- cesai, Turbonilla cesai A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- cesairei, Clathropsis cesairei A. Cecalupo & I. Perugia, 2014 - (CERITHIOPSIDAE)
- cesari, Euthria cesari A. Monteiro & E. Rolán, 2005 - (BUCCINIDAE)
- cesari, Melanopsis cesari J.R. Bourguignat, 1880 - (MELANOPSIDAE)
- cesari, Melanopsis cesari P.M. Pallary, 1920 - syn of: Melanopsis buccinoidea chlorotica P.M. Pallary, 1911 - (MELANOPSIDAE)
- cesari zonata, Melanopsis cesari zonata P.M. Pallary, 1911 - (MELANOPSIDAE)
- cespitosus, Asteronotus cespitosus (J.C. van Hasselt, 1824) - (DISCODORIDIDAE)
- cespitum, Chondrula cespitum L.L.G. de Mortillet, 1854 - (ENIDAE)
- cespitum, Xeromagna cespitum (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- cespitum, Cernuella cespitum W. Adam, 1947 - syn of: Cernuella aginnica (É.A.A. Locard, 1882) - (HYGROMIIDAE)
- cespitum, Albea cespitum (J.P.R. Draparnaud, 1801) - (SPHINCTEROCHILIDAE)
- cespitum arigonis, Xeromagna cespitum arigonis (A. Schmidt, 1853) - (HYGROMIIDAE)
- cessaci, Ischnochiton cessaci (A. de Rochebrune, 1881) - (ISCHNOCHITONIDAE)
- cessaci, Leptochiton cessaci A. de Rochebrune, 1881 - syn of: Ischnochiton cessaci (A. de Rochebrune, 1881) - (LEPTOCHITONIDAE)
- cessaci, Volvarina taeniata cessaci F.P. Jousseaume, 1881 - (MARGINELLIDAE)
- cessens, Warrana cessens (J.C. Verco, 1908) - (CONDYLOCARDIIDAE)
- cesseyensis, Laminifera cesseyensis H. Nordsieck, 1978 † - (CLAUSILIIDAE) (FOSSIL)
- cessicus, Tubercliopsis cessicus (C. Hedley, 1906) - (CERITHIOPSIDAE)
- cesta, Bradybaena cesta (W.H. Benson, 1836) - (BRADYBAENIDAE)
- cesta, Cerithiopsis cesta P. Bartsch, 1911 - (CERITHIOPSIDAE)
- cesta, Mangelia cesta W.H. Dall, 1919 - (MANGELIIDAE)
- cesta magellanica, Cerithiopsis cesta magellanica P. Bartsch, 1911 - syn of: Cerithiopsis magellanica P. Bartsch, 1911 - (CERITHIOPSIDAE)
- cestasensis, Arca fichteli cestasensis A.E.M. Cossmann & M.A. Peyrot, 1912 - (ARCIDAE)
- cestasensis, Calyptraea cestasensis A.E.M. Cossmann & M.A. Peyrot, 1921 † - (CALYPTRAEIDAE) (FOSSIL)
- cestasensis, Semicassis grateloupi cestasensis A.E.M. Cossmann & M.A. Peyrot, 1923 - (CASSIDAE)
- cestasensis, Hydrobia cestasensis A.E.M. Cossmann & M.A. Peyrot, 1918 † - (HYDROBIIDAE) (FOSSIL)
- cestasensis, Ocinebrina excoelata cestasensis A.E.M. Cossmann & M.A. Peyrot, 1923 † - (MURICIDAE) (FOSSIL)
- cestasensis, Ancylus cestasensis M.A. Peyrot, 1932 † - (PLANORBIDAE) (FOSSIL)
- cestasensis, Turritella cestasensis A.E.M. Cossmann & M.A. Peyrot, 1921 † - (TURRITELLIDAE) (FOSSIL)
- cestata, Pelicaria cestata J. Marwick, 1965 - (STRUTHIOLARIIDAE)
- cesticulus, Hemitrochus cesticulus (J. Gundlach in L. Pfeiffer, 1858) - (CEPOLIDAE)
- Cestoma, syn of: Genus Propebela T. Iredale, 1918 (MANGELIIDAE)
- cestrota, Inodrillia cestrota W.H. Dall, 1889 - syn of: Inodrillia dalli (A.E. Verrill & S. Smith in A.E. Verrill, 1882) - (HORAICLAVIDAE)
- cestrota, Nuculana cestrota (W.H. Dall, 1890) - (NUCULANIDAE)
- cestrum, Vepridaphne cestrum (C. Hedley, 1922) - (RAPHITOMIDAE)
- cestrum, Daphnella cestrum C. Hedley, 1922 - syn of: Vepridaphne cestrum (C. Hedley, 1922) - (RAPHITOMIDAE)
- cestum, Phlogocardia cestum (W.H. Dall, 1903 †) - (CARDIIDAE) (FOSSIL)
- Cestumcerithium, Genus Cestumcerithium Petuch, 1997 (CERITHIIDAE) (FOSSIL)
- cestus, Achatinella apexfulva cestus W. Newcomb, 1854 - (ACHATINELLIDAE)
- cetia, Balcis cetia W.P. Woodring, 1970 † - (EULIMIDAE) (FOSSIL)
- ceticola, Osteopelta ceticola A. Warén, 1989 - (OSTEOPELTIDAE)
- cetivora, Euphaedusa tau cetivora (P.M. Heude, 1882) - (CLAUSILIIDAE)
- Cetoconcha, Genus Cetoconcha W.H. Dall, 1889 (CETOCONCHIDAE)
- CETOCONCHIDAE Ridewood, 1903 - Family (BIVALVIA-HETERODONTA [Subclass]-EUHETERODONTA [Infraclass]-ANOMALODESMATA [Order]-POROMYOIDEA [Superfamily])
- cetolaca, Mangelia cetolaca W.H. Dall, 1908 - (MANGELIIDAE)
- cetolacea, Mangelia cetolacea W.H. Dall, 1908 - syn of: Glyptaesopus oldroydi (R. Arnold, 1903) - (MANGELIIDAE)
- Cetomya, Genus Cetomya W.H. Dall, 1889 (POROMYIDAE)
- Cetonoceras, Genus Cetonoceras Wiedenmayer , 1977 (DACTYLIOCERATIDAE) (FOSSIL)
- Cetothrax, Subgenus Thracia (Cetothrax) T. Iredale, 1949 (THRACIIDAE)
- cettinensis, Bithynia cettinensis S. Clessin, 1887 - (BITHYNIIDAE)
- ceutae, Tambja ceutae J.C. García-Gómez & J.A. Ortea, 1988 - (POLYCERIDAE)
- ceuthma, Mautodontha ceuthma G.A. Solem, 1976 - (ENDODONTIDAE)
- cevikeri, Murexsul cevikeri (R. Houart, 2000) - (MURICIDAE)
- cevikeri, Spondylus cevikeri (K.L. Lamprell, J. Stanisic & P.S. Clarkson, 2001) - (SPONDYLIDAE)
- ceylanensis, Conus ceylanensis C.H. Hwass in J.G. Bruguière, 1792 - syn of: Harmoniconus musicus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- ceylanensis, Solen ceylanensis W.E. Leach - syn of: Solen ceylonensis W.E. Leach, 1814 - (SOLENIDAE)
- ceylanica, Cryptozona ceylanica (L. Pfeiffer) - (ARIOPHANTIDAE)
- ceylanica, Armina ceylanica L.S.R. Bergh, 1890 - (ARMINIDAE)
- ceylanica, Bulla ceylanica J.G. Bruguière, 1792 - syn of: Akera soluta (J.F. Gmelin, 1791) - (BULLIDAE)
- ceylanica, Beddomea ceylanica (L. Pfeiffer, 1846) - (CAMAENIDAE)
- ceylanica, Phaedusa ceylanica (W.H. Benson, 1863) - (CLAUSILIIDAE)
- ceylanica, Thala ceylanica H.B. Preston, 1904 - syn of: Thala jaculanda (A.A. Gould, 1860) - (COSTELLARIIDAE)
- ceylanica, Nicida ceylanica (R.H. Beddome, 1875) - (DIPLOMMATINIDAE)
- ceylanica, Eoacmaea ceylanica (E.A. Smith, 1911) - (EOACMAEIDAE)
- ceylanica, Limatula ceylanica (C.B. Adams, 1864) - (LIMIDAE)
- ceylanica, Lima ceylanica K.H.J. Thiele, 1920 - (LIMIDAE)
- ceylanica, Frenamya ceylanica (G.B. I Sowerby, 1835) - (PANDORIDAE)
- ceylanica, Ferrissia ceylanica (W.H. Benson, 1864) - (PLANORBIDAE)
- ceylanica, Plicatula ceylanica G.B. Sowerby, 1873 - (PLICATULIDAE)
- ceylanica, Kleinella ceylanica (H.B. Preston, 1905) - (PYRAMIDELLIDAE)
- ceylanica, Pyramidella ceylanica H.B. Preston, 1905 - syn of: Kleinella ceylanica (H.B. Preston, 1905) - (PYRAMIDELLIDAE)
- ceylanica, Cyclas ceylanica H.M.D. de Blainville, 1818 - syn of: Geloina erosa (J. Lightfoot, 1786) - (SPHAERIIDAE)
- ceylanica, Glessula ceylanica (L. Pfeiffer, 1845) - (SUBULINIDAE)
- ceylanica, Succinea ceylanica L. Pfeiffer - (SUCCINEIDAE)
- ceylanica, Truncatella ceylanica L. Pfeiffer, 1857 - (TRUNCATELLIDAE)
- ceylanica, Idiopoma dissimilis ceylanica (W.L.H. Dohrn, 1853) - (VIVIPARIDAE)
- ceylanicus, Chiton ceylanicus E.A. Smith, 1904 - (CHITONIDAE)
- ceylanicus, Cyclophorus ceylanicus L. Pfeiffer, 1843 - syn of: Cyclophorus ceylonicus (L. Pfeiffer, 1843) - (CYCLOPHORIDAE)
- ceylanicus, Clanculus ceylanicus G. Nevill & H. Nevill, 1869 - syn of: Clanculus ceylonicus G. Nevill & H. Nevill, 1869 - (TROCHIDAE)
- ceylonensis, Cetoconcha ceylonensis J. Knudsen, 1970 - (CETOCONCHIDAE)
- ceylonensis, Colubraria ceylonensis (G.B. I Sowerby, 1833) - (COLUBRARIIDAE)
- ceylonensis, Conus ceylonensis C.H. Hwass in J.G. Bruguière, 1792 - syn of: Harmoniconus musicus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- ceylonensis, Solen ceylonensis W.E. Leach, 1814 - (SOLENIDAE)
- ceylonensis, Tapes ceylonensis G.B. II Sowerby, 1852 - syn of: Marcia opima (J.F. Gmelin, 1791) - (VENERIDAE)
- ceylonica, Lucilina ceylonica (E.H.J. Leloup, 1936) - (CHITONIDAE)
- ceylonica, Turricula ceylonica (E.A. Smith, 1877) - (CLAVATULIDAE)
- ceylonica, Dondice ceylonica (G.P. Farran, 1905) - (FACELINIDAE)
- ceylonica, Sakuraeolis ceylonica C.N.E. Eliot, 1913 - syn of: Sakuraeolis enosimensis (K. Baba, 1930) - (FACELINIDAE)
- ceylonica, Gymnodoris ceylonica (E.F. Kelaart, 1858) - (GYMNODORIDIDAE)
- ceylonica, Tenguella ceylonica (W.H. Dall, 1923) - (MURICIDAE)
- ceylonica, Frenamya ceylonica S.C.T. Hanley, 1843 - syn of: Frenamya ceylanica (G.B. I Sowerby, 1835) - (PANDORIDAE)
- ceylonica, Pandora ceylonica S.C.T. Hanley, 1843 - syn of: Frenamya ceylanica (G.B. I Sowerby, 1835) - (PANDORIDAE)
- ceylonica, Phyllidiella ceylonica E.F. Kelaart, 1858 - syn of: Phyllidiella zeylanica (E.F. Kelaart, 1859) - (PHYLLIDIIDAE)
- ceylonica, Scrobicularia ceylonica R.B. Watson, 1886 - (SCROBICULARIIDAE)
- ceylonica, Pleurotoma ceylonica E.A. Smith, 1877 - syn of: Turricula ceylonica (E.A. Smith, 1877) - (TURRIDAE)
- ceylonica, Pelecyora ceylonica (R.W. Dunker, 1865) - (VENERIDAE)
- ceylonica, Venus ceylonica W. Martini & J.H. Chemnitz, 1782 - syn of: Geloina erosa (J. Lightfoot, 1786) - (VENERIDAE)
- ceylonica, Viviparus ceylonica W.L.H. Dohrn - (VIVIPARIDAE)
- ceylonicum, Pentadactylis ceylonicum H.B. Preston, 1909 - syn of: Ergalatax contracta (L.A. Reeve, 1846) - (MURICIDAE)
- ceylonicus, Notarchus ceylonicus G.P. Farran, 1905 - syn of: Notarchus indicus A. Schweigger, 1820 - (APLYSIIDAE)
- ceylonicus, Conus ceylonicus L.A. Reeve, 1849 - syn of: Puncticulis zeylanicus (J.F. Gmelin, 1791) - (CONIDAE)
- ceylonicus, Cyclophorus ceylonicus (L. Pfeiffer, 1843) - (CYCLOPHORIDAE)
- ceylonicus, Melampus ceylonicus S.A.A. Petit De La Saussaye, 1843 - (ELLOBIIDAE)
- ceylonicus, Plesiotrochus ceylonicus G.B. III Sowerby, 1915 - (PLESIOTROCHIDAE)
