- babae, Granulifusus babae R. Hadorn & K. Fraussen, 2005 - (FASCIOLARIIDAE)
- babaensis, Varioconus babaensis (E. Rolán & D. Röckel, 2001) - (CONIDAE)
- babai, Armina babai (S. Tchang, 1934) - (ARMINIDAE)
- babai, Hypselodoris babai T.M. Gosliner & D.W. Behrens, 2000 - (CHROMODORIDIDAE)
- babai, Epimenia babai L. Salvini-Plawén, 1997 - (EPIMENIIDAE)
- babai, Flabellina babai R.L. Schmekel, 1972 - (FLABELLINIDAE)
- babai, Okenia babai I. Hamatani, 1961 - (GONIODORIDIDAE)
- babai, Berthelinia babai (R.F. Burn, 1965) - (JULIIDAE)
- babai, Placida babai Ev. Marcus, 1982 - syn of: Placida dendritica (J. Alder & A. Hancock, 1843) - (LIMAPONTIIDAE)
- babai, Philine babai Á. Valdés, 2008 - (PHILINIDAE)
- babai, Phyllidia babai D.J. Brunckhorst, 1993 - (PHYLLIDIIDAE)
- babai, Elysia babai A. Pruvot-Fol, 1946 - (PLAKOBRANCHIDAE)
- babai, Marioniopsis babai N.H. Odhner, 1936 - (TRITONIIDAE)
- Babaina, syn of: Genus Babakina R.A. Roller, 1973 (FLABELLINIDAE)
- Babakina, Genus Babakina R.A. Roller, 1973 (FLABELLINIDAE)
- babaulti, Callistoplepa babaulti J. Germain, 1936 - (ACHATINIDAE)
- babaulti, Curvella babaulti J. Germain, 1923 - (SUBULINIDAE)
- babbagei, Endothyrella babbagei (G.P.L.K. Gude, 1915) - (PLECTOPYLIDAE)
- babbi, Metanachis babbi G.W. Tryon, 1883 - syn of: Metanachis marquesa (J.S. Gaskoin, 1851) - (COLUMBELLIDAE)
- babeaui, Euaspidoceras babeaui (A.V.M.D. D'Orbigny, 1847 †) - (ASPIDOCERATIDAE) (FOSSIL)
- babeensis, Synprosphyma babeensis (A.R.J.B. Bavay & P. Dautzenberg, 1899) - (CLAUSILIIDAE)
- babeensis crassitesta, Synprosphyma babeensis crassitesta H. Nordsieck, 2011 - (CLAUSILIIDAE)
- babei, Semitrochatella babei (R. Arango, 1876) - (HELICINIDAE)
- babel, Achatina babel (A.E.J. Férussac, 1832) - (ACHATINIDAE)
- babel, Cochlogena babel A.E.J. Férussac, 1832 - syn of: Achatina babel (A.E.J. Férussac, 1832) - (HELICIDAE)
- babelica, Basilissa babelica W.H. Dall, 1907 - syn of: Orectospira tectiformis (R.B. Watson, 1880) - (SEGUENZIIDAE)
- babelica, Orectospira babelica (W.H. Dall, 1907) - (TURRITELLIDAE)
- babelicum, Calliostoma babelicum (T. Habe, 1961) - (CALLIOSTOMATIDAE)
- babelis, Fusinus babelis E. Réquien, 1848 - syn of: Babelomurex cariniferus (G.B. I Sowerby, 1834) - (FASCIOLARIIDAE)
- babelis, Fusus babelis E. Réquien, 1848 - syn of: Babelomurex cariniferus (G.B. I Sowerby, 1834) - (FASCIOLARIIDAE)
- babelis, Xeroleuca babelis (P.M. Pallary, 1920) - (HYGROMIIDAE)
- babelis, Latiaxis babelis E. Réquien, 1848 - syn of: Babelomurex cariniferus (G.B. I Sowerby, 1834) - (MURICIDAE)
- babelis, Uvanilla babelis (P. Fischer, 1874) - (TURBINIDAE)
- babelis regalis, Fusus babelis regalis E. Réquien, 1848 - syn of: Babelomurex cariniferus (G.B. I Sowerby, 1834) - (FASCIOLARIIDAE)
- Babella, Subgenus Chrysallida (Babella) W.H. Dall & P. Bartsch, 1906 (PYRAMIDELLIDAE)
- babellina, Egilina babellina E. Saurin, 1958 - (PYRAMIDELLIDAE)
- Babelomurex, Genus Babelomurex G.S. Coen, 1922 (MURICIDAE)
- babelthuapi, Aaadonta constricta babelthuapi G.A. Solem, 1976 - (ENDODONTIDAE)
- babelthuapi, Palaua babelthuapi Unknown - (EUCONULIDAE)
- baberi, Cenoceras baberi (Morris & J. Lycett, 1850 †) - (CENOCERATIDAE) (FOSSIL)
- baberi, Procymatoceras baberi (Morris & J. Lycett, 1851 †) - (CYMATOCERATIDAE) (FOSSIL)
- Babiella, Genus Babiella C.J. Risso-Dominguez, 1965 (FACELINIDAE)
- babindolensis, Pseudamnicola babindolensis T.A. Neubauer, A. Kroh & al., 2015 - (HYDROBIIDAE)
- babingtoni, Vaughtia babingtoni (G.B. III Sowerby, 1892) - (MURICIDAE)
- babini, Claudeonychia babini Pojeta Jr., 1997 † - (AMBONYCHIIDAE) (FOSSIL)
- babini, Coxiconchia babini P. Sánchez, 2005 † - (COXICONCHIIDAE) (FOSSIL)
- babini, Bembexia babini (Blodgett & al., 1999 †) - (EOTOMARIIDAE) (FOSSIL)
- babini, Kersadiella babini Blodgett & al., 1999 † - syn of: Bembexia babini (Blodgett & al., 1999 †) - (EOTOMARIIDAE) (FOSSIL)
- babini, Tolmachovia babini Gutiérrez-Marco, 1997 † - (ISCHYRINIIDAE) (FOSSIL)
- Babinicardia, Genus Babinicardia Rogalla & Amler, 2006 † (HIPPOCARDIIDAE) (FOSSIL)
- Babinka, Genus Babinka Barrande, 1881 † (BABINKIDAE) (FOSSIL)
- BABINKIDAE Horný, 1960 † - Family (BIVALVIA-HETERODONTA [Subclass]-EUHETERODONTA [Infraclass]-BABINKOIDEA [Superfamily]) (FOSSIL)
- baboquivariensis, Sonorella baboquivariensis H.A. Pilsbry & J.H. Ferriss, 1915 - (HELMINTHOGLYPTIDAE)
- baboquivariensis berryi, Sonorella baboquivariensis berryi H.A. Pilsbry & J.H. Ferriss, 1923 - (HELMINTHOGLYPTIDAE)
- baboquivariensis cossi, Sonorella baboquivariensis cossi W.B. Miller, 1966 - (HELMINTHOGLYPTIDAE)
- baboquivariensis depressa, Sonorella baboquivariensis depressa H.A. Pilsbry & J.H. Ferriss, 1906 - (HELMINTHOGLYPTIDAE)
- baborense, Phyllopachyceras baborense (Coquand, 1880 †) - (PHYLLOCERATIDAE) (FOSSIL)
- babori, Milax babori W.E. Collinge, 1897 - (MILACIDAE)
- Baboria, Genus Baboria Cossmann, 1898 † (CLAUSILIIDAE) (FOSSIL)
- babugana, Taurinellushka babugana I. Balashov, 2014 - (PRISTILOMATIDAE)
- babukici, Pseudamnicola babukici Š. Brusina, 1902 † - (HYDROBIIDAE) (FOSSIL)
- babusarica, Truncatellina babusarica B.M. Pokryszko, K. Auffenberg, J.C. Hlavác & F. Naggs, 2009 - (VERTIGINIDAE)
- babylona, Andangularia babylona A. Nützel & Erwin, 2004 † - (HARPIDAE) (FOSSIL)
- Babylonella, Genus Babylonella T.A. Conrad, 1865 † (CANCELLARIIDAE) (FOSSIL)
- babylonelliformis, Alvania babylonelliformis Gürs in Gürs & Spiegler, 1999 † - (RISSOIDAE) (FOSSIL)
- Babylonia, Genus Babylonia F. Schlüter, 1838 (BABYLONIIDAE)
- babylonia, Calliotropis babylonia C. Vilvens, 2006 - (CALLIOTROPIDAE)
- babylonia, Epitonium babylonia (W.H. Dall, 1889) - (EPITONIIDAE)
- babylonia, Scalenostoma babylonia (P. Bartsch, 1912) - (EULIMIDAE)
- babylonia, Pseudoscilla babylonia (C.B. Adams, 1845) - (PYRAMIDELLIDAE)
- babylonia, Menestho babylonia C.B. Adams, 1845 - syn of: Pseudoscilla babylonia (C.B. Adams, 1845) - (PYRAMIDELLIDAE)
- babylonia, Liamorpha babylonia C.B. Adams, 1845 - syn of: Pseudoscilla babylonia (C.B. Adams, 1845) - (PYRAMIDELLIDAE)
- babylonia, Cingulina babylonia C.B. Adams, 1845 - syn of: Pseudoscilla babylonia (C.B. Adams, 1845) - (PYRAMIDELLIDAE)
- babylonia, Odostomia babylonia C.B. Adams, 1845 - syn of: Pseudoscilla babylonia (C.B. Adams, 1845) - (PYRAMIDELLIDAE)
- babylonia, Chemnitzia babylonia C.B. Adams, 1845 - syn of: Pseudoscilla babylonia (C.B. Adams, 1845) - (PYRAMIDELLIDAE)
- babylonia, Obtusella babylonia (C.B. Adams, 1845) - (RISSOIDAE)
- babylonia, Spectamen babylonia C. Vilvens, 2009 - (SOLARIELLIDAE)
- babylonia, Terebra babylonia J.B.P.A. Lamarck, 1822 - (TEREBRIDAE)
- babylonia, Turris babylonia (C. Linnaeus, 1758) - (TURRIDAE)
- babylonia assyria, Turris babylonia assyria B.M. Olivera, Seronay & A.E. Fedosov, 2010 - (TURRIDAE)
- babylonica, Ampullina babylonica Mayer-Eymar, 1889 † - syn of: Pachycrommium circumfossa (Rauff, 1884 †) - (AMPULLINIDAE) (FOSSIL)
