- tala, Sepia tala D.N. Khromov, I.V. Nikitina & K.N. Nesis, 1991 - (SEPIIDAE)
- talabensis, Chloritis talabensis W. Kobelt, 1896 - syn of: Chloritis balatensis W. Kobelt, 1896 - (CAMAENIDAE)
- Talabrica, Genus Talabrica T. Iredale, 1924 (CRASSATELLIDAE)
- Talacastella, Genus Talacastella Sanchez , 1986 † (EOPTERIIDAE) (FOSSIL)
- talaena, Bathycrinicola talaena (P. Dautzenberg & H. Fischer, 1897) - (EULIMIDAE)
- talahabense, Cardium talahabense Martin, 1922 † - (CARDIIDAE) (FOSSIL)
- talahabense, Cerithium talahabense K. Martin, 1899 † - syn of: Cerithium munitum G.B. II Sowerby, 1855 - (CERITHIIDAE) (FOSSIL)
- talahabensis, Anomia talahabensis K. Martin, 1922 † - (ANOMIIDAE) (FOSSIL)
- talahabensis, Taxonia talahabensis (Martin, 1899 †) - (CERITHIIDAE) (FOSSIL)
- talahabensis, Taurasia talahabensis Martin, 1922 - (MURICIDAE)
- talahabensis, Nassarius talahabensis (K. Martin, 1921 †) - (NASSARIIDAE) (FOSSIL)
- talahabensis, Chlamys talahabensis Martin, 1922 † - (PECTINIDAE) (FOSSIL)
- talahabensis, Austromacoma talahabensis (Martin 1921) † - (TELLINIDAE) (FOSSIL)
- talahabensis, Turritella terebra talahabensis Martin, 1905 - (TURRITELLIDAE)
- Talahabia, Genus Talahabia Martin, 1921 † (CEPHALASPIDA (UNASSIGNED)) (FOSSIL)
- talama, Malletia talama W.H. Dall, 1916 - (MALLETIIDAE)
- talama, Odostomia talama W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- talamancensis, Gemma talamancensis (I. Richling, 2001) - (HELICINIDAE)
- talamonica, Ambigua saxetana talamonica (W. Kobelt, 1892) - (HELICIDAE)
- talanteia, Lucapinella talanteia A.A. Olsson & A. Harbison, 1953 † - (FISSURELLIDAE) (FOSSIL)
- Talantodiscus, Genus Talantodiscus Fischer, 1885 † (PLEUROTOMARIIDAE) (FOSSIL)
- talaor, Psammacoma talaor W.P. Woodring, 1982 † - (TELLINIDAE) (FOSSIL)
- talarensis, Atrina talarensis A.A. Olsson, 1928 † - (PINNIDAE) (FOSSIL)
- talarensis, Psammacoma talarensis A.A. Olsson, 1928 † - (TELLINIDAE) (FOSSIL)
- talarensis, Turbinella talarensis A.A. Olsson, 1930 † - (TURBINELLIDAE) (FOSSIL)
- talasicus, Microcornus talasicus Mambetov, 1981 † - (NELEGEROCORNIDAE) (FOSSIL)
- Talassia, Genus Talassia A. Warén & P. Bouchet, 1988 (VANIKORIDAE)
- talassica, Igorella talassica Missarzhevsky & Mambetov, 1981 † - (HELCIONELLIDAE) (FOSSIL)
- talassica, Leucozonella rufispira talassica A.A. Schileyko, 1972 - (HYGROMIIDAE)
- Talassoceras, Genus Talassoceras Balashov, 1960 † (THYLACOCERATIDAE) (FOSSIL)
- talatai, Pilula talatai K.C. Emberton, 1994 - (CHAROPIDAE)
- Talattoceras, Genus Talattoceras Myagkova, 1967 † (ONCOCERIDA (UNASSIGNED)) (FOSSIL)
- talaverai, Thorunna talaverai J.A. Ortea, J.J. Bacallado & Á. Valdés, 1992 - (CHROMODORIDIDAE)
- talaverai, Amphorella talaverai R. Hutterer & K. Groh, 2014 † - (FERUSSACIIDAE) (FOSSIL)
- talaverai, Manzonia talaverai R.G. Moolenbeek & M.J. Faber, 1987 - (RISSOIDAE)
- talavignesii, Ammonites talavignesii A.V.M.D. D'Orbigny, 1850 † - syn of: Nowakites talavignesii (A.V.M.D. D'Orbigny, 1850 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- talavignesii, Nowakites talavignesii (A.V.M.D. D'Orbigny, 1850 †) - (PACHYDISCIDAE) (FOSSIL)
- talboti, Apocrinoceras talboti Teichert & Glenister, 1954 † - (APOCRINOCERATIDAE) (FOSSIL)
- talboti, Cyclophorus talboti H.H. Godwin-Austen, 1889 - (CYCLOPHORIDAE)
- talboti, Eatoniella talboti W.F. Ponder & E.K. Yoo, 1978 - (EATONIELLIDAE)
- talboti, Mourlonia talboti (Dickins, 1963 †) - (GOSSELETINIDAE) (FOSSIL)
- talboti, Ptychomphalina talboti Dickins, 1963 † - syn of: Mourlonia talboti (Dickins, 1963 †) - (PTYCHOMPHALIDAE) (FOSSIL)
- talcosa, Cellana talcosa (A.A. Gould, 1846) - (NACELLIDAE)
- talcosus, Trochozonites talcosus (A.A. Gould, 1850) - (UROCYCLIDAE)
- talea, Eulimella talea A. Peñas, E. Rolán & F. Swinnen, 2014 - (PYRAMIDELLIDAE)
- Talena, syn of: Genus Talona J.E. Gray, 1842 (PHOLADIDAE)
- talenkanum, Koloceras talenkanum Riccardi & al., 1987 † - (OPPELIIDAE) (FOSSIL)
- talenti, Palaeoalvania talenti E.K. Yoo, 1994 † - (HETEROBRANCHIA (UNASSIGNED)) (FOSSIL)
- talenti, Talenticeras talenti Erben, 1965 † - (MIMOSPHINCTIDAE) (FOSSIL)
- Talenticeras, Genus Talenticeras Erben , 1965 † (MIMOSPHINCTIDAE) (FOSSIL)
- talentii, Platyla talentii M. Bodon & S. Cianfanelli, 2008 - (ACICULIDAE)
- talepora, Cernuella talepora J.R. Bourguignat in É.A.A. Locard, 1882 - syn of: Cernuella neglecta (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- Taleshites, Genus Taleshites Cecca & Seyed-Emami, 2012 † (NEOCOMITIDAE) (FOSSIL)
- talevi, Triloba thaumasia talevi I. Dedov & E. Neubert, 2002 - (CLAUSILIIDAE)
- talgarica, Columella talgarica A.A. Schileyko & T.S. Rymzhanov, 2010 - (VERTIGINIDAE)
- taliana, Plesiotrochus taliana H.S. Ladd, 1972 † - (PLESIOTROCHIDAE) (FOSSIL)
- taliartensis, Tritonia taliartensis J.A. Ortea & L. Moro, 2009 - (TRITONIIDAE)
- taliensis, Malletia taliensis (T.C. Lan & Y.C. Lee, 2001) - (MALLETIIDAE)
- talienwhanensis, Murex talienwhanensis J.C.H. Crosse, 1862 - syn of: Ocenebra inornata (C.A. Récluz, 1851) - (MURICIDAE)
- talienwhanensis, Crassostrea talienwhanensis J.C.H. Crosse, 1862 - syn of: Crassostrea gigas (C.P. Thunberg, 1793) - (OSTREIDAE)
- talievi, Galileja talievi Y.I. Starobogatov & E.A. Streletzkaja, 1967 - syn of: Pisidium subtruncatum A.W. Malm, 1855 - (SPHAERIIDAE)
- talis, Aviculopecten talis Lutkevitch & Lobanova, 1960 † - syn of: Vorkutopecten talis (Lutkevitch & Lobanova, 1960 †) - (AVICULOPECTINIDAE) (FOSSIL)
- talis, Conus talis P.O. Jung, 1965 † - (CONIDAE) (FOSSIL)
- talis, Vorkutopecten talis (Lutkevitch & Lobanova, 1960 †) - (DELTOPECTINIDAE) (FOSSIL)
- talis, Ercolania talis (Er. Marcus & Ev. Marcus, 1956) - (LIMAPONTIIDAE)
- talis, Stiliger talis Er. Marcus & Ev. Marcus, 1956 - syn of: Ercolania talis (Er. Marcus & Ev. Marcus, 1956) - (LIMAPONTIIDAE)
- talischana, Monacha talischana (E.C. Von Martens, 1880) - (HYGROMIIDAE)
- Talisiphon, syn of: Subgenus Siphonaria (Pachysiphonaria) B. Hubendick, 1945 (SIPHONARIIDAE)
- talismani, Arca talismani É.A.A. Locard, 1898 - syn of: Anadara gibbosa (L.A. Reeve, 1844) - (ARCIDAE)
- talismani, Calliotropis talismani (É.A.A. Locard, 1898) - (CALLIOTROPIDAE)
- talismani, Fuscapex talismani P. Bouchet & A. Warén, 1986 - (EULIMIDAE)