- ceylonicus, Plocamopherus ceylonicus (E.F. Kelaart, 1858) - (POLYCERIDAE)
- ceylonicus, Clanculus ceylonicus G. Nevill & H. Nevill, 1869 - (TROCHIDAE)
- ceyssoni, Euomphalia ceyssoni J.R. Bourguignat in É.A.A. Locard, 1882 - syn of: Euomphalia strigella (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- cezairensis, Belgrandiella cezairensis H.D. Boeters, 2000 - (HYDROBIIDAE)
- cfmarginatum, Gyrineum cfmarginatum (J.F. Gmelin, 1790) - (RANELLIDAE)
- chaac, Conasprella chaac (E.J. Petuch, D.P. Berschauer & Poremski, 2017) - (CONIDAE)
- chaaci, Clathrodrillia chaaci (J. Espinosa & E. Rolán, 1995) - (DRILLIIDAE)
- Chabactoceras, Genus Chabactoceras Malinovskaya, 1964 (ELLESMEROCERIDA (UNASSIGNED)) (FOSSIL)
- chabakowi, Thalassoceras chabakowi Voinova, 1934 † - syn of: Thalassoceras gemmellaroi Karpinsky, 1889 † - (THALASSOCERATIDAE) (FOSSIL)
- Chabaktiella, syn of: Genus Igorella Rozanov & al., 1969 (HELCIONELLIDAE) (FOSSIL)
- chabanae, Melanochlamys chabanae Breslau, Valdés & Chichvarkhin, 2016 - (AGLAJIDAE)
- chabanesi, Waikura chabanesi (L. de Folin & J.P.L. Périer, 1870 †) - (PYRAMIDELLIDAE) (FOSSIL)
- chabertiana, Xeroleuca chabertiana T. Kira, 1955 - (HYGROMIIDAE)
- chabii, Pseudamnicola chabii P. Glöer, S. Bouzid & H.D. Boeters, 2010 - (HYDROBIIDAE)
- chacaensis, Incania chacaensis (W. . Lubomirski, 1879) - (CLAUSILIIDAE)
- chaceae, Mandaloceras chaceae Flower † - (MANDALOCERATIDAE) (FOSSIL)
- chaceana, Monadenia chaceana S.S. Berry, 1940 - (MONADENIIDAE)
- chacei, Opalia chacei A.M. Strong, 1937 - syn of: Opalia borealis (A.A. Gould, 1852) - (EPITONIIDAE)
- chacei, Herpeteros chacei (G. Willett, 1940) - (HELMINTHOGLYPTIDAE)
- chacei, Orobitella chacei (W.H. Dall, 1916) - (LASAEIDAE)
- chacei, Mopalia chacei S.S. Berry, 1919 - (MOPALIIDAE)
- chacei, Pomatiopsis chacei H.A. Pilsbry, 1937 - (POMATIOPSIDAE)
- chacei, Crassispira chacei L.G. Hertlein & A.M. Strong, 1951 - (PSEUDOMELATOMIDAE)
- Chaceia, Genus Chaceia H. Turner, 1855 (PHOLADIDAE)
- chaceorum, Ischnochiton chaceorum P. Kaas & R.A. Van Belle, 1990 - (ISCHNOCHITONIDAE)
- chacmol, Gastropteron chacmol T.M. Gosliner, 1989 - (GASTROPTERIDAE)
- chacoensis, Pomacea canaliculata chacoensis P.H. Scott, 1967 - (AMPULLARIIDAE)
- chacoensis, Bostryx chacoensis H.B. Preston, 1907 - (BULIMULIDAE)
- chacoensis, Naesiotus montivagus chacoensis C.M.F. Ancey, 1897 - (BULIMULIDAE)
- chadiana, Helicella chadiana (P.M. Pallary, 1898) - (HYGROMIIDAE)
- chadwickense, Tarphyceras chadwickense Ulrich & al., 1942 † - (TARPHYCERATIDAE) (FOSSIL)
- chadwickense, Wichitoceras chadwickense Ulrich & al., 1942 † - (TROCHOLITIDAE) (FOSSIL)
- chadwicki, Webbhelix chadwicki (J.H. Ferriss, 1907) - (POLYGYRIDAE)
- Chadwickoceras, Genus Chadwickoceras Foerste, 1930 (ACLEISTOCERATIDAE) (FOSSIL)
- Chaena, syn of: Genus Gastrochaena L. Spengler, 1783 (GASTROCHAENIDAE)
- Chaenaxis, Genus Chaenaxis H.A. Pilsbry & J.H. Ferriss, 1906 (GASTROCOPTIDAE)
- Chaenocardia, Genus Chaenocardia Meek, 1869 (CHAENOCARDIIDAE) (FOSSIL)
- CHAENOCARDIIDAE S.A. Miller, 1889 - Family (BIVALVIA-PTERIOMORPHIA [Subclass]-PECTINIDA [Order]-CHAENOCARDIOIDEA [Superfamily]) (FOSSIL)
- Chaenocardiola, Genus Chaenocardiola Holzapfel, 1889 (LUNULICARDIIDAE) (FOSSIL)
- Chaenomya, Genus Chaenomya Meek, 1864 (PHOLADOMYIDAE) (FOSSIL)
- Chaenopaea, syn of: Genus Panomya J.E. Gray, 1857 (HIATELLIDAE)
- chaenostomus, Gyraulus chaenostomus (Š. Brusina, 1902) - (PLANORBIDAE)
- Chaenoturbo, syn of: Genus Turbo C. Linnaeus, 1758 (TURBINIDAE)
- Chaetoderma, Genus Chaetoderma S.L. Lovιn, 1844 (CHAETODERMATIDAE)
- CHAETODERMATIDAE Thιel, 1875 - Family (CAUDOFOVEATA-CAUDOFOVEATA [Subclass]-CHAETODERMATIDA [Order])
- Chaetopleura, Genus Chaetopleura R.J. Shuttleworth, 1853 (CHAETOPLEURIDAE)
- CHAETOPLEURIDAE Plate, 1899 - Family (POLYPLACOPHORA-NEOLORICATA [Subclass]-CHITONIDA [Order]-CHITONINA [Suborder]-CHITONOIDEA [Superfamily])
- chaetopterana, Tenellia chaetopterana Ekimova, Deart & Schepetov, 2017 - (TRINCHESIIDAE)
- chafarinensis, Alabastrina subvaminquei chafarinensis (P.M. Pallary, 1903) - (HELICIDAE)
- chagosi, Prunum chagosi B. Hayes & F. Boyer, 1997 - (MARGINELLIDAE)
- chagosi, Tomlinella chagosi J.M.R.M. Viader, 1938 - syn of: Tomlinella insignis (A. Adams & L.A. Reeve, 1850) - (ZEBINIDAE)
- Chagrepecten, Genus Chagrepecten Waller , 2011 (PECTINIDAE) (FOSSIL)
- chagresensis, Aroapyrgus chagresensis J.P.E. Morrison, 1946 - (COCHLIOPIDAE)
- chagualensis, Bostryx chagualensis H.A. Pilsbry, 1932 - (BULIMULIDAE)
- chahalisensis, Nuculana chahalisensis (C.S. Weaver †) - (NUCULANIDAE) (FOSSIL)
- chaidea, Purpura chaidea P.L. Duclos, 1832 - syn of: Oppomorus noduliferus (K.T. Menke, 1829) - (MURICIDAE)
- chaidea, Thais chaidea P.L. Duclos, 1832 - syn of: Oppomorus noduliferus (K.T. Menke, 1829) - (MURICIDAE)
- chaidea, Morula chaidea P.L. Duclos, 1832 - syn of: Oppomorus noduliferus (K.T. Menke, 1829) - (MURICIDAE)
- chaillei, Horologica chaillei A. Cecalupo & I. Perugia, 2017 - (CERITHIOPSIDAE)
- chaitena, Scurria chaitena (Ramirez-Bohme, 1974) - (LOTTIIDAE)
- chaitena, Collisella chaitena R. Ramírez, 1974 - syn of: Scurria ceciliana (A.V.M.D. D'Orbigny, 1841) - (LOTTIIDAE)
- chaixii, Mesodontopsis chaixii (A. Michaud, 1855 †) - (HELICIDAE) (FOSSIL)
- chaixii, Helix chaixii A. Michaud, 1855 † - syn of: Mesodontopsis chaixii (A. Michaud, 1855 †) - (HELICIDAE) (FOSSIL)
- chaixii heriacensis, Helix chaixii heriacensis Depéret, 1895 † - syn of: Mesodontopsis heriacensis (Depéret, 1895 †) - (HELICIDAE) (FOSSIL)
- chaiziana, Aspatharia chaiziana (P.C.A.S.L. Rang, 1835) - (IRIDINIDAE)
- chaka, Baeolidia chaka (T.M. Gosliner, 1985) - (AEOLIDIIDAE)
- chakeensis, Psammotreta chakeensis (Cox 1927) † - (TELLINIDAE) (FOSSIL)
- chakkapaki, Claraia chakkapaki Chonglakmani, 1981 † - (PTERINOPECTINIDAE) (FOSSIL)
- chalaensis, Patinigera chalaensis DeVries, 2007 † - (NACELLIDAE) (FOSSIL)
- Chalalabelus, Genus Chalalabelus Jeletzky, 1981 (BELEMNITIDA (UNASSIGNED)) (FOSSIL)
- chalarogyrus, Aphaostracon chalarogyrus F.G. Thompson, 1968 - (COCHLIOPIDAE)
- Chalarostrepsis, syn of: Genus Strepsodiscus Knight, 1948 (TROPIDODISCIDAE) (FOSSIL)
- chalcana, Turbonilla chalcana F.C. Baker, G.D. Hanna & A.M. Strong, 1928 - (PYRAMIDELLIDAE)
- chalcanthum, Anadara gubernaculum chalcanthum (L.A. Reeve, 1844) - (ARCIDAE)
- chalcedonica, Erosaria chalcedonica G. Perry, 1811 - syn of: Erosaria helvola (C. Linnaeus, 1758) - (CYPRAEIDAE)
- Chalcedoniceras, Genus Chalcedoniceras Buckman, 1922 (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- chalcedonicum, Chalcedoniceras chalcedonicum (Young & Bird) † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- chalcedonius, Parviphos chalcedonius G.T. Watters, 2009 - (BUCCINIDAE)
- chalceum, Asperiscala chalceum A.A. Olsson & M. Smith, 1951 - syn of: Epitonium indistinctum (G.B. II Sowerby, 1844) - (EPITONIIDAE)
- chalceum, Epitonium chalceum A.A. Olsson & M. Smith, 1951 - syn of: Epitonium indistinctum (G.B. II Sowerby, 1844) - (EPITONIIDAE)
- chalcidensis, Albinaria brevicollis chalcidensis (O. Böttger, 1889) - (CLAUSILIIDAE)
- Chalcocystis, Subgenus Trachycystis (Chalcocystis) H. Watson, 1934 (CHAROPIDAE)
- chalcoensis, Anodonta chalcoensis J.C.H. Crosse & P.H. Fischer, 1893 - syn of: Anodonta impura T. Say, 1829 - (UNIONIDAE)
- chalconotum, Umbonium chalconotum A. Adams, 1854 - (TROCHIDAE)
- chaldaea, Turris chaldaea R.N. Kilburn, A.E. Fedosov & B.M. Olivera, 2012 - (TURRIDAE)
- chaldaeus, Virroconus chaldaeus (P.F. Röding, 1798) - (CONIDAE)
- chaldaeus, Conus chaldaeus P.F. Röding, 1798 - syn of: Virroconus chaldaeus (P.F. Röding, 1798) - (CONIDAE)
- chaldeus, Conus chaldeus P.F. Röding, 1798 - syn of: Virroconus chaldaeus (P.F. Röding, 1798) - (CONIDAE)
- chalensis, Sonneratia kitchini chalensis T.L. Casey † - (HOPLITIDAE) (FOSSIL)
- Chalepotaxis, Genus Chalepotaxis C.M.F. Ancey, 1887 (BRADYBAENIDAE)
- chaleurensis, Oriostoma chaleurensis Northrop, 1939 † - (ORIOSTOMATIDAE) (FOSSIL)
- chalicophila, Wayampia chalicophila (A.V.M.D. D'Orbigny, 1835) - (SCOLODONTIDAE)
- Chalicopoma, Subgenus Omphalotropis (Chalicopoma) O.F. von Mφllendorff, 1894 (ASSIMINEIDAE)
- Chalidis, syn of: Genus Limapontia G. Johnston, 1836 (LIMAPONTIIDAE)
- chaligi, Barcania chaligi R.A.M. Brandt, 1956 - (CLAUSILIIDAE)
- chaligi tigaensis, Barcania chaligi tigaensis R.A.M. Brandt, 1958 - (CLAUSILIIDAE)
- chalinei, Tournouerina chalinei Schlickum & Puisségur, 1977 † - (HYDROBIIDAE) (FOSSIL)
- chalinei, Aphanotylus chalinei W.R. Schlickum & Puisségur, 1978 † - (VALVATIDAE) (FOSSIL)
- chalix, Paranarcestes chalix Klug, 2002 † - (ANARCESTIDAE) (FOSSIL)
- chalkeie, Calliotropis chalkeie C. Vilvens, 2007 - (CALLIOTROPIDAE)
- challengeri, Belomitra challengeri (E.A. Smith, 1891) - (BELOMITRIDAE)
- challengeri, Awateria challengeri E.A. Smith, 1891 - syn of: Belomitra challengeri (E.A. Smith, 1891) - (BORSONIIDAE)
- challengeri, Parastrophia challengeri L. de Folin, 1880 - (CAECIDAE)