- babylonica, Hamusina damesi babylonica W.H. Hudleston, 1892 † - (CHILODONTIDAE) (FOSSIL)
- babylonica, Anachis babylonica J.T. Kuroda & T. Habe, 1961 - (COLUMBELLIDAE)
- babylonica, Niso babylonica P. Bartsch, 1912 - syn of: Subniso rangi (L. de Folin, 1867) - (EULIMIDAE)
- babylonica, Scalenostoma babylonica P. Bartsch, 1912 - syn of: Scalenostoma babylonia (P. Bartsch, 1912) - (EULIMIDAE)
- babylonica, Nassarius babylonica R.B. Watson, 1882 - syn of: Nassarius babylonicus (R.B. Watson, 1882) - (NASSARIIDAE)
- babylonica, Nassa babylonica R.B. Watson, 1882 - syn of: Nassarius babylonicus (R.B. Watson, 1882) - (NASSARIIDAE)
- babylonica, Cerithidea babylonica Martin, 1883 † - (POTAMIDIDAE) (FOSSIL)
- babylonica, Odostomia babylonica R. Winckworth, 1940 - (PYRAMIDELLIDAE)
- babylonicum, Trigonostoma babylonicum Lea, 1833 † - (CANCELLARIIDAE) (FOSSIL)
- babylonicum, Gyrotoma babylonicum I. Lea, 1845 - (PLEUROCERIDAE)
- babylonicus, Fusus babylonicus T. Brown, 1844 - syn of: Neptunea antiqua (C. Linnaeus, 1758) - (FASCIOLARIIDAE)
- babylonicus, Nassarius babylonicus (R.B. Watson, 1882) - (NASSARIIDAE)
- BABYLONIIDAE K.H.O., 1971 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-NEOGASTROPODA [Order]-MURICOIDEA [Superfamily])
- Babylonites, Genus Babylonites Yochelson, 1956 † (OMPHALOTROCHIDAE) (FOSSIL)
- babylonius, Oenopota babylonius W.H. Dall, 1919 - (MANGELIIDAE)
- babylonius, Murex babylonius C. Linnaeus, 1758 - syn of: Turris babylonia (C. Linnaeus, 1758) - (MURICIDAE)
- baca, Cystiscus baca B.C. Cotton, 1949 - syn of: Gibberula diplostreptus (W.L. May, 1916) - (CYSTISCIDAE)
- baca, Marginella baca B.C. Cotton, 1949 - syn of: Gibberula diplostreptus (W.L. May, 1916) - (MARGINELLIDAE)
- baca, Thyasira baca Devjatilova, 1981 † - (THYASIRIDAE) (FOSSIL)
- bacachorda, Cyclochlamys bacachorda H.H. Dijkstra & P. Maestrati, 2015 - (CYCLOCHLAMYDIDAE)
- bacalladoi, Anachis bacalladoi J. Espinosa, J.A. Ortea & L. Moro, 2008 - (COLUMBELLIDAE)
- bacalladoi, Geitodoris bacalladoi J.A. Ortea, 1990 - (DISCODORIDIDAE)
- bacalladoi, Taringa bacalladoi J.A. Ortea, A.M. Pérez & E.M. Llera, 1982 - (DISCODORIDIDAE)
- bacalladoi, Turbonilla bacalladoi A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- bacalladoi, Manzonia bacalladoi W. Segers & F. Swinnen, 2002 - (RISSOIDAE)
- bacalusia, Halgerda bacalusia S.J. Fahey & T.M. Gosliner, 1999 - (DISCODORIDIDAE)
- bacata, Cyclochlamys bacata H.H. Dijkstra & B.A. Marshall, 2008 - (CYCLOCHLAMYDIDAE)
- bacata, Cetomya bacata E.M. Krylova, 2001 - (POROMYIDAE)
- Bacatigonia, Genus Bacatigonia M.R. Cooper, 2015 † (PTEROTRIGONIIDAE) (FOSSIL)
- Bacbotricula, Genus Bacbotricula Neubauer & Schneider, 2012 † (POMATIOPSIDAE) (FOSSIL)
- bacca, Achatinella abbreviata bacca L.A. Reeve, 1850 - (ACHATINELLIDAE)
- bacca, Pupa bacca W.H. Pease, 1871 - syn of: Nesopupa bacca (W.H. Pease, 1871) - (ACTEONIDAE)
- bacca, Satsuma bacca (L. Pfeiffer, 1865) - (CAMAENIDAE)
- bacca, Holopea bacca Pan & Erwin, 2002 † - syn of: Hercoglossa pavlowi Arkhangelsky, 1904 † - (HOLOPEIDAE) (FOSSIL)
- bacca, Taniella bacca (J. Marwick, 1924 †) - (NATICIDAE) (FOSSIL)
- bacca, Heshanietta bacca Pan & Erwin, 2002 † - (ORTHONEMIDAE) (FOSSIL)
- bacca, Nesopupa bacca (W.H. Pease, 1871) - (VERTIGINIDAE)
- baccala, Gulella baccala (H.B. Preston, 1913) - (STREPTAXIDAE)
- Baccalena, Genus Baccalena T. Iredale, 1937 (CAMAENIDAE)
- Baccalena, syn of: Genus Granulomelon T. Iredale, 1933 (CAMAENIDAE)
- baccans, Neoglyphioceras baccans Ruzhentsev & Bogoslovskaya, 1971 † - (GONIATITIDAE) (FOSSIL)
- baccata, Mitrella baccata (J.S. Gaskoin, 1851) - (COLUMBELLIDAE)
- baccata, Conasprella baccata (G.B. III Sowerby, 1877) - (CONIDAE)
- baccata, Globiconus baccata (G.B. III Sowerby, 1877) - syn of: Conasprella baccata (G.B. III Sowerby, 1877) - (CONIDAE)
- baccata, Pyrgula baccata Š. Brusina, 1878 † - (HYDROBIIDAE) (FOSSIL)
- baccata, Purpura baccata J.B. Hombron & C.H. Jacquinot, 1854 - syn of: Drupella cornus (P.F. Röding, 1798) - (MURICIDAE)
- baccata, Cyllene baccata (B. de Basterot, 1825 †) - (NASSARIIDAE) (FOSSIL)
- baccata, Brotia henriettae baccata (A.A. Gould, 1847) - (PACHYCHILIDAE)
- baccata, Phyllidia baccata A. Pruvot-Fol, 1957 - syn of: Phyllidia varicosa J.B.P.A. Lamarck, 1801 - (PHYLLIDIIDAE)
- baccata, Phymatopleura baccata Reed, 1944 † - (PHYMATOPLEURIDAE) (FOSSIL)
- baccata, Gulella baccata (H.B. Preston, 1913) - (STREPTAXIDAE)
- baccata, Melania baccata A.A. Gould, 1847 - syn of: Brotia henriettae baccata (A.A. Gould, 1847) - (THIARIDAE)
- baccata, Bolma baccata (J.L.M. Defrance, 1827 †) - (TURBINIDAE) (FOSSIL)
- baccata elongata, Melania baccata elongata T.N. Annandale, 1918 - syn of: Brotia henriettae baccata (A.A. Gould, 1847) - (THIARIDAE)
- baccata mariacristinae, Bolma baccata mariacristinae B.M. Landau, R. Marquet & Grigis, 2003 † - (TURBINIDAE) (FOSSIL)
- baccate, Vitrina baccate F.W. Hutton, 1849 - syn of: Candaharia rutellum (F.W. Hutton, 1849) - (VITRINIDAE)
- baccatum, Buccinum baccatum B. de Basterot, 1825 † - syn of: Cyllene baccata (B. de Basterot, 1825 †) - (BUCCINIDAE) (FOSSIL)
- baccatum, Cerithium baccatum J.B. Hombron & C.H. Jacquinot, 1852 - syn of: Clypeomorus batillariaeformis T. Habe & S. Kosuge, 1966 - (CERITHIIDAE)
- baccatum, Cerithium baccatum J.L.M. Defrance, 1847 † - syn of: Tympanotonos margaritaceus (G.B. Brocchi, 1814 †) - (CERITHIIDAE) (FOSSIL)
- baccatum, Flindersites baccatum Whitehouse, 1926 † - (LABECERATIDAE) (FOSSIL)
- baccatum, Ormoceras baccatum (Woodward, 1868) † - (ORMOCERATIDAE) (FOSSIL)
- baccatum aquensis, Buccinum baccatum aquensis J.P.S. Grateloup, 1847 † - syn of: Cyllene baccata (B. de Basterot, 1825 †) - (BUCCINIDAE) (FOSSIL)
- baccatus, Bellerophon baccatus Reed, 1927 † - (BELLEROPHONTIDAE) (FOSSIL)
- baccatus, Peculator baccatus W.O. Cernohorsky, 1980 - (VOLUTOMITRIDAE)
- baccettii, Vitrinobrachium baccettii F.L. Giusti & M. Mazzini, 1970 - (VITRINIDAE)
- bacchanalia, Alcithoe bacchanalia L. C. King, 1934 † - (VOLUTIDAE) (FOSSIL)
- baccheti, Pusia baccheti R. Salisbury & M. Herrmann, 2012 - (COSTELLARIIDAE)
- bacchia, Pilsbryspira bacchia (W.H. Dall, 1919) - (PSEUDOMELATOMIDAE)
- bacchica, Helicigona bacchica (E.C. Von Martens, 1889) - (HELICIDAE)
- Bacchites, Genus Bacchites Smith , 1927 † (JUVAVITIDAE) (FOSSIL)
- bacchus, Arcestes bacchus Mojsisovics, 1875 † - syn of: Sphingites bacchus (Mojsisovics, 1875 †) - (ARCESTIDAE) (FOSSIL)
- bacchus, Bellerophon bacchus J. Perner, 1903 † - syn of: Bellerophon scaber J. Perner, 1903 † - (BELLEROPHONTIDAE) (FOSSIL)
- bacchus, Omphaloptycha bacchus E.A.L. Kittl, 1894 † - (COELOSTYLINIDAE) (FOSSIL)
- bacchus, Pyrgulopsis bacchus R. Hershler, 1988 - (HYDROBIIDAE)
- bacchus, Bacchites bacchus (Mojsisovics, 1893 †) - (JUVAVITIDAE) (FOSSIL)
