - syn of: Brachypodella speluncae (P.M.A. Morelet, 1852) - (UROCOPTIDAE)
- costulata, Cincinna piscinalis costulata H. Drouët, 1867 - (VALVATIDAE)
- costulata, Venus costulata W. Wood, 1828 - syn of: Tawera gallinula (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- costulata, Truncatellina costulata (S. Nilsson, 1823) - (VERTIGINIDAE)
- costulata, Bellamya costulata E.C. Von Martens, 1892 - (VIVIPARIDAE)
- costulata atra, Nassa costulata atra Š. Brusina, 1869 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata castanea, Nassa costulata castanea Š. Brusina, 1869 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata costata, Nassa costulata costata M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata crassicostata, Limopsis costulata crassicostata Sokolov † - (LIMOPSIDAE) (FOSSIL)
- costulata elongata, Anachis costulata elongata É.A.A. Locard, 1897 - syn of: Amphissa acutecostata (R.A. Philippi, 1844) - (COLUMBELLIDAE)
- costulata erythrea, Nassa costulata erythrea A. Issel, 1869 † - syn of: Reticunassa paupera (A.A. Gould, 1850 †) - (NASSARIIDAE) (FOSSIL)
- costulata fimbriatula, Melaniella costulata fimbriatula H.A. Pilsbry, 1907 - syn of: Costavarix costulatus (C.B. Adams, 1845) - (OLEACINIDAE)
- costulata flavida, Nassa costulata flavida M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata intermedia, Mangelia costulata intermedia (F. Nordsieck, 1977) - (MANGELIIDAE)
- costulata interrupta, Gari costulata interrupta P. Dautzenberg, 1927 - syn of: Gari costulata (W. Turton, 1822) - (PSAMMOBIIDAE)
- costulata lanceolata, Nassa costulata lanceolata M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata longa, Melaniella costulata longa H.A. Pilsbry, 1907 - syn of: Costavarix costulatus (C.B. Adams, 1845) - (OLEACINIDAE)
- costulata multistriata, Melaniella costulata multistriata H.A. Pilsbry, 1907 - syn of: Costavarix costulatus (C.B. Adams, 1845) - (OLEACINIDAE)
- costulata nivea, Gari costulata nivea P. Dautzenberg, 1927 - syn of: Gari costulata (W. Turton, 1822) - (PSAMMOBIIDAE)
- costulata pallidula, Melaniella costulata pallidula H.A. Pilsbry, 1907 - syn of: Costavarix costulatus (C.B. Adams, 1845) - (OLEACINIDAE)
- costulata portosanctanus, Semifruticicola costulata portosanctanus A.J. Wagner, 1914 - (HYGROMIIDAE)
- costulata pulcherrima, Nassa costulata pulcherrima M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata savlamari, Geoscala costulata savlamari H.B. Baker, 1935 - syn of: Macroceramus costulatus J. Gundlach in L. Pfeiffer, 1859 - (UROCOPTIDAE)
- costulata scacchii, Mangelia costulata scacchii F. Nordsieck, 1972 - (MANGELIIDAE)
- costulata serbica, Semifruticicola costulata serbica A.J. Wagner, 1914 - (HYGROMIIDAE)
- costulata sourensis, Cotteswoldia costulata sourensis Schloth † - syn of: Vacekia sourensis (Perrot, 1957 †) - (HILDOCERATIDAE) (FOSSIL)
- costulata striatapex, Melaniella costulata striatapex H.A. Pilsbry, 1907 - syn of: Costavarix costulatus (C.B. Adams, 1845) - (OLEACINIDAE)
- costulata turgida, Nassa costulata turgida M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulata zonata, Nassa costulata zonata Š. Brusina, 1869 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulatocanaliculata, Pleurotomaria costulatocanaliculata C.L.F. von Sandberger & C.L.F. von Sandberger, 1853 † - (PLEUROTOMARIIDAE) (FOSSIL)
- costulatostriata, Charpentieria stenzii costulatostriata (C.A. Westerlund, 1878) - (CLAUSILIIDAE)
- Costulatostyliolina, Genus Costulatostyliolina Lardeux, 1969 (STRIATOSTYLIOLINIDAE) (FOSSIL)
- costulatosus, Procerites costulatosus (Buckman) † - (PERISPHINCTIDAE) (FOSSIL)