- challengeri, Ramogenia challengeri (G.P.L.K. Gude, 1906) - (CAMAENIDAE)
- challengeri, Carinaria challengeri K.E.H. Bonnevie, 1920 - syn of: Carinaria pseudorugosa A.J.B.M. Vayssière, 1904 - (CARINARIIDAE)
- challengeri, Metachaetoderma challengeri (H.F. Nierstrasz, 1903) - (LIMIFOSSORIDAE)
- challengeri, Graneledone challengeri (S.S. Berry, 1916) - (OCTOPODIDAE)
- challengeri, Grimpoteuthis challengeri M.A. Collins, 2003 - (OPISTHOTEUTHIDAE)
- challengeri, Pseudamussium challengeri (E.A. Smith, 1891) - (PECTINIDAE)
- challengeri, Pterotrachea challengeri J.J. Tesch, 1906 - syn of: Pterotrachea coronata P. Forsskål in C. Niebuhr, 1775 - (PTEROTRACHEIDAE)
- challengeri, Pleurotoma challengeri E.A. Smith, 1891 - syn of: Belomitra challengeri (E.A. Smith, 1891) - (TURRIDAE)
- challengeriana, Tritonia challengeriana L.S.R. Bergh, 1884 - (TRITONIIDAE)
- challengeriana antarctica, Tritonia challengeriana antarctica G.J. Pfeffer, 1886 - (TRITONIIDAE)
- challengerica, Falsimargarita challengerica B.A. Marshall, 2016 - (CALLIOSTOMATIDAE)
- challisae, Bittium challisae P. Bartsch, 1917 - (CERITHIIDAE)
- challisi, Figuladra challisi (J.C. Cox, 1873) - (CAMAENIDAE)
- challisi, Sphaerospira challisi J.C. Cox, 1873 - syn of: Figuladra challisi (J.C. Cox, 1873) - (CAMAENIDAE)
- challisi klatteanus, Figuladra challisi klatteanus (J.C. Cox, 1873) - (CAMAENIDAE)
- challisiana, Thracia challisiana W.H. Dall, 1915 - (THRACIIDAE)
- chalmasi, Lucina chalmasi A.E.M. Cossmann & A. Lambert, 1884 † - (LUCINIDAE) (FOSSIL)
- Chalmasia, Genus Chalmasia Stoliczka, 1871 (PTERIIDA (UNASSIGNED)) (FOSSIL)
- chalmersi, Marginella chalmersi J.R. le B. Tomlin & L.J. Shackleford, 1912 - (MARGINELLIDAE)
- Chalmon, syn of: Genus Trophonopsis M.E.J. Bucquoy & P. Dautzenberg, 1882 (MURICIDAE)
- Chalmys, syn of: Genus Chlamys P.F. Rφding, 1798 (PECTINIDAE)
- chalossensis, Rissoina chalossensis P. Lozouet, 2015 - (RISSOINIDAE)
- chalybea, Pseudosuccinea columella chalybea (A.A. Gould) - (LYMNAEIDAE)
- chalybeatum, Epitonium chalybeatum P.F. Röding, 1798 - (EPITONIIDAE)
- chalybeia, Mitra chalybeia L.A. Reeve, 1844 - (MITRIDAE)
- Chama, Genus Chama C. Linnaeus, 1758 (CHAMIDAE)
- Chamaearionta, Subgenus Micrarionta (Chamaearionta) S.S. Berry, 1930 (HELMINTHOGLYPTIDAE)
- chamaeconus, Pseudocryptaulina chamaeconus (E.F.R.K. Koken, 1896 †) - (EOTOMARIIDAE) (FOSSIL)
- chamaeformis, Cyclocardia chamaeformis J. de C. Sowerby, 1825 † - syn of: Cyclocardia orbicularis chamaeformis (J. de C. Sowerby, 1825 †) - (CARDITIDAE) (FOSSIL)
- chamaeformis, Cyclocardia orbicularis chamaeformis (J. de C. Sowerby, 1825 †) - (CARDITIDAE) (FOSSIL)
- chamaeformis, Hipponix chamaeformis A. de Rochebrune, 1881 - syn of: Hipponix leptus L.R.L. Simone, 2002 - (HIPPONICIDAE)
- chamaeleon, Bulimus chamaeleon L. Pfeiffer, 1855 - syn of: Drymaeus ambustus (L.A. Reeve, 1849) - (BULIMULIDAE)
- chamaeleon, Arianta chamaeleon L. Pfeiffer, 1842 - (HELICIDAE)
- chamaeleon, Argonerita chamaeleon (C. Linnaeus, 1758) - (NERITIDAE)
- chamaeleon, Calcatodrillia chamaeleon R.N. Kilburn, 1988 - (PSEUDOMELATOMIDAE)
- chamaeleon carnica, Arianta chamaeleon carnica (P. Ehrmann, 1910) - (HELICIDAE)
- chamaeleon squamata, Argonerita chamaeleon squamata (E.J. Le Guillou, 1905) - (NERITIDAE)
- chamaeleon stella, Argonerita chamaeleon stella (L.A. Reeve, 1855) - (NERITIDAE)
- chamaeleon subglobosa, Arianta chamaeleon subglobosa (P. Ehrmann, 1910) - (HELICIDAE)
- chamaeleon tullina, Arianta chamaeleon tullina (P. Ehrmann, 1910) - (HELICIDAE)
- chamaeleon wiedemayri, Arianta chamaeleon wiedemayri (W. Kobelt, 1903) - (HELICIDAE)
- Chamahippopus, syn of: Genus Chama C. Linnaeus, 1758 (CHAMIDAE)
- Chamalycaeus, Genus Chamalycaeus W. Kobelt & O.F. von Mφllendorff, 1897 (CYCLOPHORIDAE)
- Chamalychaeus, syn of: Genus Chamalycaeus W. Kobelt & O.F. von Mφllendorff, 1897 (CYCLOPHORIDAE)
- chamana, Pomacea lattrei chamana (A. Hinkley, 1920) - (AMPULLARIIDAE)
- chamasensis, Pseudamnicola chamasensis H.D. Boeters, 2000 - (HYDROBIIDAE)
- chamasolen, Azorinus chamasolen (E.M. Da Costa, 1778) - (SOLECURTIDAE)
- chamasolen, Solen chamasolen E.M. Da Costa, 1778 - syn of: Azorinus chamasolen (E.M. Da Costa, 1778) - (SOLENIDAE)
- chamasolen miocaenica, Azorinus chamasolen miocaenica A.E.M. Cossmann & M.A. Peyrot, 1910 † - (SOLECURTIDAE) (FOSSIL)
- chamayensis, Naesiotus subcostatus chamayensis W.K. Weyrauch, 1967 - (BULIMULIDAE)
- chambaensis, Centralia chambaensis (H.A. Pilsbry, 1929) - (UROCOPTIDAE)
- chambaensis, Torrecoptis bacillaris chambaensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- chambardi, Aetheria chambardi J.R. Bourguignat, 1880 - syn of: Etheria elliptica J.B.P.A. Lamarck, 1807 - (ETHERIIDAE)
- chambardi, Theba chambardi J.R. Bourguignat, 1860 - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- chambardi, Mutela chambardi G. Servain, 1890 - syn of: Mutela dubia J.F. Gmelin, 1793 - (IRIDINIDAE)
- Chambardia, Subgenus Aspatharia (Chambardia) G. Servain, 1890 (IRIDINIDAE)
- chambasensis, Centralia chambasensis H.A. Pilsbry, 1929 - syn of: Centralia chambaensis (H.A. Pilsbry, 1929) - (UROCOPTIDAE)
- chamberlaini, Nembrotha chamberlaini T.M. Gosliner & D.W. Behrens, 1997 - (POLYCERIDAE)
- chamberlaini, Teredothyra chamberlaini P. Bartsch, 1927 - syn of: Teredothyra matocotana (P. Bartsch, 1927) - (TEREDINIDAE)
- Chamberlainia, Genus Chamberlainia C.T. Simpson, 1900 (UNIONIDAE)
- chamberlini, Rabdotus chamberlini G.D. Hanna, 1923 - (BULIMULIDAE)
- chamberlini, Pyrgulopsis chamberlini R. Hershler, 1998 - (HYDROBIIDAE)
- chamberlini, Triphora chamberlini F. Baker, 1926 - (TRIPHORIDAE)
- chambersi, Arca chambersi A.G. Beu, 1973 † - (ARCIDAE) (FOSSIL)
- chambersi, Tucetona chambersi (P. Marshall & Browne, 1909 †) - (GLYCYMERIDIDAE) (FOSSIL)
- Chambersius, Genus Chambersius Lamont, 1978 (MURCHISONIIDAE) (FOSSIL)
- chambliense, Spyroceras chambliense Foerste, 1924 † - (SPYROCERATIDAE) (FOSSIL)
- chambliensis, Ctenodonta chambliensis Foerste, 1924 † - (CTENODONTIDAE) (FOSSIL)
- chambliensis, Pholadomorpha chambliensis Foerste, 1914 † - (MODIOMORPHIDAE) (FOSSIL)
- chambliensis, Modiolopsis concentrica chambliensis Foerste, 1924 † - (MODIOMORPHIDAE) (FOSSIL)
- Chamelea, Genus Chamelea O.A.L. Mφrch, 1853 (VENERIDAE)
- chameleon, Paraoncidium chameleon (J.W. Brazier, 1886) - (ONCHIDIIDAE)
- chameleon, Calcatodrillia chameleon R.N. Kilburn, 1988 - syn of: Calcatodrillia chamaeleon R.N. Kilburn, 1988 - (PSEUDOMELATOMIDAE)
- Chametrachea, syn of: Genus Tridacna J.G. Bruguiθre, 1797 (TRIDACNIDAE)
- Chametrachea, syn of: Genus Tridacna J.G. Bruguiθre, 1797 (TRIDACNIDAE)
- CHAMIDAE Lamarck, 1809 - Family (BIVALVIA-HETERODONTA [Subclass]-EUHETERODONTA [Infraclass]-IMPARIDENTIA [Superorder]-VENERIDA [Order]-CHAMOIDEA [Superfamily])
- Chamigenus, syn of: Genus Chama C. Linnaeus, 1758 (CHAMIDAE)
- chamissoi, Auriculella chamissoi L. Pfeiffer, 1855 - (ACHATINELLIDAE)
- chamissoi, Nanina chamissoi L. Pfeiffer, 1855 - syn of: Philonesia chamissoi (L. Pfeiffer, 1855) - (ARIOPHANTIDAE)
- chamissoi, Philonesia chamissoi (L. Pfeiffer, 1855) - (EUCONULIDAE)
- Chamlongia, Genus Chamlongia R.A.M. Brandt, 1968 (TORNIDAE) (FOSSIL)
- chamnessi, Maoricrypta costata chamnessi E.J. Petuch, 1994 - (CALYPTRAEIDAE)
- chamnessi, Ecphora chamnessi E.J. Petuch, 1988 † - (MURICIDAE) (FOSSIL)
- chamoides, Cleidothaerus chamoides S. Stutchbury, 1830 - syn of: Cleidothaerus albidus (J.B.P.A. Lamarck, 1819) - (CLEIDOTHAERIDAE)
- chamorrensis, Desbruyeresia chamorrensis C. Chen, Ogura & T.A. Okutani, 2016 - (PROVANNIDAE)
- chamorrorum, Eoacmaea chamorrorum (D.R. Lindberg & G.J. Vermeij, 1985) - (EOACMAEIDAE)
- chamorrorum, Patelloida chamorrorum D.R. Lindberg & G.J. Vermeij, 1985 - (LOTTIIDAE)
- chamorum, Odostomia chamorum E. Saurin, 1958 - (PYRAMIDELLIDAE)
- Chamostraea, syn of: Genus Cleidothaerus S. Stutchbury, 1830 (CLEIDOTHAERIDAE)
- Chamostrea, syn of: Genus Cleidothaerus S. Stutchbury, 1830 (CLEIDOTHAERIDAE)
- Chamoussetia, Genus Chamoussetia Douvillι, 1911 (CADOCERATIDAE) (FOSSIL)
- chamoussetiforme, Goliathiceras chamoussetiforme Arkell, 1943 † - (CARDIOCERATIDAE) (FOSSIL)
- champaensis, Cossmannica champaensis E. Saurin, 1958 - (PYRAMIDELLIDAE)
- champaquiana, Spixia champaquiana (A. Doering, 1877) - (ODONTOSTOMIDAE)
- champaraense, Parengonoceras champaraense Benavides-Caceres, 1956 † - (KNEMICERATIDAE) (FOSSIL)
- champernowni, Champernownia champernowni (Whidborne, 1892 †) - (GOSSELETINIDAE) (FOSSIL)
- champernowni, Orthoceras champernowni Whidborne † - (ORTHOCERATIDAE) (FOSSIL)
- champernowni, Pleurotomaria champernowni Whidborne, 1892 † - syn of: Champernownia champernowni (Whidborne, 1892 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- Champernownia, Genus Champernownia Heidelberger , 2001 (GOSSELETINIDAE) (FOSSIL)
- champfauri, Sitala champfauri E. Fischer-Piette, Ch.P. Blanc, F. Blanc & F. Salvat, 1994 - (ARIOPHANTIDAE)
- championensis, Pseudotoites championensis (Crick, 1894 †) - (OTOITIDAE) (FOSSIL)