- bacchus, Sphingites bacchus (Mojsisovics, 1875 †) - (SPHINGITIDAE) (FOSSIL)
- bacciballus, Calagrassor bacciballus K. Fraussen & P. Stahlschmidt, 2016 - (BUCCINIDAE)
- bacciballus, Granulifusus bacciballus R. Hadorn & K. Fraussen, 2005 - (FASCIOLARIIDAE)
- baccifera, Rinetrigonia baccifera (R.A. Philippi, 1899 †) - (PTEROTRIGONIIDAE) (FOSSIL)
- baccinelliana, Mercuria baccinelliana D. Esu & O. Girotti, 2015 - (HYDROBIIDAE)
- bacescui, Pseudamnicola bacescui A.V. Grossu, 1986 - (HYDROBIIDAE)
- bacescui, Monachoides bacescui A.V. Grossu, 1979 - (HYGROMIIDAE)
- bacescui, Vema bacescui (A. Menzies, 1968) - (NEOPILINIDAE)
- bachelardi, Valanginites bachelardi (G. Sayn †) - (OLCOSTEPHANIDAE) (FOSSIL)
- bachelieri, Murchisonia bachelieri M. Rouault 1851 † - (MURCHISONIIDAE) (FOSSIL)
- bachi, Taramelliceras bachi (Oppel, 1863 †) - (OPPELIIDAE) (FOSSIL)
- bachi, Solaropsis bachi H.F.A. von Ihering, 1900 - (PLEURODONTIDAE)
- bachia, Odostomia bachia P. Bartsch, 1927 - (PYRAMIDELLIDAE)
- bachia, Holospira bachia P. Bartsch, 1926 - (UROCOPTIDAE)
- bachianum, Taramelliceras bachianum (Oppel, 1863 †) - (OPPELIIDAE) (FOSSIL)
- bachkovoensis, Belgrandiella bachkovoensis P. Glöer & D.G. Georgiev, 2009 - (HYDROBIIDAE)
- bachmayeri, Gyraulus bachmayeri W.R. Schlickum & F. Strauch, 1979 - (PLANORBIDAE)
- bacidifera, Bathyteuthis bacidifera C.F.E. Roper, 1968 - (BATHYTEUTHIDAE)
- Bacilia, syn of: Genus Clavagella Blainville [ex Lamarck], 1817 † (CLAVAGELLIDAE) (FOSSIL)
- bacillaris, Tornatellina bacillaris A. Mousson, 1871 - syn of: Lamellidea oblonga (W.H. Pease, 1865) - (ACHATINELLIDAE)
- bacillaris, Rissoina bacillaris Cossmann, 1899 † - (RISSOINIDAE) (FOSSIL)
- bacillaris, Torrecoptis bacillaris (C. de la Torre, 1912) - (UROCOPTIDAE)
- bacillaris albicostulata, Torrecoptis bacillaris albicostulata (C. de la Torre, 1912) - (UROCOPTIDAE)
- bacillaris boqueronis, Torrecoptis bacillaris boqueronis (H.A. Pilsbry, 1912) - (UROCOPTIDAE)
- bacillaris chambaensis, Torrecoptis bacillaris chambaensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- bacillaris exilis, Torrecoptis bacillaris exilis (C. de la Torre, 1912) - (UROCOPTIDAE)
- bacillaris maguirrensis, Torrecoptis bacillaris maguirrensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- bacillaris petrophila, Torrecoptis bacillaris petrophila (H.A. Pilsbry, 1930) - (UROCOPTIDAE)
- bacillaris petrophilla, Torrecoptis bacillaris petrophilla (H.A. Pilsbry, 1929) - (UROCOPTIDAE)
- bacillaris sordidula, Torrecoptis bacillaris sordidula (C. de la Torre, 1915) - (UROCOPTIDAE)
- bacillaris vivax, Torrecoptis bacillaris vivax (H.A. Pilsbry, 1930) - (UROCOPTIDAE)
- bacillifera, Triptychia bacillifera (Sandberger, 1875) † - (FILHOLIIDAE) (FOSSIL)
- bacilliformis, Godlewskia bacilliformis (Kozhov, 1936) - (AMNICOLIDAE)
- Bacillophaedusa, Genus Bacillophaedusa J. Grego & M. Szekeres, 2011 (CLAUSILIIDAE)
- bacillum, Chaetoderma bacillum H. Heath, 1918 - (CHAETODERMATIDAE)
- bacillum, Montiphaedusa bacillum (S.C.T. Hanley & W. Theobald, 1870) - (CLAUSILIIDAE)
- bacillum, Clavagella bacillum (G.B. Brocchi, 1814 †) - (CLAVAGELLIDAE) (FOSSIL)
- bacillum, Telostoma bacillum (J.B.P.A. Lamarck †) - (DIASTOMATIDAE) (FOSSIL)
- bacillum, Ziba bacillum (J.B.P.A. Lamarck, 1811) - (MITRIDAE)
- bacillum, Ziba bacillum L.A. Reeve, 1844 - syn of: Ziba astyagis (W.L.H. Dohrn, 1860) - (MITRIDAE)
- bacillum, Opisthosiphon bacillum C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- bacillum, Tibersyrnola bacillum (H.A. Pilsbry, 1901) - (PYRAMIDELLIDAE)
- bacillum, Triton bacillum L.A. Reeve, 1844 - syn of: Maculotriton digitale (L.A. Reeve, 1844) - (RANELLIDAE)
- bacillum, Streptostele bacillum H.A. Pilsbry, 1919 - (STREPTAXIDAE)
- Bacillum, Genus Bacillum W. Theobald, 1870 (SUBULINIDAE)
- bacillum, Metaxia bacillum (A. Issel, 1869) - (TRIPHORIDAE)
- bacillum, Turritella bacillum L.C. Kiener, 1843 - (TURRITELLIDAE)
- bacillum garciai, Opisthosiphon bacillum garciai C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- bacillum vallei, Opisthosiphon bacillum vallei C.G. Aguayo & M.L. Jaume, 1954 - (POMATIIDAE)
- bacillus, Pseudonapaeus bacillus A.G. Kuznetsov, 1999 - (ENIDAE)
- bacillus, Obeliscus bacillus (L. Pfeiffer, 1861) - (SUBULINIDAE)
- bacillus, Impages bacillus (G.P. Deshayes, 1859) - (TEREBRIDAE)
- bacillus, Terebra bacillus G.P. Deshayes, 1859 - syn of: Impages bacillus (G.P. Deshayes, 1859) - (TEREBRIDAE)
- backae, Nebularia backae W.O. Cernohorsky, 1973 - syn of: Mitra sowerbyi melvilli G.B. III Sowerby, 1882 - (MITRIDAE)
- backanensis, Clausilia backanensis A.R.J.B. Bavay & P. Dautzenberg, 1899 - (CLAUSILIIDAE)
- backeljaui, Phyllidiella backeljaui M. Domínguez, Quintas & J.S. Troncoso, 2007 - (PHYLLIDIIDAE)
- backeljaui, Macromphalus backeljaui G.T. Poppe, S.P. Tagaro & P. Stahlschmidt, 2015 - (VANIKORIDAE)
- backhuysi, Eumecostylus vicinus backhuysi A. Delsaerdt, 2010 - (BOTHRIEMBRYONTIDAE)
- backhuysi, Virpazaria backhuysi E. Gittenberger, 1969 - (SPELAEODISCIDAE)
- backhuysi, Trochomorpha backhuysi A. Delsaerdt, 2016 - (TROCHOMORPHIDAE)
- backi, Fusinus backi (L.A. Reeve, 1848) - (FASCIOLARIIDAE)
- backlundi, Sphaeromanticoceras backlundi (Holzapfel, 1899 †) - (GEPHUROCERATIDAE) (FOSSIL)
- backlundi, Bositra backlundi Wittenburg, 1910 † - (POSIDONIIDAE) (FOSSIL)
- bacona, Volvarina bacona J. Espinosa, J.A. Ortea & Y.L. Diez, 2012 - (MARGINELLIDAE)
- baconi, Bothriembryon baconi W.H. Benson, 1854 - syn of: Bothriembryon bulla (K.T. Menke, 1843) - (BOTHRIEMBRYONTIDAE)
- baconi, Bulimus baconi W.H. Benson, 1854 - syn of: Bothriembryon bulla (K.T. Menke, 1843) - (BULIMULIDAE)
- baconi, Cerion baconi P. Bartsch, 1952 - (CERIONIDAE)
- baconi, Natica baconi L.A. Reeve, 1855 - syn of: Conuber incei (R.A. Philippi, 1853) - (NATICIDAE)
- baconi, Theodoxus baconi L.A. Reeve, 1856 - (NERITIDAE)
- baconi, Ferrissia baconi (J.R. Bourguignat, 1853) - (PLANORBIDAE)
- baconi, Megapronorites baconi Miller & al., 1952 † - (PRONORITIDAE) (FOSSIL)
- baconi, Siphonaria baconi L.A. Reeve, 1856 - syn of: Siphonaria zelandica J.R.C. Quoy & J.P. Gaimard, 1833 - (SIPHONARIIDAE)
- baconi, Succinea baconi (L. Pfeiffer, 1854) - (SUCCINEIDAE)
- baconi, Pseudostomatella baconi (A. Adams, 1854) - (TROCHIDAE)
- baconi, Notovoluta baconi B.R. Wilson, 1972 - (VOLUTIDAE)
- baconica, Melanopsis baconica P. Oppenheim, 1892 † - (MELANOPSIDAE) (FOSSIL)
- baconicum, Lytoceras baconicum (Vadasz, 1910 †) - (LYTOCERATIDAE) (FOSSIL)
- baconicum, Phylloceras baconicum M. von P. Hantken in Prinz, 1904 † - (PHYLLOCERATIDAE) (FOSSIL)
- baconicum, Neoprotrachyceras baconicum (Mojsisovics, 1870 †) - (TRACHYCERATIDAE) (FOSSIL)
- baconicus, Cenoceras baconicus Vadasz, 1910 † - (CENOCERATIDAE) (FOSSIL)
- baconnierensis, Gyroma baconnierensis Oehlert & Oehlert, 1888 † - (CATANTOSTOMATIDAE) (FOSSIL)