- talismani, Magnapinna talismani (H. Fischer & L.M.A.O.E. Joubin, 1907) - (MAGNAPINNIDAE)
- talismani, Mastigoteuthis talismani H. Fischer & L.M.A.O.E. Joubin, 1906 - syn of: Magnapinna talismani (H. Fischer & L.M.A.O.E. Joubin, 1907) - (MASTIGOTEUTHIDAE)
- talismani, Euspira talismani P. Bouchet & A. Warén, 1993 - (NATICIDAE)
- talismani, Philine talismani E.R. Sykes, 1905 - (PHILINIDAE)
- talismani, Solariella talismani É.A.A. Locard, 1898 - syn of: Calliotropis talismani (É.A.A. Locard, 1898) - (SOLARIELLIDAE)
- talismani, Pleurotoma talismani É.A.A. Locard, 1897 - syn of: Leucosyrinx verrillii (W.H. Dall, 1881) - (TURRIDAE)
- talismani attenuata, Pleurotoma talismani attenuata É.A.A. Locard, 1897 - syn of: Leucosyrinx verrillii (W.H. Dall, 1881) - (TURRIDAE)
- talismani curta, Pleurotoma talismani curta É.A.A. Locard, 1897 - syn of: Leucosyrinx verrillii (W.H. Dall, 1881) - (TURRIDAE)
- talismani elongata, Pleurotoma talismani elongata É.A.A. Locard, 1897 - syn of: Leucosyrinx verrillii (W.H. Dall, 1881) - (TURRIDAE)
- Talityphis, syn of: Subgenus Typhis (Typhina) F.P. Jousseaume, 1880 (MURICIDAE)
- Talityphis, syn of: Subgenus Typhis (Typhina) F.P. Jousseaume, 1880 (MURICIDAE)
- talkeetnaense, Metaderoceras talkeetnaense B.H. Thomson & Smith, 1992 † - (EODEROCERATIDAE) (FOSSIL)
- talkeetnanum, Sphaeroceras talkeetnanum Imlay, 1962 † - (SPHAEROCERATIDAE) (FOSSIL)
- talkeetnanus, Subarcthoplites talkeetnanus Imlay, 1960 † - (HOPLITIDAE) (FOSSIL)
- talkeetnanus, Cobbanites talkeetnanus Imlay, 1962 † - (PERISPHINCTIDAE) (FOSSIL)
- tallahalaensis, Bornia tallahalaensis D.T. Dockery, 1982 † - (KELLIIDAE) (FOSSIL)
- tallahalaensis, Nucula tallahalaensis D.T. Dockery, 1982 † - (NUCULIDAE) (FOSSIL)
- tallahalaensis, Solariella tallahalaensis D.T. Dockery, 1984 † - (SOLARIELLIDAE) (FOSSIL)
- tallahatchiensis, Alvania tallahatchiensis N.F. Sohl, 1960 - (RISSOIDAE)
- tallavignesi, Rostellaria tallavignesi Mayer-Eymar, 1888 † - (ROSTELLARIIDAE) (FOSSIL)
- tallicheti, Tellina tallicheti † - (TELLINIDAE) (FOSSIL)
- Tallinnoceras, Genus Tallinnoceras Balashov 1960 (EMMONSOCERATIDAE) (FOSSIL)
- tallorbioides, Cataegis tallorbioides Vilvens, 2016 - (CATAEGIDAE)
- Tallorbis, Genus Tallorbis G. Nevill & H. Nevill, 1869 (TROCHIDAE)
- talma, Turbonilla talma W.H. Dall & P. Bartsch, 1910 - (PYRAMIDELLIDAE)
- talmacensis, Campylaea talmacensis M. von Kimakowicz, 1890 - syn of: Faustina faustina (E.A. Rossmässler, 1835) - (HELICIDAE)
- talmadgei, Helminthoglypta talmadgei B. Roth, 1988 - (HELMINTHOGLYPTIDAE)
- talmiensis, Anadara talmiensis Kalishevich, 1976 † - syn of: Anadara inaequivalvis (J.G. Bruguière, 1789) - (ARCIDAE) (FOSSIL)
- Talochlamys, Genus Talochlamys T. Iredale, 1929 (PECTINIDAE)
- Talocodakia, syn of: Genus Epicodakia T. Iredale, 1930 (LUCINIDAE)
- taloensis, Amphidromus perversus taloensis B. Dharma, 2007 - (CAMAENIDAE)
- taloirensis, Bastelia taloirensis J.J. Vermeulen & al., 2012 † - (HAMULINIDAE) (FOSSIL)
- talon, Orthonychia talon Tolmachoff, 1930 † - (ORTHONYCHIIDAE) (FOSSIL)
- Talona, Genus Talona J.E. Gray, 1842 (PHOLADIDAE)
- talonata, Talonostrea talonata X.Z. Li & Z. Qi, 1994 - (OSTREIDAE)
- Talonella, syn of: Genus Pholadidea W.H. Turton, 1819 (PHOLADIDAE)
- Talonia, syn of: Genus Talona J.E. Gray, 1842 (PHOLADIDAE)
- Talonostrea, Genus Talonostrea X.Z. Li & Z. Qi, 1994 (OSTREIDAE)
- Talopena, syn of: Genus Monilea W.J. Swainson, 1840 (TROCHIDAE)
- Talophora, Genus Talophora J. Gründel, 1975 (TRIPHORIDAE)
- Talopia, syn of: Genus Monilea W.J. Swainson, 1840 (TROCHIDAE)
- Talostolida, Genus Talostolida T. Iredale, 1931 (CYPRAEIDAE)
- talovajensis, Macrocallista talovajensis Krishtofovich, 1969 † - syn of: Macrocallista olgensis Ilyina, 1963 † - (VENERIDAE) (FOSSIL)
- talpa, Talparia talpa (C. Linnaeus, 1758) - (CYPRAEIDAE)
- talpa, Odostomia talpa W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- talpa imperialis, Talparia talpa imperialis (F.A. Schilder & M. Schilder, 1938) - (CYPRAEIDAE)
- talpa lewallorum, Talparia talpa lewallorum F.Jr. Lorenz, 2015 - syn of: Talparia talpa (C. Linnaeus, 1758) - (CYPRAEIDAE)
- talpa lutani, Talparia talpa lutani C.B. Bridges, 2015 - (CYPRAEIDAE)
- talpa saturata, Talparia talpa saturata (P. Dautzenberg, 1903) - (CYPRAEIDAE)
- talpaensis, Ananias talpaensis B.S. Kues & Batten, 2001 † - (GOSSELETINIDAE) (FOSSIL)
- Talparia, Genus Talparia F.H. Troschel, 1863 (CYPRAEIDAE)
- talpina, Partulina talpina J.W. Mighels, 1856 - (ACHATINELLIDAE)
- talpoideus, Limifossor talpoideus H. Heath, 1904 - (LIMIFOSSORIDAE)
- talquinensis, Lioplax talquinensis V.A. Vail, 1979 - (VIVIPARIDAE)
- taltiensis, Murchisonia taltiensis Tschernischeff, 1893 † - (MURCHISONIIDAE) (FOSSIL)
- taludae, Paranadara taludae J. de A. Francisco, J.C.N. Barros & S.F.B. de Lima, 2012 - (ARCIDAE)
- taludana, Omalogyra taludana Z.J.A. De Castellanos, 1989 - (OMALOGYRIDAE)
- taludana, Leucosyrinx taludana Z.J.A. De Castellanos & N. Landoni, 1993 - (PSEUDOMELATOMIDAE)
- taluensis, Amphidromus taluensis Gra-tes, 2015 - (CAMAENIDAE)
- talusata, Pleuropoma talusata J. Stanisic, 2010 - (HELICINIDAE)
- talyndzhensis, Gracilites talyndzhensis Yatskov, 1992 † - (TEICHERTICERATIDAE) (FOSSIL)
- talyschana, Euxina talyschana I.M. Likharev, 1962 - (CLAUSILIIDAE)
- talyschana, Akramovskiella umbrosa talyschana (O. Böttger, 1882) - (ENIDAE)
- talyschana, Paratheba talyschana (E.C. Von Martens, 1880) - (HYGROMIIDAE)
- talyschana astarana, Euxina talyschana astarana H. Nordsieck, 1995 - (CLAUSILIIDAE)
- talyschanus, Buliminus talyschanus O. Böttger, 1882 - syn of: Akramovskiella umbrosa talyschana (O. Böttger, 1882) - (ENIDAE)
- talyschanus, Limax talyschanus O. Böttger, 1886 - syn of: Caspilimax keyserlingi (E.C. Von Martens, 1880) - (LIMACIDAE)
- talyschanus, Gigantomilax talyschanus H.R. Simroth, 1912 - syn of: Monochroma lenkoranus H.R. Simroth, 1912 - (LIMACIDAE)
- tamagonari, Ptychalaea dedecora tamagonari H.A. Pilsbry & Y. Hirase, 1904 - (VERTIGINIDAE)
- tamakiensis, Austrovenus tamakiensis (J. Marwick, 1948 †) - (VENERIDAE) (FOSSIL)
- tamakoshi, Glessula tamakoshi Budha & Backeljau, 2017 - (SUBULINIDAE)
- tamalakensis, Oistotrigonia tamalakensis (Saveliev, 1958 †) - (PTEROTRIGONIIDAE) (FOSSIL)