- championi, Mesembrinus championi E.C. Von Martens, 1893 - (BULIMULIDAE)
- championi, Epitonium championi W.J. Clench & H. Turner, 1952 - (EPITONIIDAE)
- championi, Habroconus championi (E.C. Von Martens, 1892) - (EUCONULIDAE)
- championi, Pseudosuccinea columella championi (E.C. Von Martens, 1899) - (LYMNAEIDAE)
- championi, Neilonella championi (A.H. Clarke, 1961) - (NEILONELLIDAE)
- championi, Tindaria championi A.H. Clarke, 1961 - syn of: Neilonella championi (A.H. Clarke, 1961) - (TINDARIIDAE)
- championi, Gemmula championi R.N. Kilburn, 1983 - (TURRIDAE)
- championi, Nephronaias championi (E.C. Von Martens, 1900) - (UNIONIDAE)
- championi, Coelocentrum championi E.C. Von Martens, 1897 - (UROCOPTIDAE)
- champlainense, Bassleroceras champlainense Kröger & Landing, 2008 † - (BASSLEROCERATIDAE) (FOSSIL)
- champlainense, Dakeoceras champlainense Kröger & Landing, 2007 † - (ELLESMEROCERATIDAE) (FOSSIL)
- champlainense, Endoceras champlainense Ruedemann, 1906 † - (ENDOCERATIDAE) (FOSSIL)
- champlainense, Ormoceras champlainense Flower, 1952 † - (ORMOCERATIDAE) (FOSSIL)
- champlainense, Stereospyroceras champlainense Flower, 1955 † - (PROTEOCERATIDAE) (FOSSIL)
- champlainense, Cyrtactinoceras champlainense Ruedemann, 1906 † - syn of: Ruedemannoceras boycii (R.P. Whitfield, 1886 †) - (PROTEOCERATIDAE) (FOSSIL)
- champlainense, Tarphyceras champlainense (Schröder, 1891 †) - (TARPHYCERATIDAE) (FOSSIL)
- champlainensis, Bucania champlainensis R.P. Whitfield, 1897 † - (BUCANIIDAE) (FOSSIL)
- Chanasia, Genus Chanasia Rollier, 1922 (OPPELIIDAE) (FOSSIL)
- chancanina, Spixia chancanina (A. Doering, 1877) - (ODONTOSTOMIDAE)
- chancei, Papustyla chancei (J.C. Cox, 1870) - (CAMAENIDAE)
- Chancelia, Subgenus Metalimax (Chancelia) P. Hagenmόller, 1855 (AGRIOLIMACIDAE)
- chancellorensis, Epitonium chancellorensis E.J. Petuch, 1988 † - (EPITONIIDAE) (FOSSIL)
- chancellorensis, Turritella chancellorensis (Oleksyshyn, 1959 †) - (TURRITELLIDAE) (FOSSIL)
- chancellorensis, Torcula chancellorensis Oleksyshyn, 1959 † - syn of: Turritella chancellorensis (Oleksyshyn, 1959 †) - (TURRITELLIDAE) (FOSSIL)
- chancellori, Lamnayella chancellori Wright & J. Kennedy, 1984 † - (LYELLICERATIDAE) (FOSSIL)
- chanchamayensis, Drymaeus chanchamayensis J.G. Hidalgo, 1870 - (BULIMULIDAE)
- chanchamayensis, Helicina schlueteri chanchamayensis A.J. Wagner, 1911 - (HELICINIDAE)
- chanchamayoensis, Nenia chanchamayoensis H.B. Preston, 1907 - syn of: Incania chacaensis (W. . Lubomirski, 1879) - (CLAUSILIIDAE)
- chanchamayoensis, Euglandina chanchamayoensis (H.B. Preston, 1909) - (SPIRAXIDAE)
- chanchapoyasense, Calaperostoma chanchapoyasense (S.I. Da Costa, 1906) - (NEOCYCLOTIDAE)
- chancharense, Epistroboceras chancharense Shimanskiy, 1967 † - (TRIGONOCERATIDAE) (FOSSIL)
- chancharensis, Dombarocanites chancharensis Ruzhentsev, 1949 † - (PROLECANITIDAE) (FOSSIL)
- chandanbariensis, Pisidium chandanbariensis H. Nesemann, S. Sharma, G. Sharma & al., 2007 - (SPHAERIIDAE)
- chandeshwariensis, Erhaia chandeshwariensis H. Nesemann, S. Sharma, G. Sharma & al., 2007 - (AMNICOLIDAE)
- chandleri, Etheripecten chandleri C.O. Waterhouse, 1982 † - (HETEROPECTINIDAE) (FOSSIL)
- chaneyi, Carinapex chaneyi S.G. Wiedrick, 2015 - (HORAICLAVIDAE)
- chaneyi, Neolepton chaneyi E.V. Coan & P.H. Valentich-Scott, 2012 - (NEOLEPTONIDAE)
- chaneyi, Amoria chaneyi H. Morrison, 2012 - (VOLUTIDAE)
- changalassensis, Virgatoptychites changalassensis Voronets, 1958 † - (POLYPTYCHITIDAE) (FOSSIL)
- changamdabiensis, Aviculoperna changamdabiensis Sijagurumayum, Singh & Kachhara, 2014 † - (PTERIIDAE) (FOSSIL)
- changarnieri, Subpulchellia changarnieri (G. Sayn, 1890 †) - (PULCHELLIIDAE) (FOSSIL)
- changensis, Diplommatina changensis O.K. Kwon & Y.C. Lee, 1991 - (DIPLOMMATINIDAE)
- changhsingense, Pachydiscoceras changhsingense Chao & Liang, 1966 † - (PSEUDOTIROLITIDAE) (FOSSIL)
- changhsingensis, Parallelodon changhsingensis Yang & al., 2016 † - (PARALLELODONTIDAE) (FOSSIL)
- Changhsingoceras, Genus Changhsingoceras Zhao & Liang, 1965 (CYCLOLOBIDAE) (FOSSIL)
- changi, Reinia changi H. Nordsieck, 2003 - (CLAUSILIIDAE)
- changi, Thaumatoptyx changi H. Nordsieck, 2003 - (CLAUSILIIDAE)
- changi, Primovula changi X.T. Ma, 1997 - syn of: Diminovula margarita (G.B. I Sowerby, 1828) - (OVULIDAE)
- Changkiuoceras, Genus Changkiuoceras Shimizu & Obata, 1935 (ENDOCERIDA (UNASSIGNED)) (FOSSIL)
- changlingpuense, Tainoceras changlingpuense J.K. Zhao, 1954 † - (TAINOCERATIDAE) (FOSSIL)
- changmeense, Uddenoceras changmeense Liang, 1987 † - (PROLECANITIDA (UNASSIGNED)) (FOSSIL)
- changningensis, Catazone changningensis Xi & Yu, 1990 † - (MURCHISONIIDAE) (FOSSIL)
- chango, Scutalus chango Araya & Breure, 2017 - (BULIMULIDAE)
- Changphaedusa, Genus Changphaedusa Motochin & Ueshima, 2017 (CLAUSILIIDAE)
- changshanense, Acaroceras changshanense B.Z. Li, 1984 † - (ACAROCERATIDAE) (FOSSIL)
- changshanense, Walcottoceras changshanense B.Z. Li, 1984 † - (ELLESMEROCERATIDAE) (FOSSIL)
- changshanense, Antacaroceras changshanense B.Z. Li, 1984 † - (ELLESMEROCERIDA (UNASSIGNED)) (FOSSIL)
- changshanense, Lunanoceras changshanense C. Chen & Z. Qi, 1979 † - (PLECTRONOCERATIDAE) (FOSSIL)
- changtingensis, Shaanxiconcha changtingensis Ding & Li, 1982 † - (SHAANXICONCHIDAE) (FOSSIL)
- changxingense, Parametacoceras changxingense J.K. Zhao & al., 1978 † - (GZHELOCERATIDAE) (FOSSIL)
- changxingense, Mingyuexiaceras changxingense J.K. Zhao & al., 1978 † - (TAPASHANITIDAE) (FOSSIL)
- changxingense, Hypophiceras changxingense Wang, 1984 † - (XENODISCIDAE) (FOSSIL)
- changxingensis, Trigonogastrites changxingensis J.K. Zhao & al., 1978 † - (PSEUDOTIROLITIDAE) (FOSSIL)
- changxingensis, Pleuronautilus changxingensis J.K. Zhao & al., 1978 † - (TAINOCERATIDAE) (FOSSIL)
- changxingensis, Tapashanites changxingensis J.K. Zhao & al., 1978 † - (TAPASHANITIDAE) (FOSSIL)
- changyangensis, Euphaedusa changyangensis C. Chen & S.Q. Zhang, 1999 - (CLAUSILIIDAE)
- changzhouensis, Valvata changzhouensis Yü, 1977 † - (VALVATIDAE) (FOSSIL)
- chani, Hallaxa chani T.M. Gosliner & J.D. Williams, 1975 - (ACTINOCYCLIDAE)
- chani, Solariella chani C. Vilvens, 2009 - (SOLARIELLIDAE)
- chankensis, Juga chankensis I.M. Moskvicheva in F. Zatrawkin, 1986 - syn of: Parajuga amgunica (I.M. Moskvicheva in F. Zatrawkin, 1986) - (SEMISULCOSPIRIDAE)
- chankensis, Pisidium chankensis V.I. Zhadin, 1952 - (SPHAERIIDAE)
- chankensis, Lanceolaria chankensis I.M. Moskvicheva, 1973 - syn of: Lanceolaria cylindrica (C.T. Simpson, 1900) - (UNIONIDAE)
- channakodiense, Cerithidium channakodiense M. Harzhauser, 2014 † - (CERITHIIDAE) (FOSSIL)
- Channelaxinus, Genus Channelaxinus P.H. Valentich-Scott & E.V. Coan, 2012 (THYASIRIDAE)
- Chanomphalus, Genus Chanomphalus H. Strebel & G.J. Pfeffer, 1880 (HELICODISCIDAE)
- chantalae, Mitrella chantalae L. Bozzetti, 2006 - (COLUMBELLIDAE)
- chantalae, Terebellopsis chantalae J.M. Pacaud & Leroy, 2006 † - (ROSTELLARIIDAE) (FOSSIL)
- chantrei, Melanopsis costata chantrei É.A.A. Locard, 1921 - (MELANOPSIDAE)
- chantrei, Leguminaia chantrei É.A.A. Locard, 1883 - syn of: Leguminaia wheatleyi (I. Lea, 1862) - (UNIONIDAE)
- chantrei, Unio chantrei É.A.A. Locard, 1883 - syn of: Unio terminalis J.R. Bourguignat, 1852 - (UNIONIDAE)
- chantrei, Pseudodon chantrei É.A.A. Locard, 1883 - syn of: Leguminaia saulcyi (J.R. Bourguignat, 1852) - (UNIONIDAE)
- chanzirensis, Assyriella naegelei chanzirensis (W. Kobelt, 1901) - (HELICIDAE)
- Chaoceras, syn of: Genus Naplesites Yatskov , 1990 (BELOCERATIDAE) (FOSSIL)
- Chaohuceras, Genus Chaohuceras Qi, 1980 (ENDOCERIDA (UNASSIGNED)) (FOSSIL)
- chaohuensis, Subcolumbites chaohuensis H. Guo, 1982 † - (COLUMBITIDAE) (FOSSIL)
- chaoi, Chaoceras chaoi Yatskov, 1990 † - syn of: Mesobeloceras acutum (Chao, 1956 †) - (BELOCERATIDAE) (FOSSIL)
- chaoi, Dieneroceras chaoi Kiparisova, 1961 † - syn of: Dieneroceras dieneri (A. Hyatt & Smith, 1905 †) - (COLUMBITIDAE) (FOSSIL)
- chaoi, Cymaclymenia chaoi W.K.C. Sun & S. Shen, 1965 † - (CYMACLYMENIIDAE) (FOSSIL)
- chaoi, Tannuella chaoi C. Chen & al., 1981 † - (HELCIONELLIDAE) (FOSSIL)
- chaotianense, Stacheoceras chaotianense J.K. Zhao & al., 1978 † - (NEOSTACHEOCERATIDAE) (FOSSIL)
- chaotianense, Pentagonoceras chaotianense J.K. Zhao & al., 1978 † - (PLEURONODOCERATIDAE) (FOSSIL)
- chaotianensis, Xenodiscus chaotianensis J.K. Zhao & al., 1978 † - (MEEKOCERATIDAE) (FOSSIL)
- chaotianensis, Tapashanites chaotianensis J.K. Zhao & al., 1978 † - (TAPASHANITIDAE) (FOSSIL)
- Chaotianoceras, Genus Chaotianoceras Zhao & Liang, 1974 (PSEUDOTIROLITIDAE) (FOSSIL)
- chaova, Zemitrella chaova L.A. Reeve, 1859 - syn of: Zemitrella choava (L.A. Reeve, 1859) - (COLUMBELLIDAE)
- chaoxianense, Nordophiceras chaoxianense H. Guo, 1982 † - (MEEKOCERATIDAE) (FOSSIL)
- chaoxianensis, Aspenites chaoxianensis H. Guo, 1982 † - (ASPENITIDAE) (FOSSIL)
- chaoxianensis, Subcolumbites chaoxianensis H. Guo, 1982 † - (COLUMBITIDAE) (FOSSIL)
- chaoxianensis, Periclaraia chaoxianensis Li & Ding, 1981 † - syn of: Periclaraia circularis Li & Ding, 1981 † - (PECTINIDAE) (FOSSIL)