- bacotense, Nathorstoceras bacotense (I. Balashov, 1975 †) - (ERIDITIDAE) (FOSSIL)
- Bacteridiella, Genus Bacteridiella E. Saurin, 1983 (PYRAMIDELLIDAE)
- Bacteridium, Subgenus Eulimella (Bacteridium) K.H.J. Thiele, 1929 (PYRAMIDELLIDAE)
- bactriana, Helix bactriana F.W. Hutton, 1849 - syn of: Euomphalia bactriana (F.W. Hutton, 1849) - (HELICIDAE)
- bactriana, Euomphalia bactriana (F.W. Hutton, 1849) - (HYGROMIIDAE)
- bactriana, Radix bactriana (T.N. Annandale & B. Prashad, 1919) - (LYMNAEIDAE)
- bactriana, Helicorbis bactriana Z.I. Izzatullaev, 1980 - (PLANORBIDAE)
- bactriana, Anodonta bactriana H. Rolle, 1897 - syn of: Anodonta cyrea H. Drouët, 1881 - (UNIONIDAE)
- bactrianum, Paragastrioceras bactrianum Leonova, 1992 † - (PARAGASTRIOCERATIDAE) (FOSSIL)
- bactrianus, Sicanites bactrianus Leonova, 1985 † - (MEDLICOTTIIDAE) (FOSSIL)
- bactricolus, Radiodiscus bactricolus (R.J.L. Guppy, 1868) - (HELICODISCIDAE)
- Bactritella, Genus Bactritella Shimanskiy , 1996 † (BACTRITIDAE) (FOSSIL)
- Bactrites, Genus Bactrites Sandberger , 1843 † (BACTRITIDAE) (FOSSIL)
- BACTRITIDAE Hyatt, 1884 † - Family (CEPHALOPODA-BACTRITOIDEA [Subclass]-BACTRITIDA [Order]) (FOSSIL)
- Bactritimimus, Genus Bactritimimus Flower & Gordon, 1959 † (HEMATITIDAE) (FOSSIL)
- bactritoides, Thoraloceras bactritoides Kröger & J. Evans, 2011 † - (TROEDSSONELLIDAE) (FOSSIL)
- Bactroceras, Genus Bactroceras Holm, 1898 † (BALTOCERATIDAE) (FOSSIL)
- Bactrocoptis, Subgenus Urocoptis (Bactrocoptis) H.A. Pilsbry, 1902 (UROCOPTIDAE)
- Bactrocythara, Genus Bactrocythara W.P. Woodring, 1928 (MANGELIIDAE)
- bactron, Triphora bactron K.H. Barnard, 1963 - (TRIPHORIDAE)
- Bactronophorus, Genus Bactronophorus C.M. Tapparone-Canefri, 1877 (TEREDINIDAE)
- Bactroptyxis, Genus Bactroptyxis Cossmann, 1896 † (OPISTHOBRANCHIA (UNASSIGNED)) (FOSSIL)
- Bactrospira, Subgenus Turritella (Bactrospira) Olsson, 1964 † (TURRITELLIDAE) (FOSSIL)
- Bactrotheca, Genus Bactrotheca Novak , 1891 † (ORTHOTHECIDAE) (FOSSIL)
- Bacula, Genus Bacula H. Adams & A. Adams, 1863 (EULIMIDAE)
- baculata, Cassitella baculata Malinky & Skovsted, 2004 † - (COLEOLIDAE) (FOSSIL)
- baculiforme, Orthoceras baculiforme Salter † - (ORTHOCERATIDAE) (FOSSIL)
- baculiformis, Belemnopsis baculiformis Riegraf, 1980 † - (BELEMNOPSEIDAE) (FOSSIL)
- baculiformis, Strioterebrum baculiformis H.A. Pilsbry & Johnson, 1917 - (TEREBRIDAE)
- Baculina, Genus Baculina D'Orbigny, 1850 † (BOCHIANITIDAE) (FOSSIL)
- Baculites, Genus Baculites Lamarck , 1799 † (BACULITIDAE) (FOSSIL)
- BACULITIDAE Gill, 1871 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-TURRILITINA [Order]-TURRILITOIDEA [Superfamily]) (FOSSIL)
- Baculities, syn of: Genus Baculites Lamarck , 1799 † (BACULITIDAE) (FOSSIL)
- baculitoides, Bochianites baculitoides Arnould-Saget, 1953 † - (BOCHIANITIDAE) (FOSSIL)
- baculoide, Sciponoceras baculoide (Mantell, 1822 †) - (BACULITIDAE) (FOSSIL)
- baculoides, Endoceras baculoides C.H. Blake, 1882 † - (ENDOCERATIDAE) (FOSSIL)
- baculum, Cerithiopsis baculum A. Adams, 1861 - (CERITHIOPSIDAE)
- baculum, Homalopoma baculum (P.P. Carpenter, 1864) - (COLLONIIDAE)
- baculum, Vicarya baculum Yokoyama, 1926 † - syn of: Vicarya yokoyamai T. Takeyama, 1933 † - (POTAMIDIDAE) (FOSSIL)
- baculum, Torrecoptis baculum (H.A. Pilsbry, 1903) - (UROCOPTIDAE)
- baculumpastoris, Pyramidelloides baculumpastoris (J.C. Melvill & R. Standen, 1896) - (EULIMIDAE)
- baculumpastoris, Teretianax baculumpastoris J.C. Melvill & R. Standen, 1896 - syn of: Pyramidelloides baculumpastoris (J.C. Melvill & R. Standen, 1896) - (EULIMIDAE)
- baculumpastoris, Rissoina baculumpastoris J.C. Melvill & R. Standen, 1896 - syn of: Pyramidelloides baculumpastoris (J.C. Melvill & R. Standen, 1896) - (RISSOINIDAE)
- baculus, Baculites baculus F.B. Meek & Hayden, 1861 † - (BACULITIDAE) (FOSSIL)
- baculus, Mitrella baculus (L.A. Reeve, 1859) - (COLUMBELLIDAE)
- baculus, Triphora baculus K.H. Barnard, 1963 - (TRIPHORIDAE)
- badenia, Balcis badenia C.R. Laws 1939 † - (EULIMIDAE) (FOSSIL)
- Badenia, syn of: Genus Ovirissoa C. Hedley, 1916 (RISSOIDAE)
- badenica, Cypraeerato badenica D. Fehse & J. Grego, 2012 † - (TRIVIIDAE) (FOSSIL)
- badeniense, Europicardium badeniense Kokay, 1996 † - (CARDIIDAE) (FOSSIL)
- badenpowelli, Chlamys badenpowelli Weir, 1929 † - (PECTINIDAE) (FOSSIL)
- badenpowelli, Leucosyrinx badenpowelli R.K. Dell, 1990 - (PSEUDOMELATOMIDAE)
- badense, Fissidentalium badense (M. Hörnes, 1856 †) - (DENTALIIDAE) (FOSSIL)
- badensis, Bythinella badensis H.D. Boeters, 1981 - (BYTHINELLIDAE)
- badensis, Schilderia badensis Schilder, 1927 † - syn of: Zonaria dertamygdaloides F. Sacco, 1894 † - (CYPRAEIDAE) (FOSSIL)
- badensis, Nassarius badensis (P. Partsch in R. Hoernes, 1852 †) - (NASSARIIDAE) (FOSSIL)
- badensis, Gemmula badensis (R. Hoernes, 1875 †) - (TURRIDAE) (FOSSIL)
- badensis, Turritella badensis B. de Basterot, 1825 † - (TURRITELLIDAE) (FOSSIL)
- badensis, Turritella turris badensis F. Sacco, 1895 - (TURRITELLIDAE)
- badensis, Unio badensis F. Haas, 1910 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- badensis, Miozonites algiroides badensis (Jooss, 1924 †) - (ZONITIDAE) (FOSSIL)
- Badepigrus, Genus Badepigrus T. Iredale, 1955 (ANABATHRIDAE)
- badgeraensis, Palaeosolen badgeraensis Dickins, 1963 † - (ORTHONOTIDAE) (FOSSIL)
- badgerensis, Pomatiopsis badgerensis G. Johnston, 1879 - syn of: Coxiella striata (L.A. Reeve, 1842) - (POMATIOPSIDAE)
- badia, Acmaea badia W.R.B. Oliver, 1926 - syn of: Notoacmea badia (W.R.B. Oliver, 1926) - (ACMAEIDAE)
- badia, Sulcularia badia C.S. Rafinesque, 1831 - syn of: Lasmigona holstonia I. Lea, 1838 - (ACTEOCINIDAE)
- badia, Amastra badia D.D. Baldwin, 1895 - (AMASTRIDAE)
- badia, Badepigrus badia (W.F. Petterd, 1884) - (ANABATHRIDAE)
- badia, Searlesia badia (A. Adams, 1863) - (BUCCINIDAE)
- badia, Chondrina badia A. Moquin-Tandon, 1856 - syn of: Chondrina tenuimarginata C. des Moulins, 1835 - (CHONDRINIDAE)
- badia, Pyrostoma badia (C. Pfeiffer, 1828) - (CLAUSILIIDAE)
- badia, Columbella badia J.E. Tenison-Woods, 1876 - syn of: Mitrella pulla (J.S. Gaskoin, 1851) - (COLUMBELLIDAE)
- badia, Erosaria badia J.F. Gmelin, 1791 - syn of: Erosaria helvola (C. Linnaeus, 1758) - (CYPRAEIDAE)
- badia, Agladrillia badia J.H. McLean & L.H. Poorman, 1971 - (DRILLIIDAE)
- badia, Sticteulima badia (R.B. Watson, 1897) - (EULIMIDAE)
- badia, Lugubrilaria badia (C.F.F. von Krauss, 1848) - (FASCIOLARIIDAE)
- badia, Helicodonta badia A.E.J. Férussac, 1832 - (HELICODONTIDAE)
- badia, Monacha badia B. Hausdorf, 2000 - (HYGROMIIDAE)
- badia, Notoacmea badia (W.R.B. Oliver, 1926) - (LOTTIIDAE)
- badia, Lymnaea badia (H.C. Küster, 1862) - (LYMNAEIDAE)
- badia, Agathotoma candidissima badia (L.A. Reeve, 1846) - (MANGELIIDAE)
- badia, Mitra badia L.A. Reeve, 1844 - (MITRIDAE)
- badia, Orania badia (L.A. Reeve, 1845) - (MURICIDAE)