- tamanarensis, Atlasica tamanarensis P.M. Pallary, 1933 - (HELICIDAE)
- tamandarensis, Acteonella tamandarensis C.J. Maury, 1930 † - (ACTEONELLIDAE) (FOSSIL)
- tamandua, Cuspidaria tamandua R.S. Absalão & C.D. de Castro Oliveira, 2011 - (CUSPIDARIIDAE)
- Tamanella, syn of: Genus Lacuna W.H. Turton, 1827 (LITTORINIDAE)
- tamanensis, Caspiohydrobia tamanensis Iljina in Iljina & al., 1976 † - (HYDROBIIDAE) (FOSSIL)
- tamanensis, Modulus tamanensis C.J. Maury, 1925 † - (MODULIDAE) (FOSSIL)
- Tamanovalva, syn of: Genus Berthelinia J.C.H. Crosse, 1875 (JULIIDAE)
- tamara, Ledella tamara G.P. Gorbunov, 1946 - syn of: Yoldiella tamara (G.P. Gorbunov, 1946) - (NUCULANIDAE)
- tamara, Yoldiella tamara (G.P. Gorbunov, 1946) - (YOLDIIDAE)
- tamarackensis, Clidophorus tamarackensis Foerste, 1924 † - (NUCULANIDAE) (FOSSIL)
- tamarae, Anticlimax tamarae F. Rubio & E. Rolán, 2014 - (TORNIDAE)
- Tamaragonia, Genus Tamaragonia M.R. Cooper, 2015 † (IOTRIGONIIDAE) (FOSSIL)
- tamarana, Anadara tamarana F. Hodson & al., 1927 † - (ARCIDAE) (FOSSIL)
- tamaranensis, Parmacella tamaranensis R. Hutterer, 1990 - (PARMACELLIDAE)
- tamaranensis, Insulivitrina tamaranensis (M. Valido, 1990) - (VITRINIDAE)
- tamarenis, Succinea tamarenis W.F. Petterd, 1879 - (SUCCINEIDAE)
- tamarensis, Pernagera tamarensis (W.F. Petterd, 1879) - (CHAROPIDAE)
- Tamarindiformis, syn of: Genus Lithophaga P.F. Röding, 1798 (MYTILIDAE)
- tamarinum, Schizogonium tamarinum K. Bandel, 1991 † - (SCHIZOGONIIDAE) (FOSSIL)
- tamariskae, Cymbiola nobilis tamariskae Sutanto & S. Patamakanthin, 2004 - (VOLUTIDAE)
- Tamarites, Genus Tamarites Bogoslovsky , 1965 † (TAMARITIDAE) (FOSSIL)
- TAMARITIDAE Korn, 2001 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-AGONIATITIDA [Order]-AGONIATITOIDEA [Superfamily]) (FOSSIL)
- tamasopensis, Oxymelania pleurostriatus tamasopensis H.A. Pilsbry & A. Hinkley, 1910 - (PACHYCHILIDAE)
- tamasorum, Alopia vicina tamasorum M. Szekeres, 2007 - (CLAUSILIIDAE)
- tamatavica, Nucula tamatavica N.H. Odhner, 1943 - (NUCULIDAE)
- tamaulipana, Exogyra tamaulipana Imlay, 1937 † - (GRYPHAEIDAE) (FOSSIL)
- tamaulipasensis, Helix tamaulipasensis H.C. Lea, 1857 - syn of: Linisia tamaulipasensis (H.C. Lea, 1857) - (HELICIDAE)
- tamaulipasensis, Linisia tamaulipasensis (H.C. Lea, 1857) - (POLYGYRIDAE)
- tamaulipensis, Proameria potosiana tamaulipensis (H.A. Pilsbry, 1908) - (SPIRAXIDAE)
- tamaulipensis, Lamellaxis tamaulipensis (H.A. Pilsbry, 1903) - (SUBULINIDAE)
- tamaulipensis, Bostrichocentrum tamaulipensis P. Bartsch, 1906 - (UROCOPTIDAE)
- Tamayoa, Genus Tamayoa F.C. Baker, 1925 (SCOLODONTIDAE)
- Tamayops, Subgenus Tamayoa (Tamayops) F.C. Baker, 1928 (SCOLODONTIDAE)
- tambacana, Anadara tambacana K. Martin, 1883 † - (ARCIDAE) (FOSSIL)
- tambacanus, Nassarius tambacanus (K. Martin, 1884 †) - (NASSARIIDAE) (FOSSIL)
- tambaccana, Nassaria tambaccana Martin, 1884 † - (NASSARIIDAE) (FOSSIL)
- Tambanella, Genus Tambanella Nakazawa & Newell, 1968 † (MALLEIDAE) (FOSSIL)
- Tambegiroceras, Genus Tambegiroceras Myagkova, 1967 † (ORTHOCERIDA (UNASSIGNED)) (FOSSIL)
- Tambja, Genus Tambja R.F. Burn, 1962 (POLYCERIDAE)
- tamboensis, Bostryx turritus tamboensis A. Zilch, 1953 - (BULIMULIDAE)
- tambosolense, Paracerithium tambosolense F. Haas, 1953 † - (PROCERITHIIDAE) (FOSSIL)
- tambosolensis, Anoptychia tambosolensis E.F.R.K. Koken 1892 † - (ANOPTYCHIIDAE) (FOSSIL)
- tambosolensis, Trachynerita tambosolensis F. Haas, 1953 † - (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- tambosolensis, Coelostylina tambosolensis F. Haas, 1953 † - (COELOSTYLINIDAE) (FOSSIL)
- tambosolensis, Euconactaeon tambosolensis F. Haas, 1953 † - (CYLINDROBULLINIDAE) (FOSSIL)
- tambunanensis, Philalanka tambunanensis J.J. Vermeulen, T.S. Liew & M. Schilthuizen, 2015 - (ENDODONTIDAE)
- tamdensis, Stenothecoides tamdensis Koneva, 1979 † - (CAMBRIDIIDAE) (FOSSIL)
- tamegana, Anodonta tamegana J. Da Silva e Castro, 1883 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- tameganus, Unio tameganus É.A.A. Locard, 1899 - syn of: Unio abrantesianus É.A.A. Locard, 1899 - (UNIONIDAE)
- Tamesnella, Genus Tamesnella D. Mongin, 1963 † (TAMESNELLIDAE) (FOSSIL)
- TAMESNELLIDAE Van Damme & Bogan, 2015 † - Family (BIVALVIA-PALAEOHETERODONTA [Subclass]-UNIONIDA [Order]-TAMESNELLOIDEA [Superfamily]) (FOSSIL)
- Tamesnelloides, Genus Tamesnelloides Van Damme & Bogan, 2015 † (TAMESNELLIDAE) (FOSSIL)
- tamiamensis, Periglypta tamiamensis A.A. Olsson & R.E. Petit, 1964 † - (VENERIDAE) (FOSSIL)
- tamiamiensis, Carditamera tamiamiensis (W.C. Mansfield, 1930 †) - (CARDITIDAE) (FOSSIL)
- tamiamiensis, Ostrea tamiamiensis J. Brown & H.A. Pilsbry, 1932 † - syn of: Hyotissa haitensis (Sowerby, 1850 †) - (OSTREIDAE) (FOSSIL)
- tamiamiensis, Pecten tamiamiensis W.C. Mansfield, 1939 † - (PECTINIDAE) (FOSSIL)
- Tamianomia, Subgenus Placunanomia (Tamianomia) Olsson, 1967 † (ANOMIIDAE) (FOSSIL)
- tamikoae, Calloarca tamikoae (K. Sakurai, 1969) - (ARCIDAE)
- tamikoae, Virgiconus tamikoae T. Shikama, 1973 - syn of: Afonsoconus kinoshitai (J.T. Kuroda, 1956) - (CONIDAE)
- tamikoae, Arctomelon tamikoae (S. Kosuge, 1970) - (VOLUTIDAE)
- tamikoana, Bolma tamikoana (T. Shikama, 1973) - (TURBINIDAE)
- tamikoana flava, Bolma tamikoana flava A.G. Beu & W.F. Ponder, 1979 - syn of: Bolma flava A.G. Beu & W.F. Ponder, 1979 - (TURBINIDAE)
- tamikoana shikamai, Bolma tamikoana shikamai T. Habe, 1978 - syn of: Bolma tamikoana (T. Shikama, 1973) - (TURBINIDAE)
- Tamilicardia, Subgenus Protocardia (Tamilicardia) Chiplonkar & Tapaswi, 1976 (CARDIIDAE)
- taminabuanensis, Hemihoplites taminabuanensis Skwarko & Thieuloy, 1989 † - (HEMIHOPLITIDAE) (FOSSIL)
- tamiu, Berthella tamiu Ev. Marcus, 1984 - (PLEUROBRANCHIDAE)
- tamkhaobote, Aulacospira tamkhaobote P. Dumrongrojwattana, 2006 - (HYPSELOSTOMATIDAE)
- tamlod, Angustopila tamlod (S. Panha & Burch, 1999) - (HYPSELOSTOMATIDAE)
- Tammouzia, syn of: Genus Helix C. Linnaeus, 1758 (HELICIDAE)
- Tamnozaga, syn of: Genus Temnozaga J.H. McLean, 1989 (SUTILIZONIDAE)
- tamora, Therasiella tamora (F.W. Hutton, 1883) - (CHAROPIDAE)
- tampae, Bulimulus tampae W.H. Dall, 1915 † - syn of: Tocobaga floridanus (T.A. Conrad, 1846 †) - (BULIMULIDAE) (FOSSIL)