- chapalensis, Planorbis chapalensis H.A. Pilsbry, 1920 - syn of: Pierosoma tenuis chapalensis (H.A. Pilsbry, 1920) - (PLANORBIDAE)
- chapalensis, Pierosoma tenuis chapalensis (H.A. Pilsbry, 1920) - (PLANORBIDAE)
- chapalensis, Anodonta chapalensis J.C.H. Crosse & P.H. Fischer, 1893 - syn of: Anodonta impura T. Say, 1829 - (UNIONIDAE)
- chaparra, Cerion chaparra C.G. Aguayo & M.I. Sánchez Roig, 1953 - (CERIONIDAE)
- chapelvillei, Sargana chapelvillei K. Bandel & D.T. Dockery, 2001 † - (SARGANIDAE) (FOSSIL)
- chapelvillensis, Anchura chapelvillensis D.T. Dockery, 1993 † - (APORRHAIDAE) (FOSSIL)
- chaperi, Lanistes chaperi (W. Kobelt, 1912) - (AMPULLARIIDAE)
- chaperi, Bithynia chaperi P.M.A. Morelet - (BITHYNIIDAE)
- chaperi, Bulimulus chaperi J.C.H. Crosse & P.H. Fischer, 1893 - syn of: Drymaeus dombeyanus (L. Pfeiffer, 1846) - (BULIMULIDAE)
- chaperi, Lopeziceras chaperi (Pictet, 1868 †) - (HIMALAYITIDAE) (FOSSIL)
- chaperi, Phaneroptyxis chaperi A.E.M. Cossmann, 1898 † - (ITIERIIDAE) (FOSSIL)
- chaperi, Dentimargo chaperi (F.P. Jousseaume, 1875) - (MARGINELLIDAE)
- chaperi, Natica chaperi J.F. Bayan, 1870 † - syn of: Ampullina acuta (J.B.P.A. Lamarck, 1804 †) - (NATICIDAE) (FOSSIL)
- chaperi, Delectopecten chaperi P. Dautzenberg & H. Fischer, 1897 - syn of: Delectopecten vitreus (J.F. Gmelin, 1791) - (PECTINIDAE)
- chaperi, Pseudosubulina chaperi (F.P. Jousseaume, 1889) - (SPIRAXIDAE)
- chaperi, Opeas chaperi F.P. Jousseaume, 1889 - (SUBULINIDAE)
- chaperi, Mastoniaeforis chaperi (F.P. Jousseaume, 1884) - (TRIPHORIDAE)
- chaperi, Iniforis chaperi F.P. Jousseaume, 1884 - syn of: Mastoniaeforis chaperi (F.P. Jousseaume, 1884) - (TRIPHORIDAE)
- chaperi, Pseudodon chaperi (J.J.M. de Morgan, 1885) - (UNIONIDAE)
- Chaperia, Genus Chaperia Munier-Chalmas, 1873 (CAPROTINIDAE) (FOSSIL)
- Chapericeras, Genus Chapericeras Hoedemaeker, 2016 (NEOCOMITIDAE) (FOSSIL)
- chapernowni, Bembexia chapernowni Whidborne, 1892 † - (EOTOMARIIDAE) (FOSSIL)
- chapini, Aspatharia chapini H.A. Pilsbry & J.C. Bequaert, 1927 - syn of: Aspatharia semicorrugata (H.B. Preston, 1909) - (IRIDINIDAE)
- chapini, Curvella chapini H.A. Pilsbry, 1919 - (SUBULINIDAE)
- chaplini, Cerion chaplini C.B. Wurtz, 1950 - (CERIONIDAE)
- chapmani, Bellerophon chapmani Blodgett, 1992 † - (BELLEROPHONTIDAE) (FOSSIL)
- chapmani, Papuina chapmani J.C. Cox, 1870 - (CAMAENIDAE)
- chapmani, Condylocardia chapmani (J.H. Gatliff & C.J. Gabriel, 1912 †) - syn of: Puyseguria chapmani (Gatlliff & C.J. Gabriel, 1912 †) - (CONDYLOCARDIIDAE) (FOSSIL)
- chapmani, Condylocardia chapmani J.H. Gatliff & C.J. Gabriel, 1912 † - syn of: Puyseguria chapmani (Gatlliff & C.J. Gabriel, 1912 †) - (CONDYLOCARDIIDAE) (FOSSIL)
- chapmani, Hemidonax chapmani J.H. Gatliff & C.J. Gabriel, 1923 - (HEMIDONACIDAE)
- chapmani, Limopsis chapmani F.A. Singleton, 1932 † - (LIMOPSIDAE) (FOSSIL)
- chapmani, Murchisonia chapmani Williams & M. Breger 1916 † - (MURCHISONIIDAE) (FOSSIL)
- chapmani, Puyseguria chapmani (Gatlliff & C.J. Gabriel, 1912 †) - (NEOLEPTONIDAE) (FOSSIL)
- chapmani, Puysegeria chapmani (J.H. Gatliff & C.J. Gabriel, 1912 †) - syn of: Puyseguria chapmani (Gatlliff & C.J. Gabriel, 1912 †) - (NEOLEPTONIDAE) (FOSSIL)
- chapmani, Nuculana chapmani Finlay, 1924 † - (NUCULANIDAE) (FOSSIL)
- chapmani, Palaeosolen chapmani (Williams & Breger 1916) † - (ORTHONOTIDAE) (FOSSIL)
- chapmani, Scutellastra chapmani (J.E. Tenison-Woods, 1875) - (PATELLIDAE)
- chapmani, Platyceras chapmani Williams & M. Breger, 1916 † - (PLATYCERATIDAE) (FOSSIL)
- chapmani, Solecurtus chapmani Imlay, 1961 † - (SOLECURTIDAE) (FOSSIL)
- chapmanni, Sculptaria chapmanni C.M.F. Ancey, 1890 - (SCULPTARIIDAE)
- chapplei, Pleurotomella chapplei (Powell, 1944 †) - (RAPHITOMIDAE) (FOSSIL)
- chapronierei, Pojetaconcha chapronierei (Pojeta & al., 1977 †) - (BRANSONIIDAE) (FOSSIL)
- chaptalii, Clio chaptalii J.E. Gray, 1850 - (CLIIDAE)
- chapuisi, Nucellopsis plicatilis chapuisi (G.P. Deshayes, 1865) - (MURICIDAE)
- chapuisi, Neomorphoceras chapuisi (Oppel, 1863 †) - (PERISPHINCTIDAE) (FOSSIL)
- chaputi, Borsonia chaputi Delpey, 1938 - (BORSONIIDAE)
- chaquensis, Pomacea chaquensis M.I. Hylton-Scott, 1948 - syn of: Pomacea canaliculata (J.B.P.A. Lamarck, 1822) - (AMPULLARIIDAE)
- chara, Cerithium chara H.A. Pilsbry, 1949 - syn of: Cerithium muscarum T. Say, 1832 - (CERITHIIDAE)
- characta, Agladrillia characta W.P. Woodring, 1970 † - (DRILLIIDAE) (FOSSIL)
- characteristica, Chathamina characteristica H.J. Finlay, 1928 - syn of: Buccinulum linea (T. Martyn, 1784) - (BUCCINIDAE)
- characteristicus, Conus characteristicus L.W. Dillwyn, 1817 - syn of: Tesselliconus caracteristicus (G. Fischer von Waldheim, 1807) - (CONIDAE)
- Charactoceras, Genus Charactoceras Foerste, 1924 (APSIDOCERATIDAE) (FOSSIL)
- Charactocerina, syn of: Genus Charactoceras Foerste, 1924 (APSIDOCERATIDAE) (FOSSIL)
- Charadreon, Genus Charadreon Woodring, 1973 (PSEUDOMELANIIDAE) (FOSSIL)
- Charadreum, Genus Charadreum Woodring, 1973 (CAENOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Charadrobia, syn of: Genus Leiostyla R.T. Lowe, 1852 (LAURIIDAE)
- charana, Turritella charana E.M. Spieker, 1922 † - syn of: Turritella abrupta E.M. Spieker, 1922 † - (TURRITELLIDAE) (FOSSIL)
- charanalense, Herculea charanalense A.A. Olsson, 1931 † - (HARPIDAE) (FOSSIL)
- charanalensis, Glyptoactis charanalensis A.A. Olsson, 1931 † - (CARDITIDAE) (FOSSIL)
- charanalensis, Melongena charanalensis A.A. Olsson, 1931 † - (MELONGENIDAE) (FOSSIL)
- charanalensis hondoensis, Glyptoactis charanalensis hondoensis Clark & J.W. Durham, 1946 - (CARDITIDAE)
- charanensis, Crassatellites charanensis N.H. Woods, 1922 † - syn of: Hybolophus nelsoni (Grzybowski, 1899 †) - (CRASSATELLIDAE) (FOSSIL)
- charanica, Saccella charanica A.A. Olsson, 1931 † - (NUCULANIDAE) (FOSSIL)
- charanica, Lamelliconcha charanica A.A. Olsson, 1931 † - (VENERIDAE) (FOSSIL)
- charapota, Petricola charapota A.A. Olsson, 1961 - syn of: Petricola insignis (G.P. Deshayes, 1854) - (VENERIDAE)
- charasense, Plectostoma charasense (J.R. le B. Tomlin, 1948) - (DIPLOMMATINIDAE)
- charasensis, Alycaeus charasensis Foon & Liew, 2017 - (CYCLOPHORIDAE)
- charasensis, Sinoennea charasensis J.R. le B. Tomlin, 1941 - (DIAPHERIDAE)
- charassa, Attenuata charassa (Finlay, 1924 †) - (RISSOIDAE) (FOSSIL)
- Charaulachella, syn of: Genus Bemella Rozanov & al., 1969 (HELCIONELLIDAE) (FOSSIL)
- Charax, syn of: Subgenus Chamalycaeus (Dicharax) W. Kobelt & O.F. von Mφllendorff, 1900 (CYCLOPHORIDAE)
- charbarensis, Volvarina charbarensis (J.C. Melvill, 1897) - (MARGINELLIDAE)
- charbarensis, Prunum charbarensis J.C. Melvill, 1897 - syn of: Volvarina charbarensis (J.C. Melvill, 1897) - (MARGINELLIDAE)
- charbarensis, Turbonilla charbarensis J.C. Melvill & R. Standen, 1901 - (PYRAMIDELLIDAE)
- charbonnieri, Limicolaria charbonnieri J.R. Bourguignat, 1889 - (ACHATINIDAE)
- charbonnieri, Cerithium charbonnieri S.A.A. Petit De La Saussaye, 1851 - syn of: Cerithidea charbonnieri (S.A.A. Petit De La Saussaye, 1851) - (CERITHIIDAE)
- charbonnieri, Cerithidea charbonnieri (S.A.A. Petit De La Saussaye, 1851) - (POTAMIDIDAE)
- charbonnieri, Unio charbonnieri J.R. Bourguignat, 1886 - syn of: Coelatura horei (E.A. Smith, 1880) - (UNIONIDAE)
- charbonnieri quadrata, Cerithidea charbonnieri quadrata G.B. II Sowerby, 1866 - syn of: Cerithidea quoyii (J.B. Hombron & C.H. Jacquinot, 1848) - (POTAMIDIDAE)
- charcoazulensis, Anadara charcoazulensis A.A. Olsson, 1942 † - (ARCIDAE) (FOSSIL)
- Charcolleria, syn of: Subgenus Cancellaria (Massyla) H. Adams & A. Adams, 1854 (CANCELLARIIDAE)
- charcoti, Buccinum charcoti É. Lamy, 1910 - syn of: Harpovoluta charcoti (É. Lamy, 1910) - (BUCCINIDAE)
- charcoti, Cerithium charcoti É. Lamy, 1905 - syn of: Cerithiopsilla charcoti (É. Lamy, 1906) - (CERITHIIDAE)
- charcoti, Cerithiopsilla charcoti (É. Lamy, 1906) - (CERITHIOPSIDAE)
- charcoti, Mitrella charcoti K. Monsecour & D. Monsecour, 2016 - (COLUMBELLIDAE)
- charcoti, Mysella charcoti É. Lamy, 1906 - (MONTACUTIDAE)
- charcoti, Leptotrophon charcoti R. Houart, 1995 - (MURICIDAE)
- charcoti, Murexsul charcoti (R. Houart, 1991) - (MURICIDAE)
- charcoti, Pareledone charcoti (L.M.A.O.E. Joubin, 1905) - (OCTOPODIDAE)
- charcoti, Basilissopsis charcoti B.A. Marshall, 1991 - (SEGUENZIIDAE)
- charcoti, Harpovoluta charcoti (É. Lamy, 1910) - (VOLUTIDAE)
- Charcotia, Genus Charcotia A.J.B.M. Vayssiθre, 1906 (CHARCOTIIDAE)
- charcotiana, Xanthodaphne charcotiana P. Bouchet & A. Warén, 1980 - (RAPHITOMIDAE)
- CHARCOTIIDAE Odhner, 1926 - Family (GASTROPODA-HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-NUDIBRANCHIA [Order])
- chardoni, Unio chardoni J.R. Bourguignat in É.A.A. Locard, 1893 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- charensis, Ohridopyrgula macedonica charensis P. Radoman, 1978 - (HYDROBIIDAE)