- badia, Nassaria badia J.H.F. Link, 1807 - syn of: Pollia fumosus (L.W. Dillwyn, 1817) - (NASSARIIDAE)
- badia, Nassa badia A. Adams, 1852 - syn of: Nassarius olivaceus (J.G. Bruguière, 1789) - (NASSARIIDAE)
- badia, Glyptophysa badia (A. Adams & G.F. Angas, 1864) - (PLANORBIDAE)
- badia, Pleurodonte badia A.E.J. Férussac, 1832 - (PLEURODONTIDAE)
- badia, Tropaeas badia (A. Adams, 1863) - (PYRAMIDELLIDAE)
- badia, Rissoa badia W.F. Petterd, 1884 - syn of: Badepigrus badia (W.F. Petterd, 1884) - (RISSOIDAE)
- badia, Rissoa badia R.B. Watson, 1886 - syn of: Amphithalamus jacksoni (J.W. Brazier, 1895) - (RISSOIDAE)
- badia, Duplicaria badia (G.P. Deshayes, 1859) - (TEREBRIDAE)
- badia, Melanoides badia (J. Henderson, 1898) - (THIARIDAE)
- badia, Pleurotoma badia L.A. Reeve, 1846 - syn of: Agathotoma candidissima (C.B. Adams, 1845) - (TURRIDAE)
- badia, Venus badia H.S. Holten, 1802 - syn of: Lamelliconcha unicolor (G.B. I Sowerby, 1835) - (VENERIDAE)
- badia, Venus badia J.E. Gray, 1838 - syn of: Lamelliconcha unicolor (G.B. I Sowerby, 1835) - (VENERIDAE)
- badia alpina, Pyrostoma badia alpina H. Nordsieck, 2006 - (CLAUSILIIDAE)
- badia cacuminis, Pyrostoma badia cacuminis (M. Klemm, 1969) - (CLAUSILIIDAE)
- badia carinthiaca, Pyrostoma badia carinthiaca (A. Schmidt, 1856) - (CLAUSILIIDAE)
- badia crispulata, Pyrostoma badia crispulata (C.A. Westerlund, 1884) - (CLAUSILIIDAE)
- badia fontana, Pyrostoma badia fontana (L. Pfeiffer, 1848) - (CLAUSILIIDAE)
- badia mucida, Pyrostoma badia mucida (E.A. Rossmässler, 1835) - (CLAUSILIIDAE)
- badida, Luria badida G.S. Coen, 1949 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- badiella, Pseudobithynia badiella (H.C. Küster, 1853) - (BITHYNIIDAE)
- badiella, Trochulus badiella B. Ziegler - syn of: Trichia plebeia (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- badiella, Paludina badiella H.C. Küster, 1853 - syn of: Pseudobithynia badiella (H.C. Küster, 1853) - (VIVIPARIDAE)
- badiella candiota, Bythinia badiella candiota C.A. Westerlund, 1886 - syn of: Bithynia candiota (C.A. Westerlund, 1886) - (AMNICOLIDAE)
- badiella saulcyi, Pseudobithynia badiella saulcyi (J.R. Bourguignat, 1853) - syn of: Pseudobithynia saulcyi (J.R. Bourguignat, 1853) - (BITHYNIIDAE)
- badiellus, Unio badiellus H. Drouët, 1888 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- badifasciata, Bathytoma badifasciata N. Puillandre, A.V. Sysoev & al., 2010 - (BORSONIIDAE)
- Badiofaux, Genus Badiofaux H.A. Pilsbry, 1941 (UROCOPTIDAE)
- badionitens, Cypraea badionitens J.C. Melvill, 1888 - syn of: Cypraea pantherina J. Lightfoot, 1786 - (CYPRAEIDAE)
- badioriva, Talochlamys badioriva A.G. Beu & T.A. Darragh, 2001 † - (PECTINIDAE) (FOSSIL)
- badiosus, Napaeus badiosus (P.B. Webb & S. Berthelot, 1833) - (ENIDAE)
- Badiotella, Genus Badiotella Bittner, 1890 † (LIMIDAE) (FOSSIL)
- badiotica, Eunema badiotica E.A.L. Kittl, 1891 † - (LOPHOSPIRIDAE) (FOSSIL)
- badioticum, Audouliceras badioticum (Uhlig, 1888 †) - (ANCYLOCERATIDAE) (FOSSIL)
- badioticus, Helicostyla badioticus E.A.L. Kittl, 1894 † - (BRADYBAENIDAE) (FOSSIL)
- Badiotites, Genus Badiotites Mojsisovics , 1879 † (BADIOTITIDAE) (FOSSIL)
- BADIOTITIDAE Hyatt, 1900 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-CERATITIDA [Order]-CERATITOIDEA [Superfamily]) (FOSSIL)
- badisparsa, Crepidula badisparsa R. Collin, 2005 - (CALYPTRAEIDAE)
- badistes, Aplysia badistes H.A. Pilsbry, 1951 - (APLYSIIDAE)
- Badistes, Genus Badistes A. Gould, 1862 (CAMAENIDAE)
- badium, Aphanoconia badium (P.B. Schmacker & O. Böttger, 1891) - (HELICINIDAE)
- badius, Scutalus badius G.B. I Sowerby, 1835 - syn of: Vermiculatus bicolor (G.B. I Sowerby, 1835) - (BULIMULIDAE)
- badius, Sirius badius (J.E. Tenison-Woods, 1878) - (CAPULIDAE)
- badius, Capulus badius R.W. Dunker, 1882 - syn of: Capulus violaceus (G.F. Angas, 1867) - (CAPULIDAE)
- badius, Conus badius L.C. Kiener, 1845 - syn of: Rhizoconus namocanus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- badius, Epigrus badius (W.F. Petterd, 1884) - (EPIGRIDAE)
- badius, Leptochiton badius (C. Hedley & A.F.B. Hull, 1909) - (LEPTOCHITONIDAE)
- badius, Trochus badius W. Wood, 1828 - syn of: Nassarius eximius (H. Adams, 1872) - (TROCHIDAE)
- badius, Unio badius Kokeil, 1831 - syn of: Unio crassus L. Philipsson in A. Retzius, 1788 - (UNIONIDAE)
- badjavensis, Asperitas trochus badjavensis (B. Rensch, 1930) - (DYAKIIDAE)
- badlandsensis, Belemnitella badlandsensis Landman & al., 2013 † - (BELEMNITELLIDAE) (FOSSIL)
- Badouceras, Genus Badouceras Chen & Liu in Lu, Chu & al., 1976 † (ORTHOCERIDA (UNASSIGNED)) (FOSSIL)
- Badouxia, Genus Badouxia Guex & Taylor, 1976 † (PSILOCERATIDAE) (FOSSIL)
- badri, Uchauxia badri Abbass † - (CERITHIIDAE) (FOSSIL)
- badrii, Cancellaria badrii Abbass, 1972 † - (CANCELLARIIDAE) (FOSSIL)
- badrii, Volutilithes badrii Abbass, 1967 † - (VOLUTIDAE) (FOSSIL)
- baea, Varicorbula baea W.P. Woodring, 1982 † - (CORBULIDAE) (FOSSIL)
- baegerti, Turbonilla baegerti P. Bartsch, 1917 - (PYRAMIDELLIDAE)
- baenai, Volvarina baenai J. Espinosa & J.A. Ortea, 2003 - (MARGINELLIDAE)
- Baeolidia, Genus Baeolidia L.S.R. Bergh, 1888 (AEOLIDIIDAE)
- Baeopleuroceras, Genus Baeopleuroceras Williams, 1935 † (NEPHRITICERATIDAE) (FOSSIL)
- Baequaert, syn of: Genus Leptocala C.M.F. Ancey, 1888 (ACHATINIDAE)
- baeri, Pomacea baeri (P. Dautzenberg, 1901) - (AMPULLARIIDAE)
- baeri, Effusa baeri (P. Dautzenberg, 1901) - syn of: Pomacea baeri (P. Dautzenberg, 1901) - (AMPULLARIIDAE)
- baeri, Charactoceras baeri (F.B. Meek & A.H. Worthen †) - (APSIDOCERATIDAE) (FOSSIL)
- baeri, Buccinum baeri A.T. von Middendorff, 1848 - (BUCCINIDAE)
- baeri, Bostryx baeri P. Dautzenberg, 1901 - (BULIMULIDAE)
- baeri, Labyrinthus tarapotensis baeri (P. Dautzenberg, 1902) - (CAMAENIDAE)
- baeri, Didacna baeri (O.A. Grimm, 1877) - (CARDIIDAE)
- baeri, Plicaustraconus baeri (D. Röckel & W. Korn, 1992) - (CONIDAE)
- baeri, Plicaustraconus baeri D. Röckel & W. Korn, 1992 - syn of: Plicaustraconus baeri (D. Röckel & W. Korn, 1992) - (CONIDAE)
- baeri, Vexillum baeri G.T. Poppe, S.P. Tagaro & R. Salisbury, 2009 - (COSTELLARIIDAE)
- baeri, Helix baeri P. Dautzenberg, 1902 - syn of: Labyrinthus tarapotensis baeri (P. Dautzenberg, 1902) - (HELICIDAE)
- baeri, Limax baeri H.R. Simroth, 1898 - syn of: Caspilimax keyserlingi (E.C. Von Martens, 1880) - (LIMACIDAE)
- baeri, Neocancilla baeri H. Turner & W.O. Cernohorsky, 2003 - (MITRIDAE)
- baeri, Anodonta baeri V.V. Bogatov, Y.I. Starobogatov & L.A. Prozorova, 2005 - syn of: Anodonta anatina (C. Linnaeus, 1758) - (UNIONIDAE)
- baerii, Caspia baerii (S. Clessin & W. Dybowski, 1887) - (HYDROBIIDAE)
- baerii polium, Buccinum baerii polium W.H. Dall, 1907 - syn of: Buccinum polium W.H. Dall, 1907 - (BUCCINIDAE)
- baerorum, Mitra baerorum G.T. Poppe & S.P. Tagaro, 2010 - (MITRIDAE)