- tampae, Turritella tampae A. Heilprin, 1887 † - (TURRITELLIDAE) (FOSSIL)
- Tampaella, Genus Tampaella M. Huber, Langleit & Kreipl, 2015 (TELLINIDAE)
- tampaense, Calliostoma tampaense (T.A. Conrad, 1846) - (CALLIOSTOMATIDAE)
- tampaensis, Calliostoma tampaensis T.A. Conrad, 1846 - syn of: Calliostoma tampaense (T.A. Conrad, 1846) - (CALLIOSTOMATIDAE)
- tampaensis, Trigonostoma tampaensis R.E. Petit, 1967 † - (CANCELLARIIDAE) (FOSSIL)
- tampaensis, Lima tampaensis W.H. Dall, 1898 † - (LIMIDAE) (FOSSIL)
- tampaensis, Bermudaclis tampaensis P. Bartsch, 1947 - syn of: Murchisonella spectrum (O.A.L. Mörch, 1875) - (MURCHISONELLIDAE)
- tampaensis, Urosalpinx tampaensis (T.A. Conrad, 1846) - (MURICIDAE)
- tampaensis, Ecphora tampaensis (W.H. Dall, 1890 †) - (MURICIDAE) (FOSSIL)
- tampaensis, Murex tampaensis T.A. Conrad, 1846 - syn of: Urosalpinx tampaensis (T.A. Conrad, 1846) - (MURICIDAE)
- tampaensis, Rapana tampaensis W.H. Dall, 1890 † - syn of: Ecphora tampaensis (W.H. Dall, 1890 †) - (MURICIDAE) (FOSSIL)
- tampaensis, Pyrgospira tampaensis (P. Bartsch & H.A. Rehder, 1939) - (PSEUDOMELATOMIDAE)
- tampaensis, Eulimella tampaensis P. Bartsch, 1955 † - (PYRAMIDELLIDAE) (FOSSIL)
- tampaensis, Tampaella tampaensis (T.A. Conrad, 1866) - (TELLINIDAE)
- tampaensis, Trochus tampaensis T.A. Conrad, 1846 - syn of: Calliostoma tampaense (T.A. Conrad, 1846) - (TROCHIDAE)
- tampaensis bartschi, Pyrgospira tampaensis bartschi (L.M. Perry, 1940) - (PSEUDOMELATOMIDAE)
- tamphathai, Paraboysidia tamphathai S. Panha & J.B. Burch, 2000 - (HYPSELOSTOMATIDAE)
- tampicoensis, Coilostele tampicoensis (H.A. Pilsbry, 1907) - (FERUSSACIIDAE)
- tampicoensis, Littoridinops tampicoensis (H.A. Pilsbry & A. Hinkley, 1907) - (HYDROBIIDAE)
- tampicoensis, Paludestrina tampicoensis H.A. Pilsbry & A. Hinkley, 1907 - syn of: Littoridinops tampicoensis (H.A. Pilsbry & A. Hinkley, 1907) - (HYDROBIIDAE)
- tampicoensis, Spiraxis tampicoensis H.A. Pilsbry, 1907 - syn of: Coilostele tampicoensis (H.A. Pilsbry, 1907) - (SPIRAXIDAE)
- tampicoensis, Cyrtonaias tampicoensis (I. Lea, 1838) - (UNIONIDAE)
- tampicoensis kusteriana, Cyrtonaias tampicoensis kusteriana L.S. Frierson, 1927 - syn of: Cyrtonaias tampicoensis (I. Lea, 1838) - (UNIONIDAE)
- Tampsia, Genus Tampsia Stephenson, 1922 † (RADIOLITIDAE) (FOSSIL)
- tamra, Torquesia tamra Abbass, 1962 † - (TURRITELLIDAE) (FOSSIL)
- tamsi, Euchelus tamsi R.W. Dunker - syn of: Herpetopoma atratum (J.F. Gmelin, 1791) - (CHILODONTIDAE)
- tamsi, Euchelus tamsi Auct. non R.W. Dunker - syn of: Herpetopoma atratum (J.F. Gmelin, 1791) - (CHILODONTIDAE)
- tamsi, Melanoides tamsi R.W. Dunker, 1853 - syn of: Melanoides tuberculata (O.F. Müller, 1774) - (THIARIDAE)
- tamsiana, Ampullaria tamsiana R.A. Philippi, 1852 - syn of: Pomacea glauca (C. Linnaeus, 1758) - (AMPULLARIIDAE)
- tamsiana, Arene tamsiana (R.A. Philippi, 1852) - (ARENEIDAE)
- tamsiana, Labyrinthus tamsiana (R.W. Dunker, 1847) - (CAMAENIDAE)
- tamsiana, Helicina tamsiana (L. Pfeiffer, 1850) - (HELICINIDAE)
- Tamsiana, syn of: Subgenus Helicina (Oxyrhombus) P. Fischer & J.C.H. Crosse, 1893 (HELICINIDAE)
- tamsiana, Tamsiella tamsiana (R.W. Dunker, 1858) - (MYCETOPODIDAE)
- tamsiana, Bullia tamsiana R.W. Dunker, 1853 - (NASSARIIDAE)
- tamsiana, Succinea tamsiana L. Pfeiffer - (SUCCINEIDAE)
- tamsiana, Melanoides tamsiana P.H. Reibisch, 1865 - syn of: Melanoides tuberculata (O.F. Müller, 1774) - (THIARIDAE)
- tamsiana appuni, Helicina tamsiana appuni (E.C. Von Martens, 1873) - (HELICINIDAE)
- tamsianus, Conus tamsianus R.W. Dunker, 1853 - syn of: Varioconus aemulus (L.A. Reeve, 1844) - (CONIDAE)
- Tamsiella, Genus Tamsiella F. Haas, 1931 (MYCETOPODIDAE)
- tamsii, Trochus tamsii R.W. Dunker in R.A. Philippi, 1845 - syn of: Phorcus atratus (W. Wood, 1828) - (TROCHIDAE)
- tamsinae, Epitonium tamsinae R.N. Kilburn, 1985 - (EPITONIIDAE)
- tamtouriana, Dasypupa tamtouriana B.M. Pokryszko, K. Auffenberg & al., 2009 - (HYPSELOSTOMATIDAE)
- Tamu, Genus Tamu D.L. Gustafson, H. Turner, R.A. Lutz & R.C. Vrijenhoek, 1998 (MYTILIDAE)
- tamulicum, Placenticeras tamulicum (Blanford, 1862 †) - (PLACENTICERATIDAE) (FOSSIL)
- tamulicus, Teichertia tamulicus (Kossmat, 1897 †) - (HERCOGLOSSIDAE) (FOSSIL)
- tamurae, Chlamys tamurae O. Masuda & Sawada, 1961 - (PECTINIDAE)
- Tamuragonia, Genus Tamuragonia M.R. Cooper, 2015 † (PTEROTRIGONIIDAE) (FOSSIL)
- tamurai, Helicotoma tamurai Kobayashi, 1930 † - syn of: Scalites tamurai O. Kobayashi, 1930 † - (HELICOTOMIDAE) (FOSSIL)
- tamurai, Solamen tamurai T. Habe, 1955 - syn of: Solamen columbiana (W.H. Dall, 1897) - (MYTILIDAE)
- tamurai, Crenella tamurai T. Habe, 1955 - syn of: Solamen columbiana (W.H. Dall, 1897) - (MYTILIDAE)
- tamurai, Chlamys tamurai Tashiro, 1976 † - (PECTINIDAE) (FOSSIL)
- tamurai, Scalites tamurai O. Kobayashi, 1930 † - (RAPHISTOMATIDAE) (FOSSIL)
- Tanabeceras, Genus Tanabeceras Shigeta & al., 2012 † (GAUDRYCERATIDAE) (FOSSIL)
- tanabei, Hokkaidoconcha tanabei A. Kaim, B.W. Jenkins & A. Warén, 2008 † - (PROVANNIDAE) (FOSSIL)
- tanabei, Thyasira tanabei S. Kiel, K. Amano & R.G. Jenkins, 2008 † - (THYASIRIDAE) (FOSSIL)
- tanabensis, Cuneocorbula tanabensis (M. Yokoyama, 1923 †) - (CORBULIDAE) (FOSSIL)
- tanabensis, Leiomya tanabensis T. Habe, 1960 - syn of: Leiomya adunca (A.A. Gould, 1861) - (CUSPIDARIIDAE)
- tanabensis, Mangelia tanabensis J.C. Melvill, 1923 - (MANGELIIDAE)
- tanabensis, Mysella tanabensis T. Habe, 1960 - (MONTACUTIDAE)
- tanabensis, Stenothyra edogawaensis tanabensis J.T. Kuroda, 1962 - (STENOTHYRIDAE)
- tanae, Lodderena tanae R.G. Moolenbeek, 1996 - (SKENEIDAE)
- tanakai, Baculites tanakai E. Matsumoto & Obata, 1963 † - (BACULITIDAE) (FOSSIL)
- tanakai, Lyonsia tanakai T. Habe, 1981 - syn of: Lyonsia praetenuis R.W. Dunker, 1882 - (LYONSIIDAE)
- tanakai, Montacutona tanakai T. Habe, 1959 - (MONTACUTIDAE)
- tanakai, Pliocardia tanakai Miyajima, Nobuhara & Koike, 2017 † - (VESICOMYIDAE) (FOSSIL)
- Tanalia, Subgenus Paludomus (Tanalia) J.E. Gray, 1847 (PALUDOMIDAE)
- Tanaliopsis, Genus Tanaliopsis Cossmann, 1915 † (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- tanamense, Chondropoma solidulum tanamense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- tanamensis, Drepanocheilus tanamensis Beisel, 1991 † - (APORRHAIDAE) (FOSSIL)