- charezieuxi, Turbonilla charezieuxi (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- chariclea, Odostomia chariclea J.C. Melvill, 1910 - (PYRAMIDELLIDAE)
- chariensis, Ampullaria chariensis J. Germain, 1905 - (AMPULLARIIDAE)
- chariessa, Planispira chariessa (H.A. Pilsbry, 1891) - (CAMAENIDAE)
- chariessa, Clathurella chariessa R.B. Watson, 1881 - syn of: Theta chariessa (R.B. Watson, 1881) - (CLATHURELLIDAE)
- chariessa, Anachis chariessa (J.T.L. McGinty, 1940 †) - (COLUMBELLIDAE) (FOSSIL)
- chariessa, Liratilia chariessa H.H. Suter, 1908 - syn of: Liratilia conquisita (H.H. Suter, 1907) - (COLUMBELLIDAE)
- chariessa, Costellaria chariessa J.C. Melvill, 1888 - syn of: Vexillum rubellum (A. Adams & L.A. Reeve, 1850) - (COSTELLARIIDAE)
- chariessa, Melanella chariessa (A.E. Verrill, 1884) - (EULIMIDAE)
- chariessa, Leptochiton chariessa (K.H. Barnard, 1963) - (LEPTOCHITONIDAE)
- chariessa, Mangelia chariessa J. Gardner, 1938 † - (MANGELIIDAE) (FOSSIL)
- chariessa, Cytharella chariessa Gardner, 1938 † - syn of: Mangelia chariessa J. Gardner, 1938 † - (MANGELIIDAE) (FOSSIL)
- chariessa, Mitra chariessa J.C. Melvill, 1888 - syn of: Vexillum scitulum (A. Adams, 1853) - (MITRIDAE)
- chariessa, Theta chariessa (R.B. Watson, 1881) - (RAPHITOMIDAE)
- chariessa, Daphnella chariessa H.H. Suter, 1908 - syn of: Liratilia conquisita (H.H. Suter, 1907) - (RAPHITOMIDAE)
- chariessa, Seguenzia chariessa B.A. Marshall, 1991 - (SEGUENZIIDAE)
- chariessa, Indotellina chariessa (A.E. Salisbury, 1934) - (TELLINIDAE)
- chariessa, Pleurotoma chariessa R.B. Watson, 1881 - syn of: Theta chariessa (R.B. Watson, 1881) - (TURRIDAE)
- chariessa aresta, Theta chariessa aresta W.H. Dall, 1889 - syn of: Theta chariessa (R.B. Watson, 1881) - (RAPHITOMIDAE)
- chariessa phalera, Theta chariessa phalera W.H. Dall, 1889 - syn of: Theta chariessa (R.B. Watson, 1881) - (RAPHITOMIDAE)
- chariessa tellea, Pleurotomella chariessa tellea W.H. Dall, 1889 - syn of: Theta chariessa (R.B. Watson, 1881) - (RAPHITOMIDAE)
- chariis, Callostracon chariis (R.B. Watson, 1886) - (ACTEONIDAE)
- chariis, Acteon chariis R.B. Watson, 1886 - syn of: Callostracon chariis (R.B. Watson, 1886) - (ACTEONIDAE)
- Charilda, Genus Charilda T. Iredale, 1929 (PYRAMIDELLIDAE)
- Charis, syn of: Subgenus Aspastus (Callistocharis) H.A. Pilsbry, 1900 (BOTHRIEMBRYONTIDAE)
- charis, Helicarion charis T. Iredale, 1944 - (HELICARIONIDAE)
- charis, Physematites charis Ruzhencev & Bogoslovskaya, 1978 † - (STENOGLAPHYRITIDAE) (FOSSIL)
- Charisma, Genus Charisma C. Hedley, 1915 (TROCHIDAE)
- Charites, syn of: Subgenus Albinaria (Sericata) O. Bφttger, 1878 (CLAUSILIIDAE)
- Charitodoron, Genus Charitodoron J.R. le B. Tomlin, 1932 (MITRIDAE)
- charleenae, Brookula charleenae E. Schwabe & W. Engl, 2008 - (SEGUENZIOIDEA (UNASSIGNED))
- charlenae, Praerosaria charlenae L. Dolin & P. Lozouet, 2004 † - (CYPRAEIDAE) (FOSSIL)
- charlesi, Clathropsis charlesi A. Cecalupo & I. Perugia, 2014 - (CERITHIOPSIDAE)
- charlesi, Pusia charlesi H. Turner & P. Callomon, 2001 - (COSTELLARIIDAE)
- charlesi, Favartia charlesi B. Garrigues & Lamy, 2016 - (MURICIDAE)
- charlesi, Dermomurex charlesi R. Houart & V. Héros, 2013 - (MURICIDAE)
- charlestonensis, Epitonium charlestonensis Johnson, 1931 † - (EPITONIIDAE) (FOSSIL)
- charlestonensis, Perotrochus charlestonensis T.M. Askew, 1987 - (PLEUROTOMARIIDAE)
- charlestoni, Mantelliceras charlestoni Kellum & Mintz, 1962 † - (ACANTHOCERATIDAE) (FOSSIL)
- charlestownensis, Modiomorpha charlestownensis Nettelroth † - syn of: Modiomorpha concentrica (T.A. Conrad, 1838 †) - (MODIOMORPHIDAE) (FOSSIL)
- charlesworthi, Volvulella charlesworthi R.B. Newton, 1895 † - (RHIZORIDAE) (FOSSIL)
- charlockensis, Trigonia charlockensis Kellaway & Wilson † - (TRIGONIIDAE) (FOSSIL)
- charlotia, Granaria charlotia A. Risso, 1826 - syn of: Granaria variabilis (J.P.R. Draparnaud, 1801) - (CHONDRINIDAE)
- charlottae, Goniobranchus charlottae (M. Schrödl, 1999) - (CHROMODORIDIDAE)
- charlottae, Glossodoris charlottae M. Schrödl, 1999 - syn of: Goniobranchus charlottae (M. Schrödl, 1999) - (CHROMODORIDIDAE)
- charlottae, Ostrea chilensis charlottae H.J. Finlay, 1928 - (OSTREIDAE)
- charlottae, Odostomia charlottae G.W. Nowell-Usticke, 1969 - syn of: Fargoa bushiana (P. Bartsch, 1909) - (PYRAMIDELLIDAE)
- charlottae, Tellina charlottae E.A. Smith, 1885 - (TELLINIDAE)
- charlottae, Maoritellina charlottae H.J. Finlay, 1926 - syn of: Elliptotellina urinatoria (H.H. Suter, 1911) - (TELLINIDAE)
- charlotte, Acteocina charlotte H.H. Suter, 1909 - (ACTEOCINIDAE)
- charlotteae, Peracle charlotteae A.W. Janssen & C. Little, 2010 † - (PERACLIDAE) (FOSSIL)
- charlottei, Leptinaria charlottei F. Baker, 1923 - (SUBULINIDAE)
- charlottense, Anisoceras charlottense Anderson, 1958 † - (ANISOCERATIDAE) (FOSSIL)
- charlottensis, Cerithiopsis charlottensis P. Bartsch, 1917 - (CERITHIOPSIDAE)
- charlottensis, Pleuroacanthites charlottensis Longridge & al., 2008 † - (LYTOCERATIDAE) (FOSSIL)
- charlottensis, Mytiloperna charlottensis Aberhan, 1998 † - (MALLEIDAE) (FOSSIL)
- charlottensis, Nautilus charlottensis J.J.F. Whiteaves, 1900 † - syn of: Cymatoceras carlottense J.J.F. Whiteaves, 1900 † - (NAUTILIDAE) (FOSSIL)
- charlottensis, Unio charlottensis I. Lea, 1863 - syn of: Lasmigona decorata (I. Lea, 1852) - (UNIONIDAE)
- Charlotticeras, Subgenus Fanninoceras (Charlotticeras) Smith & Tipper, 1996 (EODEROCERATIDAE) (FOSSIL)
- charlyana, Halobia charlyana Mojsisovics, 1874 † - (HALOBIIDAE) (FOSSIL)
- charlyanus, Lanceoptychites charlyanus (Diener, 1900 †) - (PTYCHITIDAE) (FOSSIL)
- charma, Levizygopleura charma Pan & Erwin, 2002 † - (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- Charmasseiceras, syn of: Genus Angulaticeras Fucini, 1903 (SCHLOTHEIMIIDAE) (FOSSIL)
- charmetanti, Leroya charmetanti A. Grandidier, 1887 - syn of: Lanistes farleri A. Craven, 1880 - (AMPULLARIIDAE)
- charmettense, Hispanipoma quaternatum charmettense P. Bartsch, 1946 - (POMATIIDAE)
- charmian, Cyclotus charmian F.W. Hutton - syn of: Gonatorhaphe fornicata macgillivrayi L. Pfeiffer - (CYCLOPHORIDAE)
- charmophron, Cyclostrema charmophron J.C. Melvill, 1906 - (LIOTIIDAE)
- charmosyne, Helicina charmosyne H.A. Pilsbry, 1933 - (HELICINIDAE)
- charmosyne, Minolia charmosyne J.C. Melvill, 1918 - syn of: Conotalopia musiva (A.A. Gould, 1861) - (SOLARIELLIDAE)
- charmosyne, Pseudominolia charmosyne J.C. Melvill, 1918 - syn of: Conotalopia musiva (A.A. Gould, 1861) - (TROCHIDAE)
- charmouthensis, Pseudohastites charmouthensis (C. Mayer, 1866 †) - (PASSALOTEUTHIDIDAE) (FOSSIL)
- charneri, Megastomia charneri (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- Charodotes, syn of: Genus Helminthoglypta C.M.F. Ancey, 1887 (HELMINTHOGLYPTIDAE)
- charon, Pernastela charon T. Iredale, 1944 - (CHAROPIDAE)
- charon, Advena charon H.B. Preston, 1913 - (EUCONULIDAE)
- charon, Scurria charon H.B. Preston, 1913 - syn of: Scurria scurra (R.P. Lesson, 1830) - (LOTTIIDAE)
- charon, Tetranota charon (Billings, 1860 †) - (PLECTONOTIDAE) (FOSSIL)
- Charonia, Genus Charonia J. von Gistel, 1848 (RANELLIDAE)
- Charoniella, syn of: Genus Sassia L.M.D. Bellardi, 1873 (RANELLIDAE)
- Charonis, syn of: Genus Charonia J. von Gistel, 1848 (RANELLIDAE)
- Charopa, Genus Charopa J.A. Albers, 1860 (CHAROPIDAE)
- charopa, Cyclostrema charopa R. Tate, 1889 - syn of: Microdiscula charopa (R. Tate, 1899) - (LIOTIIDAE)
- charopa, Microdiscula charopa (R. Tate, 1899) - (ORBITESTELLIDAE)
- charopa, Solariella charopa (R.B. Watson, 1879) - (SOLARIELLIDAE)
- charope, Benthonellania charope (J.C. Melvill & R. Standen, 1901) - (RISSOIDAE)
- Charopella, Genus Charopella T. Iredale, 1944 (CHAROPIDAE)
- CHAROPIDAE Hutton, 1884 - Family (GASTROPODA-HETEROBRANCHIA [Subclass]-PULMONATA [Infraclass]-STYLOMMATOPHORA [Order]-PUNCTOIDEA [Superfamily])
- charopiformis, Fectola charopiformis (N.W. Gardner, 1967) - (CHAROPIDAE)
- charopiformis, Charopa charopiformis N.W. Gardner, 1967 - syn of: Fectola charopiformis (N.W. Gardner, 1967) - (CHAROPIDAE)
- Charopinesta, Genus Charopinesta T. Iredale, 1944 (CHAROPIDAE)
- charopus, Solariella charopus R.B. Watson, 1879 - syn of: Solariella charopa (R.B. Watson, 1879) - (SOLARIELLIDAE)
- charpenteri, Marginodostomia charpenteri (A. Hornung & G. Mermod, 1924) - (PYRAMIDELLIDAE)
- charpenteri, Syrnola charpenteri A. Hornung & G. Mermod, 1924 - syn of: Marginodostomia charpenteri (A. Hornung & G. Mermod, 1924) - (PYRAMIDELLIDAE)
- charpenterianus, Ancylus charpenterianus J.R. Bourguignat, 1853 - (PLANORBIDAE)
- charpentieri, Bulimus charpentieri L. Pfeiffer, 1850 - syn of: Cyclodontina charpentieri L. Pfeiffer, 1850) - (BULIMULIDAE)
- charpentieri, Bythinella charpentieri (J.R. Roth, 1855) - (BYTHINELLIDAE)
- charpentieri, Campanile charpentieri J.P.S. Grateloup, 1832 † - syn of: Cerithium pseudoobeliscus (J.P.S. Grateloup, 1832 †) - (CAMPANILIDAE) (FOSSIL)
- charpentieri, Clausilia charpentieri J.G.F. de Charpentier, 1852 - syn of: Clausilia bidentata moniziana R.T. Lowe, 1852 - (CLAUSILIIDAE)