- baetica, Achatinella baetica J.W. Mighels - syn of: Amastra spirizona (A.E.J. Férussac, 1834) - (ACHATINELLIDAE)
- baetica, Flabellina baetica J.C. García-Gómez, 1984 - (FLABELLINIDAE)
- baetica, Murex baetica L.A. Reeve, 1845 - syn of: Ocinebrina edwardsi (B.C.M. Payraudeau, 1826) - (MURICIDAE)
- baetica, Olivella baetica P.P. Carpenter, 1864 - (OLIVELLIDAE)
- baetica, Sphincterochila baetica (E.A. Rossmässler, 1854) - (SPHINCTEROCHILIDAE)
- baeticatus, Napaeus baeticatus (Webb & Berthelot, 1833) - (ENIDAE)
- baeticus, Mesarion baeticus C. Garrido, J. Castillejo & J. Iglesias, 1994 - (ARIONIDAE)
- baeticus, Theodoxus baeticus J.B.P.A. Lamarck, 1822 - (NERITIDAE)
- baeticus, Unio baeticus W. Kobelt, 1887 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- baezensis, Drymaeus baezensis (J.G. Hidalgo, 1866) - (BULIMULIDAE)
- baezensis, Bulimus baezensis J.G. Hidalgo, 1869 - syn of: Drymaeus baezensis (J.G. Hidalgo, 1866) - (BULIMULIDAE)
- baffinense, Cyrtogomphoceras baffinense Foerste, 1928 † - (CYRTOGOMPHOCERATIDAE) (FOSSIL)
- baffinense, Cyrtogomphoceras baffinense Roy, 1941 † - syn of: Cyrtogomphoceras baffinense Foerste, 1928 † - (CYRTOGOMPHOCERATIDAE) (FOSSIL)
- baffinense, Beloitoceras baffinense (Schuchert, 1900 †) - (ONCOCERATIDAE) (FOSSIL)
- baffinense, Westonoceras baffinense Schuchert, 1900 † - syn of: Beloitoceras baffinense (Schuchert, 1900 †) - (WESTONOCERATIDAE) (FOSSIL)
- baffinensis, Cyrtoceras baffinensis Schuchert, 1900 † - syn of: Beloitoceras baffinense (Schuchert, 1900 †) - (ONCOCERIDA (unassigned)) (FOSSIL)
- bagaensis, Philinopsis bagaensis J.A. Ortea, L. Moro & J. Espinosa, 2007 - (AGLAJIDAE)
- bagaensis, Alcadia nuda bagaensis C.G. Aguayo, 1953 - (HELICINIDAE)
- bagdadensis, Unio bagdadensis J.R. Bourguignat, 1852 - syn of: Coelatura aegyptiaca (F. Cailliaud, 1827) - (UNIONIDAE)
- bagei, Philobrya bagei C. Hedley, 1916 - syn of: Philobrya sublaevis J.P.L. Pelseneer, 1903 - (PHILOBRYIDAE)
- Bageites, Genus Bageites Zaborski , 1998 † (PSEUDOTISSOTIIDAE) (FOSSIL)
- Bagenovia, Genus Bagenovia Horný , 1957 † (CAMBRIDIIDAE) (FOSSIL)
- Bagenoviella, Genus Bagenoviella Aksarina, 1968 † (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- baghensis, Breviarca baghensis Kumar & al., 2016 † - (NOETIIDAE) (FOSSIL)
- baghensis, Agnomyax baghensis Chiplonkar & Badve 1972 † - (TELLINIDAE) (FOSSIL)
- bagidaensis, Bankia bagidaensis G.F. Roch, 1929 - syn of: Bankia bipennata (W. Turton, 1819) - (TEREDINIDAE)
- Baglivia, Genus Baglivia Brusina, 1892 † (HYDROBIIDAE) (FOSSIL)
- bagliviaeformis, Iglica bagliviaeformis H. Schütt, 1970 - (HYDROBIIDAE)
- bagnarai, Sonorella bagnarai W.B. Miller, 1967 - (HELMINTHOGLYPTIDAE)
- bagne, Persicula bagne M.J. Faber, 2006 - (CYSTISCIDAE)
- Bagnolites, Genus Bagnolites Donovan , 1998 † (ARIETITIDAE) (FOSSIL)
- bagoti, Semotrachia bagoti G.A. Solem, 1993 - (CAMAENIDAE)
- bagsana, Hemiphaedusa bagsana P.B. Schmacker & O. Böttger, 1891 - (CLAUSILIIDAE)
- bagualesia, Panopea bagualesia H.F.A. von Ihering, 1907 † - (HIATELLIDAE) (FOSSIL)
- baguenai, Nassa baguenai J. Giner Mari, 1934 - syn of: Nassarius albescens (R.W. Dunker, 1846) - (NASSARIIDAE)
- bahamasensis, Persicula bahamasensis E.J. Petuch, 2002 - (CYSTISCIDAE)
- bahamasensis, Splendrillia bahamasensis P.J. Fallon, 2016 - (DRILLIIDAE)
- bahamasensis, Antillophos bahamasensis E.J. Petuch, 2002 - syn of: Antillophos bahamensis E.J. Petuch, 2002 - (NASSARIIDAE)
- bahamasensis, Oliva bahamasensis E.J. Petuch & D.M. Sargent, 1986 - (OLIVIDAE)
- bahamensis, Drymaeus bahamensis L. Pfeiffer, 1862 - (BULIMULIDAE)
- bahamensis, Plagioptycha bahamensis (L. Pfeiffer, 1845) - (CEPOLIDAE)
- bahamensis, Lindaconus bahamensis (D.L.N. Vink & D. Röckel, 1995) - (CONIDAE)
- bahamensis, Cerodrillia bahamensis (P. Bartsch, 1943) - (DRILLIIDAE)
- bahamensis, Epitonium bahamensis W.H. Dall, 1889 - syn of: Epitonium novangliae (J.P.Y. Couthouy, 1838) - (EPITONIIDAE)
- bahamensis, Asperiscala bahamensis Piele, 1926 - syn of: Epitonium novangliae (J.P.Y. Couthouy, 1838) - (EPITONIIDAE)
- bahamensis, Alcadia bahamensis (L. Pfeiffer, 1822) - (HELICINIDAE)
- bahamensis, Schasicheila bahamensis (L. Pfeiffer, 1862) - (HELICINIDAE)
- bahamensis, Stenoplax bahamensis P. Kaas & R.A. Van Belle, 1987 - (ISCHNOCHITONIDAE)
- bahamensis, Antillophos bahamensis E.J. Petuch, 2002 - (NASSARIIDAE)
- bahamensis, Polinices bahamensis W.H. Dall, 1925 - syn of: Sigatica semisulcata (Gray, 1839) - (NATICIDAE)
- bahamensis, Cymbovula bahamensis (C.N. Cate, 1973) - (OVULIDAE)
- bahamensis, Cymbula bahamensis C.N. Cate, 1973 - syn of: Cymbovula acicularis (J.B.P.A. Lamarck, 1811) - (PATELLIDAE)
- bahamensis, Martesia bahamensis P. Bartsch & H.A. Rehder, 1945 - syn of: Martesia fragilis A.E. Verrill & K.J. Bush, 1898 - (PHOLADIDAE)
- bahamensis, Polygyra plana bahamensis E.G. Vanatta, 1919 - (POLYGYRIDAE)
- bahamensis, Opisthosiphon bahamensis R.J. Shuttleworth, 1865 - syn of: Opisthosiphon bahamiense (R.J. Shuttleworth, 1865) - (POMATIIDAE)
- bahamensis, Eupera bahamensis (W.J. Clench, 1938) - (SPHAERIIDAE)
- bahamensis, Truncatella bahamensis W.J. Clench & H. Turner, 1948 - (TRUNCATELLIDAE)
- bahamensis, Brachypodella bahamensis (L. Pfeiffer, 1860) - (UROCOPTIDAE)
- bahamensis, Novastoa bahamensis R.E. Golding, R. Bieler, T.A. Rawlings & T.M. Collins, 2014 - (VERMETIDAE)
- bahamensis, Veronicella bahamensis W.H. Dall, 1905 - (VERONICELLIDAE)
- bahamensis tortugensis, Drymaeus bahamensis tortugensis H.A. Pilsbry & E.G. Vanatta, 1928 - (BULIMULIDAE)
- bahamiense, Opisthosiphon bahamiense (R.J. Shuttleworth, 1865) - (POMATIIDAE)
- bahamiense abacoellus, Opisthosiphon bahamiense abacoellus P. Bartsch, 1946 - (POMATIIDAE)
- bahamiense exumaensis, Opisthosiphon bahamiense exumaensis P. Bartsch, 1946 - (POMATIIDAE)
- bahamiense insulaefelis, Opisthosiphon bahamiense insulaefelis W.J. Clench, 1938 - (POMATIIDAE)
- bahamiensis, Polinices bahamiensis W.H. Dall, 1925 - syn of: Sigatica semisulcata (Gray, 1839) - (NATICIDAE)
- bahamondei, Hemiliostraca bahamondei H.A. Rehder, 1980 - (EULIMIDAE)
- bahamondei, Zeidora bahamondei H.A. Rehder, 1980 - (FISSURELLIDAE)
- bahamondei, Gaimardia bahamondei R. Osorio & J.P. Arnaud, 1984 - (GAIMARDIIDAE)
- bahamondei, Trophon bahamondei J.H. McLean & B.G. Andrade, 1982 - (MURICIDAE)
- bahamondina, Scurria bahamondina (Ramirez-Bohme, 1974) - (LOTTIIDAE)
- bahamondina, Collisella bahamondina R. Ramírez, 1974 - syn of: Scurria araucana (A.V.M.D. D'Orbigny, 1839) - (LOTTIIDAE)
- baharensis, Johnjagtia baharensis A.W. Janssen, 2012 † - (CUVIERINIDAE) (FOSSIL)
- bahia, Tribia bahia H.A. Pilsbry & A.A. Olsson, 1941 † - (CANCELLARIIDAE) (FOSSIL)
- bahia, Mycetopoda bahia H.F.A. von Ihering, 1910 - syn of: Mycetopoda siliquosa (J.B. von Spix, 1827) - (MYCETOPODIDAE)