- tanamensis, Cerion tanamensis M.I. Sánchez Roig, 1951 - (CERIONIDAE)
- tanamensis, Polymita muscarum tanamensis (C. de la Torre, 1950) - (HELMINTHOGLYPTIDAE)
- tanamensis, Diplopoma architectonica tanamensis (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- tanamensis, Chondropoma chordatum tanamensis (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- tanamensis, Brachypodella tanamensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- tananensis, Sphincterochila maroccana tananensis P.M. Pallary, 1917 - (SPHINCTEROCHILIDAE)
- tanaoa, Paziella tanaoa (R. Houart & J. Tröndlé, 2008) - (MURICIDAE)
- tanaoa, Flexopteron tanaoa (R. Houart & J. Tröndlé, 2008) - syn of: Paziella tanaoa (R. Houart & J. Tröndlé, 2008) - (MURICIDAE)
- Tanaodon, Genus Tanaodon Kirk, 1927 † (LYRODESMATIDAE) (FOSSIL)
- tanassevitschi, Leochlamys tanassevitschi Khomenko, 1934 † - (PECTINIDAE) (FOSSIL)
- tanata, Taranis tanata R.M.A. Figueira & R.S. Absalão, 2010 - (RAPHITOMIDAE)
- Tanchiashanites, Genus Tanchiashanites Zhao, 1954 † (TAINOCERATIDAE) (FOSSIL)
- Tanchintongia, syn of: Genus Shikamaia Ozaki, 1968 † (ALATOCONCHIDAE) (FOSSIL)
- tancredi, Globularia tancredi (Morris & Lycett) † - (AMPULLINIDAE) (FOSSIL)
- Tancredia, Genus Tancredia Lycett, 1850 † (TANCREDIIDAE) (FOSSIL)
- TANCREDIIDAE Meek, 1864 † - Family (BIVALVIA-HETERODONTA [Subclass]-EUHETERODONTA [Infraclass]-IMPARIDENTIA [Superorder]-VENERIDA [Order]-TELLINOIDEA [Superfamily]) (FOSSIL)
- Tancrediopsis, Genus Tancrediopsis Beushausen, 1895 † (CTENODONTIDAE) (FOSSIL)
- Tancretella, Genus Tancretella Ludbrook, 1966 † (CARDIIDA (UNASSIGNED)) (FOSSIL)
- tandianensis, Rhadella tandianensis (W. Theobald, 1881) - (ARIOPHANTIDAE)
- tandjanensis, Subzebrinus tandjanensis (W. Kobelt, 1902) - (ENIDAE)
- Tandonia, Genus Tandonia R.P. Lesson & C. Pollonera, 1882 (MILACIDAE)
- tandoniana, Fusillus tandoniana R.J. Shuttleworth, 1852 - syn of: Amphorella oryza R.T. Lowe, 1852 - (FERUSSACIIDAE)
- Tanea, Genus Tanea J. Marwick, 1931 (NATICIDAE)
- taneae, Nesodiscus taneae (A. Garrett, 1872) - (ENDODONTIDAE)
- tanegashimae, Microcystina tanegashimae H.A. Pilsbry, 1901 - syn of: Yamatochlamys tanegashimae (H.A. Pilsbry, 1901) - (ARIOPHANTIDAE)
- tanegashimae, Paludinellassiminea tanegashimae (H.A. Pilsbry, 1924) - (ASSIMINEIDAE)
- tanegashimae, Paludinassiminea tanegashimae H.A. Pilsbry, 1924 - syn of: Paludinellassiminea tanegashimae (H.A. Pilsbry, 1924) - (ASSIMINEIDAE)
- tanegashimae, Ganesella tanegashimae H.A. Pilsbry, 1901 - (CAMAENIDAE)
- tanegashimae, Tyrannophaedusa tanegashimae (H.A. Pilsbry, 1901) - (CLAUSILIIDAE)
- tanegashimae, Chamalycaeus tanegashimae H.A. Pilsbry, 1902 - syn of: Chamalycaeus satsumanus tanegashimae H.A. Pilsbry, 1902 - (CYCLOPHORIDAE)
- tanegashimae, Chamalycaeus satsumanus tanegashimae H.A. Pilsbry, 1902 - (CYCLOPHORIDAE)
- tanegashimae, Diplommatina tanegashimae H.A. Pilsbry, 1901 - (DIPLOMMATINIDAE)
- tanegashimae, Yamatochlamys tanegashimae (H.A. Pilsbry, 1901) - (HELICARIONIDAE)
- tanegashimae, Pseudopomatias rufa tanegashimae H.A. Pilsbry, 1931 - (PUPINIDAE)
- tanegashimae dulcis, Ganesella tanegashimae dulcis H.A. Pilsbry, 1901 - (CAMAENIDAE)
- tanegashimae kyushuensis, Diplommatina tanegashimae kyushuensis H.A. Pilsbry & Y. Hirase, 1904 - (DIPLOMMATINIDAE)
- tanegashimae takashimai, Diplommatina tanegashimae takashimai J.T. Kuroda - (DIPLOMMATINIDAE)
- tanegashimanus, Cyclotus campanulatus tanegashimanus H.A. Pilsbry & Y. Hirase, 1908 - (CYCLOPHORIDAE)
- tanegasimana, Odostomia tanegasimana S. Nomura, 1939 - (PYRAMIDELLIDAE)
- tanervillae, Arca tanervillae L.A. Reeve - (ARCIDAE)
- tanevi, Pontobelgrandiella tanevi D.G. Georgiev, 2013 - (HYDROBIIDAE)
- taneyense, Shumardoceras taneyense Ulrich & al., 1942 † - (ESTONIOCERATIDAE) (FOSSIL)
- taneyensis, Lophonema taneyensis (Cullison, 1944 †) - (HELICOTOMIDAE) (FOSSIL)
- taneyensis, Polhemia taneyensis Cullison, 1944 † - syn of: Lophonema taneyensis (Cullison, 1944 †) - (HELICOTOMIDAE) (FOSSIL)
- Tanga, Subgenus Strobilus (Tanga) C.M. Cooke & Y. Kondo, 1960 (ACHATINELLIDAE)
- tanganensis, Belemnites tanganensis Futterer, 1894 † - (BELEMNITELLIDAE) (FOSSIL)
- tanganensis, Belemnopsis tanganensis Futt, 1894 † - (BELEMNOPSEIDAE) (FOSSIL)
- tanganikana, Corbicula tanganikana J.R. Bourguignat, 1885 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- tanganikana, Aetheria tanganikana J.R. Bourguignat, 1889 - syn of: Etheria elliptica J.B.P.A. Lamarck, 1807 - (ETHERIIDAE)
- tanganikana, Burtonia tanganikana J.R. Bourguignat, 1883 - syn of: Pseudospatha tanganyicensis (E.A. Smith, 1880) - (UNIONIDAE)
- Tanganikia, syn of: Genus Tanganyicia J.C.H. Crosse, 1881 (PALUDOMIDAE)
- tanganum, Epitonium tanganum K.H.J. Thiele, 1925 - syn of: Epitonium fractum W.H. Dall, 1927 - (EPITONIIDAE)
- tanganyicense, Bellamya tanganyicense (E.A. Smith, 1880) - (VIVIPARIDAE)
- tanganyicensis, Gabbiella humerosa tanganyicensis G. Mandahl-Barth, 1968 - (BITHYNIIDAE)
- tanganyicensis, Caryocorbula tanganyicensis (Cox 1965) † - (CORBULIDAE) (FOSSIL)
- tanganyicensis, Palaeomutela tanganyicensis Cox † - (PALAEOMUTELIDAE) (FOSSIL)
- tanganyicensis, Martelia tanganyicensis P. Dautzenberg, 1908 - (PALUDOMIDAE)
- tanganyicensis, Reymondia tanganyicensis E.A. Smith, 1889 - (PALUDOMIDAE)
- tanganyicensis, Ferrissia tanganyicensis E.A. Smith, 1906 - (PLANORBIDAE)
- tanganyicensis, Biomphalaria sudanica tanganyicensis (E.A. Smith, 1881) - (PLANORBIDAE)
- tanganyicensis, Pseudospatha tanganyicensis (E.A. Smith, 1880) - (UNIONIDAE)
- tanganyicensis bequaerti, Pseudospatha tanganyicensis bequaerti E.H.J. Leloup, 1950 - syn of: Pseudospatha tanganyicensis (E.A. Smith, 1880) - (UNIONIDAE)
- tanganyicensis typica, Pseudospatha tanganyicensis typica E.H.J. Leloup, 1950 - syn of: Pseudospatha tanganyicensis (E.A. Smith, 1880) - (UNIONIDAE)
- Tanganyicia, Genus Tanganyicia J.C.H. Crosse, 1881 (PALUDOMIDAE)
- Tanganyikia, syn of: Genus Tanganyicia J.C.H. Crosse, 1881 (PALUDOMIDAE)
- tangara, Juliacorbula tangara (A.A. Olsson, 1928 †) - (CORBULIDAE) (FOSSIL)