- costulatum, Probeloceras costulatum Petter, 1959 † - syn of: Ponticeras costulatum (Petter, 1959 †) - (ACANTHOCLYMENIIDAE) (FOSSIL)
- costulatum, Bathysciadium costulatum (É.A.A. Locard, 1898) - (BATHYSCIADIIDAE)
- costulatum, Buccinum costulatum S.A. Renier, 1804 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (BUCCINIDAE) (FOSSIL)
- costulatum, Cerithium costulatum J.B.P.A. Lamarck, 1889 † - (CERITHIIDAE) (FOSSIL)
- costulatum, Crassopleura costulatum F.J. Cantraine, 1835 - syn of: Crassopleura maravignae (Ant. Bivona-Bernardi in And. Bivona-Bernardi, 1838) - (DRILLIIDAE)
- costulatum, Surrepifungium costulatum (L.C. Kiener, 1839) - (EPITONIIDAE)
- costulatum, Girtyoceras costulatum Kobold, 1933 † - syn of: Girtyoceras intracostatum Knopp, 1931 † - (GIRTYOCERATIDAE) (FOSSIL)
- costulatum, Goniatites costulatum Bruning, 1923 † - syn of: Goniatites spirifer F.A. Roemer, 1850 † - (GONIATITIDAE) (FOSSIL)
- costulatum, Lepton costulatum E.C. Von Martens, 1885 - syn of: Waldo parasiticus (W.H. Dall, 1876) - (LASAEIDAE)
- costulatum, Loxonema costulatum J. Perner, 1907 † - (LOXONEMATIDAE) (FOSSIL)
- costulatum, Eumetula costulatum H.P.C. Møller, 1842 - syn of: Eumetula arctica (O.A.L. Mörch, 1857) - (NEWTONIELLIDAE)
- costulatum, Hiregiroceras costulatum Miagkova, 1967 † - (ONCOCERIDA (UNASSIGNED)) (FOSSIL)
- costulatum, Ancylus costulatum H.C. Küster, 1843 - syn of: Ancylus fluviatilis O.F. Müller, 1774 - (PLANORBIDAE)
- costulatum, Cyclostoma costulatum E.A. Rossmässler, 1837 - syn of: Pomatias rivulare (K.E.I. von Eichwald, 1829) - (POMATIIDAE)
- costulatum, Ponticeras costulatum (Petter, 1959 †) - (PONTICERATIDAE) (FOSSIL)
- costulatum, Protrachyceras costulatum Mansuy, 1912 † - (TRACHYCERATIDAE) (FOSSIL)
- costulatum hyrcanum, Cyclostoma costulatum hyrcanum E.C. Von Martens, 1874 - syn of: Pomatias hyrcanum (E.C. Von Martens, 1874) - (POMATIIDAE)
- costulatus, Agoniatites costulatus (d'Archiac & de Verneuil, 1842 †) - (AGONIATITIDAE) (FOSSIL)
- costulatus, Bothriembryon costulatus (J.B.P.A. Lamarck, 1822) - (BOTHRIEMBRYONTIDAE)
- costulatus, Cantharus costulatus J.B.P.A. Lamarck, 1822 † - (BUCCINIDAE) (FOSSIL)
- costulatus, Scutalus costulatus W.K. Weyrauch, 1967 - (BULIMULIDAE)
- costulatus, Cerithiopsis costulatus H.P.C. Møller, 1842 - syn of: Eumetula arctica (O.A.L. Mörch, 1857) - (CERITHIOPSIDAE)
- costulatus, Tuoidachites costulatus Missarzehevsky in Rozanov & al., 1969 † - (CRESTJAHITIDAE) (FOSSIL)
- costulatus, Fusus costulatus F.J. Cantraine, 1835 - syn of: Amphissa acutecostata (R.A. Philippi, 1844) - (FASCIOLARIIDAE)
- costulatus, Sachites costulatus Meshkova, 1969 † - syn of: Halkieria sacciformis (Meshkova, 1969 †) - (HALKIERIIDAE) (FOSSIL)
- costulatus, Securiconus costulatus Missarzhevsky, 1989 † - (HELCIONELLIDAE) (FOSSIL)
- costulatus, Bemella costulatus Rozanov & al. 1969 † - (HELCIONELLIDAE) (FOSSIL)
- costulatus, Goniochilus costulatus (A. Fuchs, 1870 †) - (HYDROBIIDAE) (FOSSIL)
- costulatus, Allochiton costulatus Fucini, 1912 † - (ISCHNOCHITONIDAE) (FOSSIL)
- costulatus, Murex costulatus A. Risso, 1826 - syn of: Monoplex parthenopeus (C.U.A. von Salis-Marschlins, 1793) - (MURICIDAE)
- costulatus, Musculus costulatus (A. Risso, 1826) - (MYTILIDAE)
- costulatus, Modiolus costulatus A. Risso, 1826 - syn of: Musculus costulatus (A. Risso, 1826) - (MYTILIDAE)
- costulatus, Nassarius costulatus B.C.M. Payraudeau, 1826 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- costulatus, Costavarix costulatus (C.B. Adams, 1845) - (OLEACINIDAE)
- costulatus, Goniocyclus costulatus Gordon Jr., 1986 † - (PERICYCLIDAE) (FOSSIL)