- bahiaense, Elobiceras bahiaense C.J. Maury, 1925 † - (BRANCOCERATIDAE) (FOSSIL)
- bahiahondaense, Caecum bahiahondaense A.M. Strong & L.G. Hertlein, 1939 - (CAECIDAE)
- bahiense, Prunum bahiense (J.R. le B. Tomlin, 1917) - (MARGINELLIDAE)
- bahiensis, Volvarina bahiensis J.R. le B. Tomlin, 1917 - syn of: Prunum bahiense (J.R. le B. Tomlin, 1917) - (MARGINELLIDAE)
- bahiensis, Polinices bahiensis C.A. Récluz, 1850 - syn of: Polinices hepaticus (P.F. Röding, 1798) - (NATICIDAE)
- bahiensis, Natica bahiensis C.A. Récluz, 1850 - syn of: Polinices hepaticus (P.F. Röding, 1798) - (NATICIDAE)
- bahiensis, Nereina bahiensis (C.A. Récluz, 1850) - (NERITIDAE)
- Bahiensis, Subgenus Cyclodontina (Bahiensis) F.P. Jousseaume, 1877 (ODONTOSTOMIDAE)
- bahiensis, Cyclodontina bahiensis (S. Moricand, 1833) - (ODONTOSTOMIDAE)
- bahiensis, Planorbis bahiensis R.W. Dunker, 1886 - syn of: Biomphalaria glabrata bahiensis (R.W. Dunker, 1886) - (PLANORBIDAE)
- bahiensis, Biomphalaria glabrata bahiensis (R.W. Dunker, 1886) - (PLANORBIDAE)
- bahiensis, Turbonilla bahiensis (Z.J.A. De Castellanos, 1982) - (PYRAMIDELLIDAE)
- bahiensis, Runcina bahiensis J.L. Cervera, J.C. García-Gómez & F.J. García, 1991 - (RUNCINIDAE)
- bahiensis, Eupera bahiensis (J.B. von Spix, 1827) - (SPHAERIIDAE)
- bahiensis, Cyclas bahiensis E.C. Von Martens, 1873 - syn of: Eupera simoni (F.P. Jousseaume, 1889) - (SPHAERIIDAE)
- bahlikiana, Anodonta bahlikiana P.M. Pallary, 1933 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- bahreinense, Mesodesma bahreinense J.C. Melvill & R. Standen, 1907 - syn of: Atactodea subobtusa (F.P. Jousseaume, 1895) - (MESODESMATIDAE)
- baia, Hemicycla baia J.F. Mabille, 1883 - syn of: Hemicycla saulcyi carta (J.F. Mabille, 1882) - (HELICIDAE)
- baia, Forsia baia Saul, 1988 † - (PERISSITYIDAE) (FOSSIL)
- baiano, Conus baiano J. Coltro, 2004 - syn of: Poremskiconus abrolhosensis (E.J. Petuch, 1987) - (CONIDAE)
- Baiaplecta, Genus Baiaplecta F.F. Laidlaw, 1956 (ARIOPHANTIDAE)
- baibaraensis, Hemizaptyx baibaraensis C.K. Chang, A. Tada, H.M. Hwang & T. Okubo, 1998 - (CLAUSILIIDAE)
- Baicalancylus, Genus Baicalancylus Y.I. Starobogatov, 1967 (ACROLOXIDAE)
- Baicalcochlea, Subgenus Beneictia (Baicalcochlea) W.A. Lindholm, 1927 (LITHOGLYPHIDAE)
- baicalense, Pisidium baicalense W. Dybowski, 1902 - syn of: Pisidium dilatatum C.A. Westerlund, 1897 - (SPHAERIIDAE)
- baicalense complanatum, Sphaerium baicalense complanatum W.A. Lindholm, 1909 - syn of: Pisidium dilatatum C.A. Westerlund, 1897 - (SPHAERIIDAE)
- baicalensis, Acroloxus baicalensis Kozhov, 1936 - (ACROLOXIDAE)
- baicalensis, Benedictia baicalensis G. Gerstfeldt, 1859 - syn of: Benedictia baikalensis (G. Gerstfeldt, 1859) - (LITHOGLYPHIDAE)
- baicalensis, Onchidoris baicalensis W. Dybowski, 1900 - syn of: Onchidoris bilamellata (C. Linnaeus, 1767) - (ONCHIDORIDIDAE)
- baicalensis, Megalovalvata baicalensis (G. Gerstfeldt, 1859) - (VALVATIDAE)
- baicalensis, Paludina baicalensis G. Gerstfeldt, 1859 - syn of: Benedictia baikalensis (G. Gerstfeldt, 1859) - (VIVIPARIDAE)
- baicalensis demersa, Liratina baicalensis demersa W.A. Lindholm, 1909 - syn of: Megalovalvata demersa (W.A. Lindholm, 1909) - (VALVATIDAE)
- baicalensis piligera, Valvata baicalensis piligera W.A. Lindholm, 1909 - syn of: Megalovalvata piligera (W.A. Lindholm, 1909) - (VALVATIDAE)
- Baicalia, Genus Baicalia E.C. Von Martens, 1876 (AMNICOLIDAE)
- baicalicus, Anisus baicalicus (W. Dybowski, 1913) - (PLANORBIDAE)
- Baicaliella, Subgenus Baicalia (Baicaliella) W.A. Lindholm, 1909 (AMNICOLIDAE)
- baicaliiformis, Stankovicia baicaliiformis (W. Polinski, 1929) - (HYDROBIIDAE)
- Baicalinaia, Genus Baicalinaia Y.I. Starobogatov, 1970 (UNIONIDAE)
- Baicalipisidium, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- Baicaloplanorbis, Subgenus Choanomphalus (Baicaloplanorbis) J. Beckmann, 1975 (PLANORBIDAE)
- Baichtalia, syn of: Genus Kirkospira Rohr & Blodgett, 2001 † (PLETHOSPIRIDAE) (FOSSIL)
- baidashnikovi, Terrestribythinella baidashnikovi T.Y. Sitnikova, Y.I. Starobogatov & V.V. Anistratenko, 1992 - (AMNICOLIDAE)
- baidi, Kashmirites baidi Brühwiler & Bucher, 2012 † - (PRIONITIDAE) (FOSSIL)
- Baidiostraca, Genus Baidiostraca Guo, 1988 † (BAIDIOSTRACIDAE) (FOSSIL)
- BAIDIOSTRACIDAE Fang & Cope, 2008 † - Family (BIVALVIA-HETERODONTA [Subclass]-ARCHIHETERODONTA [Infraclass]-ACTINODONTIDA [Order]-ANODONTOPSOIDEA [Superfamily]) (FOSSIL)
- Baidites, Genus Baidites Brühwiler & Bucher, 2012 † (FLEMINGITIDAE) (FOSSIL)
- baikalensis, Benedictia baikalensis (G. Gerstfeldt, 1859) - (LITHOGLYPHIDAE)
- baikalensis, Valvata baikalensis G. Gerstfeldt, 1859 - syn of: Megalovalvata baicalensis (G. Gerstfeldt, 1859) - (VALVATIDAE)
- Baikalia, syn of: Genus Baicalia E.C. Von Martens, 1876 (AMNICOLIDAE)
- Baikaliella, syn of: Subgenus Baicalia (Baicaliella) W.A. Lindholm, 1909 (AMNICOLIDAE)
- Baikalipisidium, syn of: Genus Pisidium L. Pfeiffer, 1821 (SPHAERIIDAE)
- baikiei, Macrochisma baikiei (C.B. Adams, 1855) - (FISSURELLIDAE)
- baikii, Spatha baikii A. Adams, 1866 - syn of: Chambardia rubens (J.B.P.A. Lamarck, 1819) - (IRIDINIDAE)
- baikuense, Polonoceras baikuense Sheng, 1999 † - (TORNOCERATIDAE) (FOSSIL)
- bailei, Hippochrenes bailei G.P. Deshayes, 1865 † - syn of: Hippochrenes baylei G.P. Deshayes, 1865 † - (ROSTELLARIIDAE) (FOSSIL)
- bailense, Toxancyloceras bailense (J.J. Vermeulen, 1996 †) - (ANCYLOCERATIDAE) (FOSSIL)
- bailense, Ancyloceras bailense J.J. Vermeulen, 1996 † - syn of: Toxancyloceras bailense (J.J. Vermeulen, 1996 †) - (ANCYLOCERATIDAE) (FOSSIL)
- bailensii, Abida bailensii D. Dupuy, 1842 - syn of: Abida bigerrensis A. Moquin-Tandon, 1856 - (CHONDRINIDAE)
- baileti, Helix baileti E. Caziot & C.J. Maury, 1906 - syn of: Cingulifera cingulatum (S.E. Studer, 1820) - (HELICIDAE)
- baileyana, Partulina splendida baileyana J.T. Gulick, 1856 - (ACHATINELLIDAE)
- baileyana, Lepsiella baileyana J.E. Tenison-Woods, 1881 - syn of: Haustrum baileyanum (J.E. Tenison-Woods, 1881) - (MURICIDAE)
- baileyanum, Haustrum baileyanum (J.E. Tenison-Woods, 1881) - (MURICIDAE)
- baileyi, Rabdotus baileyi W.H. Dall, 1893 - (BULIMULIDAE)
- baileyi, Mitrella elegans baileyi P. Bartsch & H.A. Rehder, 1939 - (COLUMBELLIDAE)
- baileyi, Conasprella baileyi (D. Röckel & A.J. Da Motta, 1979) - (CONIDAE)
- baileyi, Splendrillia baileyi S.S. Berry, 1969 - syn of: Splendrillia lalage (W.H. Dall, 1919) - (DRILLIIDAE)
- baileyi, Sonorelix baileyi (P. Bartsch, 1904) - (HELMINTHOGLYPTIDAE)
- baileyi, Mitromorpha baileyi (J.H. McLean & L.H. Poorman, 1971) - (MITROMORPHIDAE)
- baileyi, Cymakra baileyi J.H. McLean & L.H. Poorman, 1971 - syn of: Mitromorpha baileyi (J.H. McLean & L.H. Poorman, 1971) - (MITROMORPHIDAE)
- baileyi, Anostoma baileyi G.A. Solem, 1956 - (ODONTOSTOMIDAE)
- baileyi, Groebericeras baileyi Imlay & Jones, 1969 † - (OLCOSTEPHANIDAE) (FOSSIL)