- Tangarilda, Genus Tangarilda Gründel, 2010 † (MATHILDIDAE) (FOSSIL)
- tangaroa, Anatoma tangaroa D.L. Geiger & B.A. Marshall, 2012 - (ANATOMIDAE)
- tangaroa, Falsimargarita tangaroa B.A. Marshall, 2016 - (CALLIOSTOMATIDAE)
- tangaroa, Austroneaera tangaroa (B.A. Marshall, 2002) - (CUSPIDARIIDAE)
- tangaroa, Rhinoclama tangaroa B.A. Marshall, 2002 - syn of: Austroneaera tangaroa (B.A. Marshall, 2002) - (CUSPIDARIIDAE)
- tangaroa, Muusoctopus tangaroa (B.J. O'Shea, 1999) - (ENTEROCTOPODIDAE)
- tangaroa, Pagodula tangaroa B.A. Marshall & R. Houart, 2011 - (MURICIDAE)
- tangaroa, Hirtomurex tangaroa B.A. Marshall & M. Oliverio, 2009 - (MURICIDAE)
- tangaroa, Monstrotyphis tangaroa R. Houart & B.A. Marshall, 2012 - (MURICIDAE)
- tangaroa, Bathymodiolus tangaroa R. von Cosel & B.A. Marshall, 2003 - (MYTILIDAE)
- tangaroa, Micropilina tangaroa B.A. Marshall, 1990 - (NEOPILINIDAE)
- tangaroa, Zetela tangaroa B.A. Marshall, 1999 - (SOLARIELLIDAE)
- tangaroa tuerkayi, Bathymodiolus tangaroa tuerkayi R. von Cosel & A.W. Janssen, 2008 - (MYTILIDAE)
- tangaroai, Nassarius tangaroai H.H. Kool, 2006 - (NASSARIIDAE)
- tangaroanus, Bayerotrochus tangaroanus (P. Bouchet & B. Métivier, 1982) - (PLEUROTOMARIIDAE)
- tangbunia, Fluviopupa tangbunia S. Zielske & M. Haase, 2014 - (HYDROBIIDAE)
- Tangchiashanites, Genus Tangchiashanites † (NAUTILIDA (UNASSIGNED)) (FOSSIL)
- tangdingense, Anetoceras tangdingense Ruan, 1981 † - (MIMOSPHINCTIDAE) (FOSSIL)
- tangdingensis, Hemipsila tangdingensis Mu & Mu, 1974 † - (UNDASTRIATOSTYLIOLINIDAE) (FOSSIL)
- tangens, Microcystis tangens E. Fischer-Piette, F. Blanc & F. Salvat, 1975 - (EUCONULIDAE)
- tangens, Lytospira tangens J. Perner, 1903 † - (OPHILETIDAE) (FOSSIL)
- tangentialis, Teutonophon tangentialis (B. Phillips, 1836 †) - (BELLEROPHONTIDAE) (FOSSIL)
- tangi, Pseudobythinella tangi T.C. Cheng, W.L. Wu, B.Q. Li & G.Y. Lin, 2007 - (AMNICOLIDAE)
- tangi, Oncomelania hupensis tangi (P. Bartsch, 1936) - (POMATIOPSIDAE)
- tangitarensis, Planorbis planorbis tangitarensis J. Germain, 1918 - (PLANORBIDAE)
- tangituensis, Fusinus tangituensis (J. Marwick, 1926 †) - (FASCIOLARIIDAE) (FOSSIL)
- tango, Nassarius tango F. Scarabino, 2004 - (NASSARIIDAE)
- tangolaensis, Crassispira tangolaensis L.G. Hertlein & A.M. Strong, 1951 - syn of: Crassispira unicolor (G.B. I Sowerby, 1834) - (PSEUDOMELATOMIDAE)
- tangshanensis, Ecculiomphalus tangshanensis A.W. Grabau, 1922 † - (OPHILETIDAE) (FOSSIL)
- tanguyae, Vexillum tanguyae E.G. Guillot de Suduiraut & M. Boutet, 2007 - (COSTELLARIIDAE)
- tani, Actinoceras tani A.W. Grabau † - (ACTINOCERATIDAE) (FOSSIL)
- tani, Satsuma arisana tani J.T. Kuroda, 1941 - (CAMAENIDAE)
- tani, Puyseguria tani (A.W.B. Powell, 1939 †) - (NEOLEPTONIDAE) (FOSSIL)
- tani, Puysegeria tani A.W.B. Powell, 1939 † - syn of: Puyseguria tani (A.W.B. Powell, 1939 †) - (NEOLEPTONIDAE) (FOSSIL)
- tani, Trabecula tani E. Saurin, 1959 - (PYRAMIDELLIDAE)
- taniae, Rhinoclavis taniae A. Cecalupo, 2008 - (CERITHIIDAE)
- taniae, Rissoella taniae J.A. Ortea & J. Espinosa, 2005 - (RISSOELLIDAE)
- tanialeonae, Inbiocystiscus tanialeonae Ortea & Espinosa, 2016 - (CYSTISCIDAE)
- tanicus, Crassinella tanicus (W.H. Dall, 1900 †) - (CRASSATELLIDAE) (FOSSIL)
- Taniella, Genus Taniella Finlay & Marwick, 1937 † (NATICIDAE) (FOSSIL)
- taniguchii, Pycnodonte taniguchii I. Hayami & T. Kase, 1992 - (GRYPHAEIDAE)
- Tanimasanoria, Genus Tanimasanoria Kase, 1992 † (ANCILLARIIDAE) (FOSSIL)
- tanimbarensis, Brocchinia tanimbarensis A. Verhecken, 1997 - (CANCELLARIIDAE)
- tanimbarensis, Myrtea tanimbarensis R. von Cosel & P. Bouchet, 2008 - (LUCINIDAE)
- taningi, Japetella taningi (J. Thore, 1949) - (BOLITAENIDAE)
- taningi, Dorsopsis taningi J. Thore, 1949 - syn of: Japetella taningi (J. Thore, 1949) - (BOLITAENIDAE)
- Taningia, Genus Taningia L.M.A.O.E. Joubin, 1931 (OCTOPOTEUTHIDAE)
- tanintharyiensis, Crassostrea gryphoides tanintharyiensis C. Li, Haws, Wang & H. Guo, 2017 - (OSTREIDAE)
- Tanis, syn of: Genus Tapes J.K. Megerle Von Mühlfeld, 1811 (VENERIDAE)
- tanit, Hypophylloceras tanit (Pervinquiére, 1907 †) - (PHYLLOCERATIDAE) (FOSSIL)
- tanitianus, Iberellus companyonii tanitianus Forès & M. Vilella, 1995 - (HELICIDAE)
- tanitianus, Iberellus companyonii tanitianus (Forés & M. Vilella, 1993) - (HELICIDAE)
- taniwha, Graneledone taniwha B.J. O'Shea, 1999 - (OCTOPODIDAE)
- taniwha kubodera, Graneledone taniwha kubodera B.J. O'Shea, 1999 - (OCTOPODIDAE)
- Tankaia, Genus Tankaia M. Sasaki, 1929 (CHIROTEUTHIDAE)
- tankervillei, Amalda tankervillei W.J. Swainson, 1825 - syn of: Amalda tankervillii (W.J. Swainson, 1825) - (ANCILLARIIDAE)
- tankervillei, Cardites tankervillei W. Wood, 1828 - syn of: Cardiocardita tankervillii (W. Wood, 1828) - (CARDITIDAE)
- tankervillei, Pyrene obtusa tankervillei R.P.J. Hervier, 1899 - (COLUMBELLIDAE)
- tankervillei, Costellaria tankervillei J.C. Melvill, 1888 - syn of: Vexillum mirabile (A. Adams, 1853) - (COSTELLARIIDAE)
- tankervillei, Mitra tankervillei J.C. Melvill, 1888 - syn of: Vexillum mirabile (A. Adams, 1853) - (MITRIDAE)
- tankervillei, Dolomena tankervillei W.J. Swainson, 1823 - syn of: Dolomena columba (J.B.P.A. Lamarck, 1822) - (STROMBIDAE)
- tankervillei, Strombus tankervillei W.J. Swainson, 1823 - syn of: Dolomena columba (J.B.P.A. Lamarck, 1822) - (STROMBIDAE)
- tankervillii, Amalda tankervillii (W.J. Swainson, 1825) - (ANCILLARIIDAE)
- tankervillii, Ancilla tankervillii W.J. Swainson, 1825 - syn of: Amalda tankervillii (W.J. Swainson, 1825) - (ANCILLARIIDAE)
- tankervillii, Cardiocardita tankervillii (W. Wood, 1828) - (CARDITIDAE)
- tankervillii, Venericardia tankervillii W. Wood, 1828 - syn of: Cardiocardita tankervillii (W. Wood, 1828) - (CARDITIDAE)
- tankervillii, Cardita tankervillii W. Wood, 1828 - syn of: Cardiocardita tankervillii (W. Wood, 1828) - (CARDITIDAE)
- tankervillii, Eutrochatella tankervillii (J.E. Gray, 1824) - (HELICINIDAE)
- tankervillii, Tonna tankervillii (S.C.T. Hanley, 1860) - (TONNIDAE)
- tanmurrana, Turgenitubulus tanmurrana G.A. Solem, 1985 - (CAMAENIDAE)
- tanna, Cerberilla tanna Er. Marcus & Ev. Marcus, 1960 - (AEOLIDIIDAE)
- tannaensis, Conus tannaensis B.C. Cotton, 1945 - syn of: Turriconus excelsus (G.B. III Sowerby, 1908) - (CONIDAE)