- costulatus, Gyraulus costulatus (C.F.F. von Krauss, 1848) - (PLANORBIDAE)
- costulatus, Ancylus costulatus J.R. Bourguignat, 1853 - syn of: Ancylus fluviatilis O.F. Müller, 1774 - (PLANORBIDAE)
- costulatus, Planorbis costulatus C.F.F. von Krauss, 1848 - syn of: Gyraulus costulatus (C.F.F. von Krauss, 1848) - (PLANORBIDAE)
- costulatus, Monoplex costulatus A. Risso, 1826 - syn of: Monoplex parthenopeus (C.U.A. von Salis-Marschlins, 1793) - (RANELLIDAE)
- costulatus, Odontartemon costulatus O.F. von Möllendorff, 1883 - (STREPTAXIDAE)
- costulatus, Tuojdachithes costulatus Rozanov & al., 1969 † - (SULCAVITIDAE) (FOSSIL)
- costulatus, Discopsis costulatus (L. de Folin, 1870) - (TORNIDAE)
- costulatus, Cochliolepis costulatus L. de Folin, 1870 - syn of: Discopsis costulatus (L. de Folin, 1870) - (TORNIDAE)
- costulatus, Circulus costulatus É.A.A. Locard, 1889 - syn of: Circulus striatus W.M. Gabb, 1873 - (TORNIDAE)
- costulatus, Trochus costulatus J.B.P.A. Lamarck, 1822 - syn of: Lithopoma phoebium (P.F. Röding, 1798) - (TROCHIDAE)
- costulatus, Macroceramus costulatus J. Gundlach in L. Pfeiffer, 1859 - (UROCOPTIDAE)
- costulatus edentula, Odontartemon costulatus edentula (A.R.J.B. Bavay & P. Dautzenberg, 1903) - (STREPTAXIDAE)
- costulatus subcostulatus, Odontartemon costulatus subcostulatus (O.F. von Möllendorff, 1901) - (STREPTAXIDAE)
- costulifera, Cassis costulifera A.G. Beu, 2010 † - (CASSIDAE) (FOSSIL)
- costulifera, Herilla ziegleri costulifera (O.F. von Möllendorff, 1873) - (CLAUSILIIDAE)
- costulifera, Carinigera schuetti costulifera H. Nordsieck, 1984 - (CLAUSILIIDAE)
- costulifera, Andrefrancia costulifera (L. Pfeiffer, 1854) - (ENDODONTIDAE)
- costulifera, Rissoina costulifera W.H. Pease, 1862 - syn of: Rissoina ambigua (A.A. Gould, 1849) - (RISSOINIDAE)
- costulifera, Seguenzia costulifera M.M. Schepman, 1909 - (SEGUENZIIDAE)
- costulifera, Xyloskenea costulifera B.A. Marshall, 1988 - (SEGUENZIOIDEA (UNASSIGNED))
- costulifera, Tetinka costulifera Kríž, 2008 † - (SPANILIDAE) (FOSSIL)
- Costulofusus, syn of: Genus Lyrofusus de Gregorio, 1880 (BUCCINIDAE) (FOSSIL)
- costulosa, Leptachatina costulosa W.H. Pease, 1870 - (AMASTRIDAE)
- costulosa, Collonista costulosa (G.B. II Sowerby, 1886) - (COLLONIIDAE)
- costulosa, Atys costulosa W.H. Pease, 1869 - (HAMINOEIDAE)
- costulosa, Proximitra costulosa J. Marwick, 1965 † - (MITRIDAE) (FOSSIL)
- costulosa, Varicella costulosa (C.B. Adams, 1849) - (OLEACINIDAE)
- costulosa, Alvania costulosa A. Risso, 1826 - syn of: Alvania lineata A. Risso, 1826 - (RISSOIDAE)
- costulosa, Geomelania costulosa C.B. Adams, 1850 - (TRUNCATELLIDAE)
- costulosa, Vertigo costulosa W.H. Pease - syn of: Nesopupa newcombi (L. Pfeiffer, 1853) - (VERTIGINIDAE)
- costulosa aspera, Alvania costulosa aspera R.A. Philippi, 1844 - syn of: Alvania aspera (R.A. Philippi, 1844) - (RISSOIDAE)
- costulosa colossophila, Alvania costulosa colossophila J.J. Oberling, 1970 - syn of: Alvania colossophilus J.J. Oberling, 1970 - (RISSOIDAE)
- costulosum, Hammatoceras costulosum Merla, 1934 † - (HAMMATOCERATIDAE) (FOSSIL)
- costulosum, Hoplitoplacenticeras costulosum (F. Schlüter, 1867 †) - (PLACENTICERATIDAE) (FOSSIL)
- costulosum, Pisidium costulosum M. Connolly, 1931 - (SPHAERIIDAE)
- costulosus, Spiraxis costulosus C.B. Adams, 1850 - (SPIRAXIDAE)
- costulosus, Streptaxis costulosus (L. Pfeiffer, 1852) - (STREPTAXIDAE)
- costus, Turgenitubulus costus G.A. Solem, 1981 - (CAMAENIDAE)
- cosulcata, Chama cosulcata Pezant, 1911 † - (CHAMIDAE) (FOSSIL)
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