- charpentieri, Isabellaria saxicola charpentieri (L. Pfeiffer, 1849) - (CLAUSILIIDAE)
- charpentieri, Isabellaria saxicola charpentieri (H. Nordsieck, 1972) - (CLAUSILIIDAE)
- charpentieri, Corilla charpentieri (L. Pfeiffer, 1853) - (CORILLIDAE)
- charpentieri, Paltechioceras charpentieri (Schafhautl, 1847 †) - (ECHIOCERATIDAE) (FOSSIL)
- charpentieri, Hamites charpentieri Pictet & C. Roux, 1847 † - (HAMITIDAE) (FOSSIL)
- charpentieri, Helix charpentieri J.E.H. Scholtz, 1843 - syn of: Faustina faustina associata (E.A. Rossmässler, 1835) - (HELICIDAE)
- charpentieri, Monacha charpentieri A. Risso, 1826 - syn of: Eutheba cantiana (G. Montagu, 1803) - (HYGROMIIDAE)
- charpentieri, Melanopsis charpentieri A. Brot, 1879 - (MELANOPSIDAE)
- charpentieri, Brachidontes charpentieri R.W. Dunker, 1853 - syn of: Brachidontes puniceus (J.F. Gmelin, 1791) - (MYTILIDAE)
- charpentieri, Eutrephoceras charpentieri (Leymerie, 1851 †) - (NAUTILIDAE) (FOSSIL)
- charpentieri, Cyclodontina charpentieri L. Pfeiffer, 1850) - (ODONTOSTOMIDAE)
- charpentieri, Spixia charpentieri (J.P.S. Grateloup, 1850) - (ODONTOSTOMIDAE)
- charpentieri, Telescopium charpentieri B. de Basterot, 1825 † - syn of: Cerithium pseudoobeliscus (J.P.S. Grateloup, 1832 †) - (POTAMIDIDAE) (FOSSIL)
- charpentieri, Marginodostomia charpentieri (A. Hornung & G. Mermod, 1924) - (PYRAMIDELLIDAE)
- charpentieri, Vertigo charpentieri H.C. Küster, 1850 - syn of: Vertigo moulinsiana (D. Dupuy, 1849) - (VERTIGINIDAE)
- charpentieri, Eucobresia charpentieri É.A.A. Locard, 1892 - syn of: Phenacolimax glacialis (E. Forbes, 1837) - (VITRINIDAE)
- charpentieri cabirius, Bythinella charpentieri cabirius P.L. Reischütz, 1988 - (BYTHINELLIDAE)
- charpentieri lineata, Hamites charpentieri lineata Spath † - (HAMITIDAE) (FOSSIL)
- Charpentieria, Genus Charpentieria G. Stabile, 1864 (CLAUSILIIDAE)
- charpyi, Bythiospeum charpyi (A. Paladilhe, 1867) - (HYDROBIIDAE)
- charpyi, Anodonta charpyi J.R. Bourguignat, 1881 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- charpyi giganteum, Bythiospeum charpyi giganteum R. Bernasconi, 1969 - (HYDROBIIDAE)
- charretonae, Volvarina charretonae J.A. Ortea, 2014 - (MARGINELLIDAE)
- charreyi, Thiara charreyi P.M.A. Morelet, 1845 - (THIARIDAE)
- charrua, Vosseledone charrua F.J. Palacio, 1978 - (OCTOPODIDAE)
- charruana, Heleobia charruana (A.V.M.D. D'Orbigny, 1843) - (COCHLIOPIDAE)
- charruana, Littoridina charruana D'Orbigny, 1843 - syn of: Heleobia charruana (A.V.M.D. D'Orbigny, 1843) - (COCHLIOPIDAE)
- charruana, Rhipidodonta charruana (A.V.M.D. D'Orbigny, 1835) - (HYRIIDAE)
- charruana, Mytella charruana (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- charruana, Unio charruana D'Orbigny, 1835 - syn of: Rhipidodonta charruana (A.V.M.D. D'Orbigny, 1835) - (UNIONIDAE)
- charruana aethiopiformis, Rhipidodonta charruana aethiopiformis C.T. Simpson, 1900 - (HYRIIDAE)
- charruana faba, Rhipidodonta charruana faba (A.V.M.D. D'Orbigny, 1835) - (HYRIIDAE)
- charruana peraeformis, Rhipidodonta charruana peraeformis (I. Lea, 1860) - (HYRIIDAE)
- charruanus, Unio charruanus G.B. Sowerby, 1868 - syn of: Diplodon rhuacoicus (A.V.M.D. D'Orbigny, 1835) - (UNIONIDAE)
- chartacea, Kimberleytrachia chartacea F. Köhler, 2011 - (CAMAENIDAE)
- charteus, Anisus charteus (F. Held, 1837) - (PLANORBIDAE)
- charteus bavaricus, Planorbis charteus bavaricus C.A. Westerlund, 1885a - syn of: Anisus bavaricus (C.A. Westerlund, 1885) - (PLANORBIDAE)
- chartium, Buccinum chartium W.H. Dall, 1919 - (BUCCINIDAE)
- Chartocardium, Genus Chartocardium Muskhelishvili, 1980 (CARDIIDA (UNASSIGNED)) (FOSSIL)
- Chartoplax, syn of: Genus Ischnochiton J.E. Gray, 1847 (ISCHNOCHITONIDAE)
- chartoprates, Cypraecassis chartoprates F.C. Meuschen, 1786 - syn of: Cypraecassis rufa (C. Linnaeus, 1758) - (CASSIDAE)
- Chartronella, Genus Chartronella Cossman, 1902 (ATAPHRIDAE) (FOSSIL)
- Chartronia, syn of: Genus Hammatoceras Unknown (HAMMATOCERATIDAE) (FOSSIL)
- Chartroniella, syn of: Genus Chartronella Cossman, 1902 (ATAPHRIDAE) (FOSSIL)
- charybdis, Crepipatella charybdis S.S. Berry, 1940 - (CALYPTRAEIDAE)
- charybdis, Polygyratia polygyrata charybdis (O.A.L. Mörch) - (CAMAENIDAE)
- charybdis, Triphora charybdis Fernandes & A. Pimenta, 2015 - (TRIPHORIDAE)
- Charybditeuthis, syn of: Genus Pyroteuthis W.E. Hoyle, 1904 (PYROTEUTHIDAE)
- chasca, Acanthoceras chasca Benavides-Caceres, 1956 † - (ACANTHOCERATIDAE) (FOSSIL)
- chascanon, Eulima chascanon R.B. Watson, 1883 - (EULIMIDAE)
- Chascax, syn of: Genus Latirus P.D. Montfort, 1810 (FASCIOLARIIDAE)
- chascax, Leiochasmea chascax (H.A. Pilsbry, 1921) - (GALEOMMATIDAE)
- chaschuilensis, Actinodonta chaschuilensis Aceñolaza & Toselli, 1977 † - syn of: Catamarcaia chaschuilensis (Aceñolaza & Toselli, 1977 †) - (ACTINODONTIDAE) (FOSSIL)
- chaschuilensis, Catamarcaia chaschuilensis (Aceñolaza & Toselli, 1977 †) - (CATAMARCAIIDAE) (FOSSIL)
- chaseae, Cyclodontina chaseae W.B. Marshall, 1926 - (ODONTOSTOMIDAE)
- chaskanon, Vesanula chaskanon Finlay, 1926 † - (MURICIDAE) (FOSSIL)
- chasmata, Belomitra chasmata (W.H. Dall, 1927) - (BELOMITRIDAE)
- chasmata, Mangelia chasmata W.H. Dall, 1927 - syn of: Belomitra chasmata (W.H. Dall, 1927) - (MANGELIIDAE)
- chasmirhynchus, Unio chasmirhynchus É.A.A. Locard, 1899 - syn of: Unio abrantesianus É.A.A. Locard, 1899 - (UNIONIDAE)
- Chasmotheca, syn of: Genus Bufonaria H.C.F. Schumacher, 1817 (BURSIDAE)
- chastaingi, Dentimargo chastaingi (A.E.M. Cossmann, 1889 †) - (MARGINELLIDAE) (FOSSIL)
- chastelli, Kalidos chastelli (A.E.J. Férussac, 1832) - (ARIOPHANTIDAE)
- chasteri, Pisinna chasteri (J.C. Melvill & R. Standen, 1895) - (ANABATHRIDAE)
- chasteri, Barleeia chasteri J.C. Melvill & R. Standen, 1895 - syn of: Pisinna chasteri (J.C. Melvill & R. Standen, 1895) - (BARLEEIIDAE)
- chasteri, Puncturella chasteri H.K. Jordan, 1895 - syn of: Puncturella noachina (C. Linnaeus, 1771) - (FISSURELLIDAE)
- chasteri, Eulimella chasteri P. Dautzenberg, 1912 - syn of: Eulimella variabilis L. de Folin, 1870 - (PYRAMIDELLIDAE)
- Chasteria, syn of: Genus Cerithiella A.E. Verrill, 1882 (NEWTONIELLIDAE)
- chasteriana, Egilina chasteriana (J.C. Melvill, 1910) - (PYRAMIDELLIDAE)
- chasteriana, Egilina chasteriana J.C. Melvill, 1910 - syn of: Egilina chasteriana (J.C. Melvill, 1910) - (PYRAMIDELLIDAE)
- chatenayi, Clathropsis chatenayi Cecalupo & Perugia, 2017 - (CERITHIOPSIDAE)
- chathamense, Cirsotrema chathamense J. Marwick, 1928 † - (EPITONIIDAE) (FOSSIL)
- chathamensis, Acmaea chathamensis H.A. Pilsbry, 1891 - syn of: Cellana rota (J.F. Gmelin, 1791) - (ACMAEIDAE)
- chathamensis, Austrofusus chathamensis H.J. Finlay, 1928 - (BUCCINIDAE)
- chathamensis, Penion chathamensis (A.W.B. Powell, 1938) - (BUCCINIDAE)
- chathamensis, Maurea chathamensis R.K. Dell, 1950 - syn of: Calliostoma tigris (J.F. Gmelin, 1791) - (CALLIOSTOMATIDAE)
- chathamensis, Icoplax chathamensis R.K. Dell, 1960 - syn of: Onithochiton neglectus A. de Rochebrune, 1881 - (CALLOCHITONIDAE)
- chathamensis, Hebeseila chathamensis H.H. Suter, 1908 - syn of: Lyroseila cincta (F.W. Hutton, 1885) - (CERITHIOPSIDAE)
- chathamensis, Seila chathamensis H.H. Suter, 1908 - syn of: Lyroseila cincta (F.W. Hutton, 1885) - (CERITHIOPSIDAE)
- chathamensis, Thalassohelix chathamensis (H.H. Suter, 1909) - (CHAROPIDAE)
- chathamensis, Therasia chathamensis H.H. Suter, 1909 - syn of: Thalassohelix chathamensis (H.H. Suter, 1909) - (CHAROPIDAE)
- chathamensis, Liratilia conquisita chathamensis R.K. Dell, 1956 - (COLUMBELLIDAE)
- chathamensis, Condylocardia chathamensis A.W.B. Powell, 1933 - (CONDYLOCARDIIDAE)
- chathamensis, Benthocardiella chathamensis A.W.B. Powell, 1933 - syn of: Benthocardiella burtonae P.U. Middelfart, 2002 - (CONDYLOCARDIIDAE)
- chathamensis, Bernaya chathamensis W.O. Cernohorsky, 1971 † - (CYPRAEIDAE) (FOSSIL)
- chathamensis, Splendrillia chathamensis A.V. Sysoev & Y.I. Kantor, 1989 - (DRILLIIDAE)
- chathamensis, Marinula chathamensis H.J. Finlay, 1928 - syn of: Marinula filholi F.W. Hutton, 1878 - (ELLOBIIDAE)
- chathamensis, Sabinella chathamensis P. Bartsch, 1917 - (EULIMIDAE)
- chathamensis, Montfortula chathamensis (H.J. Finlay, 1928) - (FISSURELLIDAE)
- chathamensis, Limea chathamensis J. Marwick, 1928 † - (LIMIDAE) (FOSSIL)
- chathamensis, Cellana strigilis chathamensis Auct. - (NACELLIDAE)
- chathamensis, Opisthoteuthis chathamensis B.J. O'Shea, 1999 - (OPISTHOTEUTHIDAE)
- chathamensis, Chlamys chathamensis (F.W. Hutton, 1873 †) - (PECTINIDAE) (FOSSIL)
- chathamensis, Rissoina chathamensis (F.W. Hutton, 1873) - (RISSOINIDAE)
- chathamensis, Triphora chathamensis P. Bartsch, 1907 - (TRIPHORIDAE)
- chathamensis, Coelotrochus chathamensis (F.W. Hutton, 1873) - (TROCHIDAE)
- chathamensis, Polydonta chathamensis F.W. Hutton, 1873 - syn of: Coelotrochus chathamensis (F.W. Hutton, 1873) - (TROCHIDAE)
- chathamensis, Thoristella chathamensis F.W. Hutton, 1873 - syn of: Coelotrochus chathamensis (F.W. Hutton, 1873) - (TROCHIDAE)