- tannenbergica, Latiala tannenbergica (Fric, 1897 †) - (APORRHAIDAE) (FOSSIL)
- tanneri, Aclis tanneri P. Bartsch, 1947 - syn of: Aclis tenuis A.E. Verrill, 1882 - (ACLIDIDAE)
- tanneri, Drilliola tanneri A.E. Verrill & S. Smith, 1884 - syn of: Retidrillia pruina (R.B. Watson, 1881) - (BORSONIIDAE)
- tanneri, Naesiotus tanneri W.H. Dall, 1895 - (BULIMULIDAE)
- tanneri, Diodora tanneri (A.E. Verrill, 1882) - (FISSURELLIDAE)
- tanneri, Nucula tanneri W.H. Dall, 1908 - syn of: Ennucula grayi (A.V.M.D. D'Orbigny, 1846) - (NUCULIDAE)
- tanneri bartolomensis, Naesiotus tanneri bartolomensis J. Vagvolgyi, 1977 - (BULIMULIDAE)
- tanneri edenensis, Naesiotus tanneri edenensis J. Vagvolgyi, 1977 - (BULIMULIDAE)
- Tannuella, Genus Tannuella Rozanov & al., 1969 † (HELCIONELLIDAE) (FOSSIL)
- tannuelliformis, Anuliconus tannuelliformis Parkhaev, 2004 † - (HELCIONELLIDAE) (FOSSIL)
- tannum, Campeloma tannum N.T. Mattox, 1940 - (VIVIPARIDAE)
- Tannuspira, Genus Tannuspira Missarzhevsky, 1989 † (PELAGIELLIDAE) (FOSSIL)
- tanocola, Albinaria petrosa tanocola H. Nordsieck, 2007 - (CLAUSILIIDAE)
- Tanodon, syn of: Genus Tanaodon Kirk, 1927 † (LYRODESMATIDAE) (FOSSIL)
- tanohatense, Miyakoceras tanohatense Obata, 1967 † - (SILESITIDAE) (FOSSIL)
- tanora, Dentimargo tanora (W.H. Dall, 1927) - (MARGINELLIDAE)
- tanourensis, Kumatrigonia tanourensis (Tamura, 1959 †) - (TRIGONIIDAE) (FOSSIL)
- tanousi, Melanopsis tanousi J.R. Bourguignat, 1884 - syn of: Melanopsis lampra J.R. Bourguignat, 1884 - (MELANOPSIDAE)
- tanousi, Pseudanodonta tanousi J.R. Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848) - (UNIONIDAE)
- tanousi, Vivipara tanousi J.R. Bourguignat, 1880 - syn of: Viviparus acerosus J.R. Bourguignat, 1862 - (VIVIPARIDAE)
- Tanousia, Genus Tanousia Servain, 1881 (HYDROBIIDAE)
- tanquamacus, Turbonilla tanquamacus A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- tanquaryi, Buccinum tanquaryi F.C. Baker, 1919 - syn of: Buccinum cyaneum J.G. Bruguière, 1792 - (BUCCINIDAE)
- tanquereyi, Chloritis tanquereyi (J.C.H. Crosse & P.H. Fischer, 1893) - (CAMAENIDAE)
- tanschauria, Paludomus tanschauria J.F. Gmelin - (PALUDOMIDAE)
- tanseiae, Granulotriforis tanseiae (S. Kosuge, 1967) - (NEWTONIELLIDAE)
- tanseimaruae, Nuculana tanseimaruae E. Tsuchida & T.A. Okutani, 1985 - (NUCULANIDAE)
- tanseimaruae, Frigidoalvania tanseimaruae K. Hasegawa, 2014 - (RISSOIDAE)
- tanseimaruae, Brookula tanseimaruae E. Tsuchida & S. Hori, 1996 - (SEGUENZIOIDEA (UNASSIGNED))
- tanshumaruae, Punctulum tanshumaruae K. Hasegawa, 2014 - (RISSOIDAE)
- tanta, Kokotschashvilia tanta A.A. Schileyko, 1978 - (HYGROMIIDAE)
- tantaensis, Hemiphaedusa tantaensis G.L. Chan & W.L. Wu, 1977 - (CLAUSILIIDAE)
- tantalea, Bolma tantalea A. Alf, P. Maestrati & P. Bouchet, 2010 - (TURBINIDAE)
- tantalus, Auriculella tantalus (H.A. Pilsbry & C.M. Cooke, 1915) - (ACHATINELLIDAE)
- tantalus, Bulimus tantalus L. Pfeiffer, 1868 - syn of: Chondrus zebrula (A.E.J. Férussac, 1821) - (BULIMULIDAE)
- tantalus, Chondrus zebra tantalus L. Pfeiffer, 1868 - (ENIDAE)
- tantalus, Geophorus tantalus P. Bartsch, 1918 - (HELICINIDAE)
- tantalus, Microceramus tantalus C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- tantalus, Holospira tantalus P. Bartsch, 1906 - (UROCOPTIDAE)
- tantelyae, Boucardicus tantelyae K.C. Emberton, 2010 - (CYCLOPHORIDAE)
- tantelyi, Favartia tantelyi R. Houart & V. Héros, 2013 - (MURICIDAE)
- tantherina, Rathouisia tantherina (P.M. Heude, 1882) - (RATHOUISIIDAE)
- tantilla, Leptachatina tantilla C.M. Cooke, 1911 - (AMASTRIDAE)
- tantilla, Hemiphaedusa tantilla (H.A. Pilsbry, 1902) - (CLAUSILIIDAE)
- tantilla, Albinaria tantilla R.A.M. Brandt, 1962 - (CLAUSILIIDAE)
- tantilla, Sericata tantilla (O. Böttger, 1877) - syn of: Albinaria tantilla R.A.M. Brandt, 1962 - (CLAUSILIIDAE)
- tantilla, Persicula tantilla A.A. Gould, 1860 - syn of: Granulina tantilla (A.A. Gould, 1860) - (CYSTISCIDAE)
- tantilla, Diplommatina tantilla (A.A. Gould, 1859) - (DIPLOMMATINIDAE)
- tantilla, Eulima tantilla (C.B. Adams, 1861) - (EULIMIDAE)
- tantilla, Lucidella tantilla H.A. Pilsbry, 1902 - (HELICINIDAE)
- tantilla, Liotina tantilla (A. Adams, 1863) - (LIOTIIDAE)
- tantilla, Peasiella tantilla (A.A. Gould, 1849) - (LITTORINIDAE)
- tantilla, Granulina tantilla (A.A. Gould, 1860) - (MARGINELLIDAE)
- tantilla, Taniella tantilla J. Marwick, 1960 † - (NATICIDAE) (FOSSIL)
- tantilla, Turbonilla tantilla A. Hornung & G. Mermod, 1924 - (PYRAMIDELLIDAE)
- tantilla, Putilla tantilla (C.R. Laws, 1936 †) - (SEGUENZIOIDEA (UNASSIGNED)) (FOSSIL)
- tantilla, Strobeus tantilla Rowley, 1900 † - (SOLENISCIDAE) (FOSSIL)
- tantilla, Euterebra tantilla (E.A. Smith, 1873) - (TEREBRIDAE)
- tantilla, Myurella tantilla E.A. Smith, 1873 - syn of: Euterebra tantilla (E.A. Smith, 1873) - (TEREBRIDAE)
- tantilla, Terebra tantilla E.A. Smith, 1873 - syn of: Euterebra tantilla (E.A. Smith, 1873) - (TEREBRIDAE)
- tantilla, Gibbula tantilla T.A. de M. Monterosato, 1890 - (TROCHIDAE)
- tantilla, Constantia tantilla A. Adams, 1861 - (VANIKORIDAE)
- tantilla, Nutricola tantilla (A.A. Gould, 1853) - (VENERIDAE)
- tantilla, Nesopupa tantilla (A.A. Gould, 1848) - (VERTIGINIDAE)
- tantilla, Paravitrea tantilla L.R. Hubricht, 1963 - (ZONITIDAE)
- tantilla subinfracostata, Peasiella tantilla subinfracostata G. Nevill, 1885 - syn of: Peasiella infracostata (A. Issel, 1869) - (LITTORINIDAE)
- tantilla subinfracostata, Bembicium tantilla subinfracostata G. Nevill, 1885 - syn of: Peasiella infracostata (A. Issel, 1869) - (LITTORINIDAE)
- tantilloides, Trabecula tantilloides (S. Nomura, 1938) - (PYRAMIDELLIDAE)
- tantillum, Stylocyrtoceras tantillum (Stauffer, 1937 †) - (BASSLEROCERATIDAE) (FOSSIL)
- tantillum, Cerion gundlachi tantillum C.G. Aguayo & M.L. Jaume, 1951 - (CERIONIDAE)
- tantillum, Deltoceras tantillum Stauffer, 1937 † - syn of: Stylocyrtoceras tantillum (Stauffer, 1937 †) - (DELTOCERATIDAE) (FOSSIL)
- tantillus, Bembicium tantillus A.A. Gould, 1849 - syn of: Peasiella tantilla (A.A. Gould, 1849) - (LITTORINIDAE)
- tantillus, Neoplanorbis tantillus H.A. Pilsbry, 1906 - (PLANORBIDAE)