- baileyi, Oliva baileyi E.J. Petuch, 1979 - (OLIVIDAE)
- baileyi, Duplicaria baileyi T. Bratcher & W.O. Cernohorsky, 1982 - (TEREBRIDAE)
- baileyi eremita, Sonorelix baileyi eremita (H.A. Pilsbry, 1939) - (HELMINTHOGLYPTIDAE)
- baili, Cymbiola baili A. Prati Musetti & L. Raybaudi Massilia, 1997 - (VOLUTIDAE)
- bailorum, Fulgoraria bailorum N.N. Thach, 2014 - (VOLUTIDAE)
- Bailya, Genus Bailya M. Smith, 1944 (BUCCINIDAE)
- bailyanus, Solariorbis bailyanus H.A. Pilsbry & A.A. Olsson, 1952 - (TORNIDAE)
- bailyi, Latiala bailyi (R. Etheridge jr., 1904 †) - (APORRHAIDAE) (FOSSIL)
- bailyi, Acar bailyi P. Bartsch, 1931 - (ARCIDAE)
- bailyi, Baculites bailyi Woods, 1906 † - (BACULITIDAE) (FOSSIL)
- bailyi, Cyclocardia bailyi (J.Q. Burch, 1944) - (CARDITIDAE)
- bailyi, Nassarius bailyi (H.A. Pilsbry & H.N. Lowe, 1932) - (NASSARIIDAE)
- bailyi, Euglandina bailyi M. Smith, 1950 - (SPIRAXIDAE)
- bailyi, Cyclostremiscus bailyi (L.G. Hertlein & A.M. Strong, 1951) - (TORNIDAE)
- bailyi, Ptychopatula bailyi H.A. Pilsbry, 1934 - (VERTIGINIDAE)
- bainbridgei, Pleurodonte bainbridgei L. Pfeiffer, 1845 - (PLEURODONTIDAE)
- bainbridgei pretiosa, Helix bainbridgei pretiosa C.B. Adams, 1851 - syn of: Pleurodonte bainbridgei L. Pfeiffer, 1845 - (HELICIDAE)
- bainbridgensis, Aperiploma bainbridgensis (Clark, 1925 †) - (PERIPLOMATIDAE) (FOSSIL)
- bainbridgensis, Chionopsis bainbridgensis (W.H. Dall, 1916 †) - (VENERIDAE) (FOSSIL)
- baini, Olcostephanus baini (Sharpe 1856 †) - (OLCOSTEPHANIDAE) (FOSSIL)
- bainsi, Nehedia bainsi Johnston & Chatterton, 1983 † - (PSEUDOBIGALEAIDAE) (FOSSIL)
- Baiosoma, Genus Baiosoma Hoare & al., 2002 † (PSEUDOBIGALEAIDAE) (FOSSIL)
- bairdi, Placostylus fibratus bairdi (L.A. Reeve, 1848) - (BOTHRIEMBRYONTIDAE)
- bairdi, Satsuma bairdi A. Adams, 1870 - (CAMAENIDAE)
- bairdi, Theobaldius bairdi (L. Pfeiffer, 1852) - (CYCLOPHORIDAE)
- bairdi, Siphocypraea bairdi E.J. Petuch, 2004 † - (CYPRAEIDAE) (FOSSIL)
- bairdi, Pyramidella bairdi W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- bairdi, Gymnobela bairdi A.E. Verrill & S. Smith, 1884 - (RAPHITOMIDAE)
- bairdi eudeli, Satsuma bairdi eudeli A. Adams, 1870 - (CAMAENIDAE)
- bairdiana, Fadyenia bairdiana (E. Chitty, 1857) - (HELICINIDAE)
- bairdiana, Cycladamsia bairdiana (E. Chitty, 1857) - (NEOCYCLOTIDAE)
- bairdiana, Goniobasis bairdiana I. Lea, 1862 - (PLEUROCERIDAE)
- bairdiana, Truncatella bairdiana C.B. Adams, 1852 - (TRUNCATELLIDAE)
- bairdiana minor, Blandia bairdiana minor E. Chitty, 1857 - syn of: Fadyenia bairdiana (E. Chitty, 1857) - (HELICINIDAE)
- bairdianus, Unio bairdianus I. Lea, 1857 - syn of: Toxolasma texasiensis I. Lea, 1838 - (UNIONIDAE)
- bairdii, Architectonica bairdii G.B. II Sowerby, 1863 - (ARCHITECTONICIDAE)
- bairdii, Arene bairdii (W.H. Dall, 1889) - (ARENEIDAE)
- bairdii, Bathypolypus bairdii (A.E. Verrill, 1873) - (BATHYPOLYPODIDAE)
- bairdii, Bulimus bairdii L.A. Reeve, 1848 - syn of: Placostylus fibratus (T. Martyn, 1784) - (BULIMULIDAE)
- bairdii, Calliostoma bairdii A.E. Verrill & S. Smith in A.E. Verrill, 1880 - (CALLIOSTOMATIDAE)
- bairdii, Bathybembix bairdii (W.H. Dall, 1889) - (CALLIOTROPIDAE)
- bairdii, Opalia bairdii (E.A. Smith, 1871) - (EPITONIIDAE)
- bairdii, Spiniscala bairdii (E.A. Smith, 1871) - syn of: Opalia bairdii (E.A. Smith, 1871) - (EPITONIIDAE)
- bairdii, Liotia bairdii W.H. Dall, 1889 - syn of: Arene bairdii (W.H. Dall, 1889) - (LIOTIIDAE)
- bairdii, Margarites bairdii W.H. Dall, 1889 - syn of: Bathymophila bairdii (W.H. Dall, 1889) - (MARGARITIDAE)
- bairdii, Mitra bairdii W.H. Dall, 1889 - syn of: Volutomitra bairdii (W.H. Dall, 1889) - (MITRIDAE)
- bairdii, Bathymophila bairdii (W.H. Dall, 1889) - (SOLARIELLIDAE)
- bairdii, Eudolium bairdii (A.E. Verrill & S. Smith, 1881) - (TONNIDAE)
- bairdii, Umbonium bairdii W.H. Dall, 1889 - syn of: Bathymophila bairdii (W.H. Dall, 1889) - (TROCHIDAE)
- bairdii, Turris bairdii W.H. Dall, 1889 - syn of: Volutomitra bairdii (W.H. Dall, 1889) - (TURRIDAE)
- bairdii, Volutomitra bairdii (W.H. Dall, 1889) - (VOLUTOMITRIDAE)
- bairdii hendersoni, Calliostoma bairdii hendersoni W.H. Dall, 1927 - syn of: Calliostoma hendersoni W.H. Dall, 1927 - (CALLIOSTOMATIDAE)
- bairdii oregon, Calliostoma bairdii oregon W.J. Clench & H. Turner, 1960 - syn of: Calliostoma oregon W.J. Clench & H. Turner, 1960 - (CALLIOSTOMATIDAE)
- bairdii psyche, Calliostoma bairdii psyche W.H. Dall, 1927 - syn of: Calliostoma psyche W.H. Dall, 1927 - (CALLIOSTOMATIDAE)
- bairdii rosewateri, Calliostoma bairdii rosewateri W.J. Clench & H. Turner, 1960 - syn of: Calliostoma rosewateri W.J. Clench & H. Turner, 1960 - (CALLIOSTOMATIDAE)
- bairdii subumbilicatum, Calliostoma bairdii subumbilicatum W.H. Dall - (CALLIOSTOMATIDAE)
- bairense, Chondropoma bairense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- bairensis, Troschelvindex jiguanensis bairensis (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- bairnsdalensis, Rhophodon bairnsdalensis C.J. Gabriel, 1930 - (CHAROPIDAE)
- bairstowi, Eparietites bairstowi Howarth, 2002 † - (ARIETITIDAE) (FOSSIL)
- bairstowi, Clionella bairstowi G.B. III Sowerby, 1886 - syn of: Psittacodrillia bairstowi (G.B. III Sowerby, 1886) - (CLAVATULIDAE)
- bairstowi, Sciteconus bairstowi (G.B. III Sowerby, 1889) - (CONIDAE)
- bairstowi, Drillia bairstowi G.B. III Sowerby, 1886 - syn of: Psittacodrillia bairstowi (G.B. III Sowerby, 1886) - (DRILLIIDAE)
- bairstowi, Dolicholatirus bairstowi (G.B. III Sowerby, 1886) - (FASCIOLARIIDAE)
- bairstowi, Psittacodrillia bairstowi (G.B. III Sowerby, 1886) - (HORAICLAVIDAE)
- bairstowi, Marginella bairstowi G.B. III Sowerby, 1886 - (MARGINELLIDAE)
- bairstowi, Crassispira bairstowi G.B. III Sowerby, 1886 - syn of: Psittacodrillia bairstowi (G.B. III Sowerby, 1886) - (PSEUDOMELATOMIDAE)
- bairstowi, Pleurotoma bairstowi G.B. III Sowerby, 1886 - syn of: Psittacodrillia bairstowi (G.B. III Sowerby, 1886) - (TURRIDAE)
- Bairstowius, Genus Bairstowius Jeletzky, 1994 (HASTITIDAE) (FOSSIL)
- baisei, Subcancilla baisei G.T. Poppe, S.P. Tagaro & R. Salisbury, 2009 - (MITRIDAE)
- baisrei, Gibberula baisrei J. Espinosa & J.A. Ortea, 2007 - (CYSTISCIDAE)
- baitaquensis, Palaeocosmomya baitaquensis R.J. Neves & al., 2014 † - (SANGUINOLITIDAE) (FOSSIL)
- baiterum, Dallocardia baiterum W.P. Woodring, 1982 † - (CARDIIDAE) (FOSSIL)
- baitiquiriensis, Macroceramus claudens baitiquiriensis C. de la Torre & P. Bartsch, 2008 - (UROCOPTIDAE)
- baitoanensis, Lindapecten baitoanensis Waller, 2011 † - (PECTINIDAE) (FOSSIL)
- baixoensis, Caseolus baixoensis H.W. Waldén, 1983 - (HYGROMIIDAE)
- baixoguanduensis, Thaumastus baixoguanduensis A. Peñas, A.C. dos Santos Coelho & A. Salgado, 1996 - (MEGASPIRIDAE)
- Baizea, Genus Baizea J.R. Bourguignat, 1885 (PALUDOMIDAE)
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