- chathamensis, Thoristella chathamensis H.H. Suter, 1897 - syn of: Coelotrochus chathamensis (F.W. Hutton, 1873) - (TROCHIDAE)
- chathamensis, Unio chathamensis I. Lea, 1863 - syn of: Unio abbevillensis I. Lea, 1857 - (UNIONIDAE)
- chathamensis, Dosinia chathamensis J. Marwick, 1928 † - (VENERIDAE) (FOSSIL)
- chathamensis, Alcithoe chathamensis R.K. Dell, 1956 - syn of: Alcithoe wilsonae (A.W.B. Powell, 1933) - (VOLUTIDAE)
- chathamensis aucklandica, Coelotrochus chathamensis aucklandica E.A. Smith, 1902 - (TROCHIDAE)
- chathamensis benthicola, Thoristella chathamensis benthicola H.J. Finlay, 1926 - syn of: Coelotrochus chathamensis (F.W. Hutton, 1873) - (TROCHIDAE)
- chathamensis cookiana, Thoristella chathamensis cookiana A.W.B. Powell, 1934 - syn of: Coelotrochus chathamensis (F.W. Hutton, 1873) - (TROCHIDAE)
- chathamensis dunedinensis, Coelotrochus chathamensis dunedinensis (H.H. Suter, 1897) - (TROCHIDAE)
- chathamensis profunda, Maurea chathamensis profunda R.K. Dell, 1956 - syn of: Calliostoma blacki (A.W.B. Powell, 1950) - (CALLIOSTOMATIDAE)
- chathamensis profunda, Thoristella chathamensis profunda R.K. Dell, 1956 - syn of: Calliostoma blacki (A.W.B. Powell, 1950) - (TROCHIDAE)
- Chathamidea, Genus Chathamidea R.K. Dell, 1956 (MURICIDAE)
- Chathamidia, syn of: Genus Exilia T.A. Conrad, 1860 (PTYCHATRACTIDAE)
- Chathamina, syn of: Genus Buccinulum G.P. Deshayes, 1830 (BUCCINIDAE)
- chatillonense, Hecticoceras chatillonense (De Loriol, 1898 †) - (OPPELIIDAE) (FOSSIL)
- chatillonensis, Ooliticia chatillonensis (Pictet & Campiche, 1863 †) - (EUCYCLIDAE) (FOSSIL)
- chatillonensis, Turbo chatillonensis Pictet & Campiche, 1863 † - syn of: Ooliticia chatillonensis (Pictet & Campiche, 1863 †) - (TURBINIDAE) (FOSSIL)
- chatkalica, Nanaja chatkalica A.G. Kuznetsov, 1996 - (HYGROMIIDAE)
- chatkalicus, Pseudonapaeus stabilis chatkalicus A.G. Kuznetsov, 1999 - (ENIDAE)
- chatkalicus, Parasiacyclus chatkalicus Konovalova, 2015 † - (PERICYCLIDAE) (FOSSIL)
- chatnareeae, Anauchen chatnareeae S. Panha & J.B. Burch, 2002 - (HYPSELOSTOMATIDAE)
- chatryi, Hildaites chatryi Bécaud, 2006 † - (HILDOCERATIDAE) (FOSSIL)
- chattanoogaense, Pleurobema chattanoogaense I. Lea, 1858 - syn of: Pleurobema decisum I. Lea, 1831 - (UNIONIDAE)
- chattertoni, Acanthina chattertoni (R.A. Philippi, 1887 †) - (MURICIDAE) (FOSSIL)
- chattica, Tubbreva chattica P. Lozouet, 1998 † - (CINGULOPSIDAE) (FOSSIL)
- chattica, Aspalima chattica (Schnetler, 1990 †) - (LIMOPSIDAE) (FOSSIL)
- Chattina, Genus Chattina M. Huber, 2010 (CRASSATELLIDAE)
- chattolina, Macrochilina chattolina Heidelberger, 2001 † - (SOLENISCIDAE) (FOSSIL)
- chattonensis, Acteon chattonensis J. Marwick, 1929 † - (ACTEONIDAE) (FOSSIL)
- chattonensis, Anabathron chattonensis (C.R. Laws, 1948 †) - (ANABATHRIDAE) (FOSSIL)
- chattonensis, Cominella chattonensis (Finlay, 1926 †) - (BUCCINIDAE) (FOSSIL)
- chattonensis, Callochiton chattonensis E.A. Ashby, 1929 † - (CALLOCHITONIDAE) (FOSSIL)
- chattonensis, Zefallacia chattonensis J. Marwick, 1929 † - (CERITHIIDAE) (FOSSIL)
- chattonensis, Notoacmea chattonensis C.R. Laws, 1932 † - (LOTTIIDAE) (FOSSIL)
- chattonensis, Typhis chattonensis P.A. Maxwell, 1971 † - (MURICIDAE) (FOSSIL)
- chattonensis, Xymenella chattonensis (W.F. Ponder, 1972 †) - (MURICIDAE) (FOSSIL)
- chattonensis, Polinices chattonensis (J. Marwick, 1924 †) - (NATICIDAE) (FOSSIL)
- chattonensis, Odostomia chattonensis C.R. Laws, 1939 † - (PYRAMIDELLIDAE) (FOSSIL)
- chattonensis, Strioturbonilla chattonensis J. Marwick, 1929 † - (PYRAMIDELLIDAE) (FOSSIL)
- chattonensis, Solecurtus chattonensis Finlay, 1924 † - (SOLECURTIDAE) (FOSSIL)
- chattonensis, Zeacolpus chattonensis J. Marwick, 1929 † - (TURRITELLIDAE) (FOSSIL)
- chattonensis, Turia chattonensis J. Marwick, 1927 † - (VENERIDAE) (FOSSIL)
- Chattonia, Subgenus Crassatina (Chattonia) Marwick, 1929 (CRASSATELLIDAE) (FOSSIL)
- chatwini, Searlesia chatwini F.W. Harmer, 1914 † - (BUCCINIDAE) (FOSSIL)
- chatyrkulense, Pisidium chatyrkulense (Z.I. Izzatullaev & Y.I. Starobogatov, 1986) - (SPHAERIIDAE)
- chatyrkulense, Odhneripisidium chatyrkulense Z.I. Izzatullaev & Y.I. Starobogatov, 1986 - syn of: Pisidium chatyrkulense (Z.I. Izzatullaev & Y.I. Starobogatov, 1986) - (SPHAERIIDAE)
- chatzepetovkensis, Turbonitella chatzepetovkensis Jakowlew, 1899 † - (NERITOPSIDAE) (FOSSIL)
- chaubetae, Psilorthoceras chaubetae Ristedt, 1968 † - (ARIONOCERATIDAE) (FOSSIL)
- chaudhurii, Radiatula chaudhurii H.B. Preston, 1912 - (UNIONIDAE)
- chaudonensis, Leptosphinctes chaudonensis Pavia, 1983 † - (PERISPHINCTIDAE) (FOSSIL)
- chaudroni, Plectotropis chaudroni (A.R.J.B. Bavay & P. Dautzenberg, 1908) - (BRADYBAENIDAE)
- Chauliochiton, Genus Chauliochiton Hoare & Smith, 1984 (LEPTOCHITONIDAE) (FOSSIL)
- chauliodous, Acteon chauliodous Á. Valdés, 2008 - (ACTEONIDAE)
- chaunax, Vitrinula chaunax (H.A. Pilsbry & Y. Hirase) - (ARIOPHANTIDAE)
- chaunax, Cyomesus chaunax F.M. Bayer, 1971 - syn of: Latiromitra cryptodon (P. Fischer, 1883) - (COSTELLARIIDAE)
- chaunax, Euconulus chaunax H.A. Pilsbry - (EUCONULIDAE)
- chaunax, Eulima chaunax R.B. Watson, 1883 - (EULIMIDAE)
- chaunax, Teramachia chaunax F.M. Bayer, 1971 - syn of: Latiromitra cryptodon (P. Fischer, 1883) - (VOLUTIDAE)
- chaunensis, Cyclocalyx chaunensis L.A. Prozorova, 1988 - syn of: Pisidium obtusale (J.B.P.A. Lamarck, 1818) - (SPHAERIIDAE)
- Chaunoteuthis, syn of: Genus Onychoteuthis A.A.H. Lichtenstein, 1818 (ONYCHOTEUTHIDAE)
- Chaureopa, Genus Chaureopa F.M. Climo, 1985 (CHAROPIDAE)
- chaussy, Avicula trigonata chaussy J.B.C.P. de Raincourt, 1874 † - (PTERIIDAE) (FOSSIL)
- chaussyense, Epitonium chaussyense M.E.A. de Boury, 1886 † - (EPITONIIDAE) (FOSSIL)
- chaussyensis, Vulsellina chaussyensis Raincourt, 1876 † - (MALLEIDAE) (FOSSIL)
- chaussyensis, Andonia chaussyensis (A.E.M. Cossmann, 1889 †) - (TURRIDAE) (FOSSIL)
- chaussyensis, Sigmesalia chaussyensis (A.E.M. Cossmann, 1888 †) - (TURRITELLIDAE) (FOSSIL)
- chaussyensis, Mitreola chaussyensis A.E.M. Cossmann, 1907 † - syn of: Eovoluta branderi (J.L.M. Defrance, 1824 †) - (VOLUTOMITRIDAE) (FOSSIL)
- chautardi, Atrina chautardi (M. Nicklés, 1953) - (PINNIDAE)
- chautauquae, Phragmosphaera chautauquae (A.H. Clarke, 1904 †) - (PTEROTHECIDAE) (FOSSIL)
- chautauquaensis, Mapesites chautauquaensis Work & Boardman, 2003 † - (THALASSOCERATIDAE) (FOSSIL)
- chauveliana, Zonitoides chauveliana É.A.A. Locard, 1899 - syn of: Zonitoides nitidus (O.F. Müller, 1774) - (GASTRODONTIDAE)
- chauveti, Pleurotoma chauveti E. Réquien, 1848 - syn of: Chauvetia lineolata (N. Tiberi, 1868) - (TURRIDAE)
- Chauvetia, Genus Chauvetia T.A. de M. Monterosato, 1884 (BUCCINIDAE)
- Chauvetiella, syn of: Genus Chauvetia T.A. de M. Monterosato, 1884 (BUCCINIDAE)
- chauvini, Pseudopeltoceras chauvini d'Orbigny, 1842 † - (ASPIDOCERATIDAE) (FOSSIL)
- chauvinianum, Pseudopeltoceras chauvinianum d'Orbigny, 1847 † - (ASPIDOCERATIDAE) (FOSSIL)
- Chavanella, Genus Chavanella Jaworski, 1938 (CARDIIDA (UNASSIGNED)) (FOSSIL)
- chavani, Benoistia chavani J.M. Pacaud, 2015 † - (BRACHYTREMATIDAE) (FOSSIL)
- chavani, Erycinella chavani (M. Glibert, 1945 †) - (CONDYLOCARDIIDAE) (FOSSIL)
- chavani, Janthina chavani (N.H. Ludbrook, 1978 †) - (JANTHINIDAE) (FOSSIL)
- chavani, Divaricella chavani R. von Cosel, 2006 - (LUCINIDAE)
- chavani, Divalinga chavani M. Glibert, 1985 † - (LUCINIDAE) (FOSSIL)
- chavani, Tropidophora chavani E. Fischer-Piette, 1949 - (POMATIIDAE)
- Chavania, Genus Chavania E.A. Glover & J.D. Taylor, 2001 (LUCINIDAE)
- Chavanicerithium, Genus Chavanicerithium Ludbrook, 1957 (CERITHIIDAE) (FOSSIL)
- Chavchetia, Subgenus Roseniella (Chavchetia) E. Neubert 1992 (CLAUSILIIDAE)
- chavesi, Ocenebra chavesi R. Houart, 1996 - (MURICIDAE)
- chavesi, Vaginula chavesi H.R. Simroth, 1893 - syn of: Semperula parva (D.F. Heynemann, 1885) - (VERONICELLIDAE)
- chavezi, Cerberilla chavezi A. Hermosillo & Á. Valdés, 2007 - (AEOLIDIIDAE)
- chavezi, Anadara chavezi (Engerrand & Urbina, 1910 †) - (ARCIDAE) (FOSSIL)
- chazalei, Drillia chazalei P. Dautzenberg, 1900 - syn of: Crassispira chazaliei (P. Dautzenberg, 1900) - (DRILLIIDAE)
- chazaliei, Antillophos chazaliei (P. Dautzenberg, 1900) - (NASSARIIDAE)
- chazaliei, Nuculana chazaliei P. Dautzenberg, 1900 - syn of: Nuculana egregia (R.J.L. Guppy, 1882) - (NUCULANIDAE)
- chazaliei, Adrana chazaliei P. Dautzenberg, 1900 - syn of: Nuculana egregia (R.J.L. Guppy, 1882) - (NUCULANIDAE)
- chazaliei, Euvola chazaliei (P. Dautzenberg, 1900) - (PECTINIDAE)
- chazaliei, Crassispira chazaliei (P. Dautzenberg, 1900) - (PSEUDOMELATOMIDAE)
- chazaliei, Hindsiclava chazaliei P. Dautzenberg, 1900 - syn of: Crassispira chazaliei (P. Dautzenberg, 1900) - (PSEUDOMELATOMIDAE)
- chaziense, Gonioceras chaziense Ruedemann, 1906 † - (GONIOCERATIDAE) (FOSSIL)
- chazumbae, Stalactella chazumbae F.G. Thompson & E.L. Mihalcik, 2005 - (EPIROBIIDAE)
- Chazyoceras, Genus Chazyoceras Flower, 1958 (ENDOCERATIDAE) (FOSSIL)
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