- tantillus, Strophostylus tantillus W.J. Gordon & E.L. Yochelson, 1983 † - (PLATYCERATIDAE) (FOSSIL)
- tantillus, Trochus tantillus A.A. Gould, 1849 - syn of: Peasiella tantilla (A.A. Gould, 1849) - (TROCHIDAE)
- tantillus, Venus tantillus A.A. Gould, 1853 - syn of: Nutricola tantilla (A.A. Gould, 1853) - (VENERIDAE)
- tantula, Clavatula tantula T.A. Conrad, 1848 † - syn of: Syntomodrillia tantula (T.A. Conrad, 1848 †) - (CLAVATULIDAE) (FOSSIL)
- tantula, Gibberula tantula S. Gofas, 1989 - (CYSTISCIDAE)
- tantula, Splendrillia tantula (P. Bartsch, 1934) - (DRILLIIDAE)
- tantula, Syntomodrillia tantula (T.A. Conrad, 1848 †) - (DRILLIIDAE) (FOSSIL)
- tantula, Syntomodrillia tantula P. Bartsch, 1934 - syn of: Syntomodrillia portoricana P.J. Fallon, 2016 - (DRILLIIDAE)
- tantula, Splendrillia tantula P. Bartsch, 1934 - syn of: Syntomodrillia portoricana P.J. Fallon, 2016 - (DRILLIIDAE)
- tantula, Eulimella tantula A. Peñas & E. Rolán, 2016 - (PYRAMIDELLIDAE)
- tantula, Terebra tantula T.A. Conrad, 1848 † - (TEREBRIDAE) (FOSSIL)
- tantula, Zeacuminia tantula J. Marwick, 1931 † - (TEREBRIDAE) (FOSSIL)
- tantula, Pleurotoma tantula T.A. Conrad, 1848 † - syn of: Syntomodrillia tantula (T.A. Conrad, 1848 †) - (TURRIDAE) (FOSSIL)
- TANTULIDAE Rankin, 1979 - Family (GASTROPODA-HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-ACOCHLIDIACEA [Order]-ACOCHLIDIOIDEA [Superfamily])
- tantulum, Triimitoceras tantulum D. Korn & al., 2010 † - (PRIONOCERATIDAE) (FOSSIL)
- Tantulum, Genus Tantulum L. Rankin, 1979 (TANTULIDAE)
- Tantunia, Genus Tantunia Kollmann, 2005 † (FICIDAE) (FOSSIL)
- Tanuella, syn of: Genus Tannuella Rozanov & al., 1969 † (HELCIONELLIDAE) (FOSSIL)
- tanuga, Euglesa tanuga V.J. Timm, 1976 - syn of: Pisidium nitidum L. Jenyns, 1832 - (SPHAERIIDAE)
- tanuloa, Fluviopupa tanuloa S. Zielske & M. Haase, 2014 - (HYDROBIIDAE)
- tanya, Sclerodoris tanya (Ev. Marcus, 1971) - (DISCODORIDIDAE)
- tanybracheia, Sepia tanybracheia D.G. Reid, 2000 - (SEPIIDAE)
- Tanycameroceras, Genus Tanycameroceras Chen & Qi in Chen, Zou, Chen & Qi, 1979 † (ELLESMEROCERIDA (UNASSIGNED)) (FOSSIL)
- Tanychlamys, syn of: Genus Macrochlamys W.H. Benson, 1832 in J.E. Gray, 1847 (ARIOPHANTIDAE)
- tanydeira, Coelocentrum tanydeira F.G. Thompson, 1968 - (UROCOPTIDAE)
- tanymastix, Aglotrochus tanymastix F.G. Thompson, 2006 - (HUMBOLDTIANIDAE)
- Tanysiphon, Genus Tanysiphon W.H. Benson, 1858 (MACTRIDAE)
- tanyspira, Turris tanyspira R.N. Kilburn, 1975 - (TURRIDAE)
- Tanystoma, syn of: Genus Hypselostoma W.H. Benson, 1856 (HYPSELOSTOMATIDAE)
- tanyumphalos, Cylichna tanyumphalos Á. Valdés, 2008 - (CYLICHNIDAE)
- tanzanensis, Aplysia tanzanensis A. Bebbington, 1974 - (APLYSIIDAE)
- tanzanensis, Eubranchus tanzanensis M. Edmunds, 1969 - (EUBRANCHIDAE)
- Tanzaniella, Genus Tanzaniella D. Lupu, 1979 ? (NERITIDAE)
- Tanzanitrigonia, Genus Tanzanitrigonia M.R. Cooper, 2015 † (RUTITRIGONIIDAE) (FOSSIL)
- Tanzartemon, Genus Tanzartemon P. Tattersfield & B. Rowson, 2011 (STREPTAXIDAE)
- tanzawaensis, Helicarion tanzawaensis E. Sorita & M. Kawana, 1983 - (HELICARIONIDAE)
- taochorum, Caucasocressa taochorum B. Hausdorf, 2003 - (HYGROMIIDAE)
- taolantehezana, Gulella taolantehezana K.C. Emberton, 2002 - (STREPTAXIDAE)
- Taonidium, syn of: Genus Galiteuthis L.M.A.O.E. Joubin, 1898 (CRANCHIIDAE)
- Taonius, Genus Taonius J.J.S. Steenstrup, 1861 (CRANCHIIDAE)
- taonura, Ninnia taonura N.I. Andrusov, 1909 † - (NERITIDAE) (FOSSIL)
- Taoqupoceras, Genus Taoqupoceras Lai in Gao, Lai & Wen, 1982 † (DISCOSORIDA (UNASSIGNED)) (FOSSIL)
- taosensis, Donaldospira taosensis B.S. Kues & Batten, 2001 † - (ORTHONEMIDAE) (FOSSIL)
- Taosia, Subgenus Stegocoelia (Taosia) Girty, 1939 † (GONIASMATIDAE) (FOSSIL)
- taourirtense, Mimimitoceras taourirtense W. Korn, Bockwinkel & Ebbighausen, 2015 † - (PRIONOCERATIDAE) (FOSSIL)
- taouzense, Adiagoceras taouzense Kröger, 2008 † - (ARIONOCERATIDAE) (FOSSIL)
- taouzensis, Pharciceras taouzensis Termier, 1950 † - syn of: Taouzites taouzensis (Termier, 1950 †) - (PHARCICERATIDAE) (FOSSIL)
- taouzensis, Taouzites taouzensis (Termier, 1950 †) - (TAOUZITIDAE) (FOSSIL)
- Taouzites, Genus Taouzites Korn , 2001 † (TAOUZITIDAE) (FOSSIL)
- TAOUZITIDAE Korn, 2001 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-AGONIATITIDA [Order]-GEPHUROCERATOIDEA [Superfamily]) (FOSSIL)
- Tapada, syn of: Subgenus Helix (Cantareus) A. Risso, 1826 (HELICIDAE)
- Tapada, syn of: Genus Succinea J.P.R. Draparnaud, 1801 (SUCCINEIDAE)
- tapadoides, Stenostylus tapadoides (R.A. Philippi, 1867) - (ORTHALICIDAE)
- tapajozensis, Doryssa tapajozensis (H.A. Pilsbry in F.C. Baker, 1931) - (PACHYCHILIDAE)
- Tapanecphora, Genus Tapanecphora E.J. Petuch, 1988 (MURICIDAE)
- tapanensis, Mayabina tapanensis (J.C.H. Crosse & P.H. Fischer, 1882) - (PHYSIDAE)
- tapanensis guatemalensis, Aplexa tapanensis guatemalensis P.H. Fischer & J.C.H. Crosse, 1886 - syn of: Mayabina tapanensis (J.C.H. Crosse & P.H. Fischer, 1882) - (PHYSIDAE)
- Tapashanites, Genus Tapashanites Zhao & Liang, 1965 † (TAPASHANITIDAE) (FOSSIL)
- TAPASHANITIDAE Zhao & al., 1978 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-CERATITIDA [Order]-XENODISCOIDEA [Superfamily]) (FOSSIL)
- tapeina, Cancellaria tapeina W.P. Woodring, 1970 † - (CANCELLARIIDAE) (FOSSIL)
- tapeina, Cypraeorbis tapeina T.A. Conrad 1865 † - (CYPRAEIDAE) (FOSSIL)
- tapeinus, Leopecten gatunensis tapeinus W.P. Woodring, 1982 - (PECTINIDAE)
- tapensis, Chlamys tapensis Milova, 1985 † - (PECTINIDAE) (FOSSIL)
- Tapes, Genus Tapes J.K. Megerle Von Mühlfeld, 1811 (VENERIDAE)
- tapetepersicum, Latirus tapetepersicum P.F. Röding, 1798 - syn of: Latirus gibbulus (J.F. Gmelin, 1791) - (FASCIOLARIIDAE)
- tapetepersicum, Fusus tapetepersicum P.F. Röding, 1798 - syn of: Latirus gibbulus (J.F. Gmelin, 1791) - (FASCIOLARIIDAE)
- tapetus, Conus tapetus R.C. Hoerle, 1976 † - (CONIDAE) (FOSSIL)
- Taphius, Genus Taphius H. Adams & A. Adams, 1855 (PLANORBIDAE)
- Taphon, Genus Taphon H. Adams & A. Adams, 1853 (MELONGENIDAE)
- taphria, Antalis taphria (W.H. Dall, 1889) - (DENTALIIDAE)
- taphria, Saccella taphria (W.H. Dall, 1897) - (NUCULANIDAE)
- taphria, Nucula taphria W.H. Dall, 1898 † - (NUCULIDAE) (FOSSIL)
- taphrium, Buccinum taphrium W.H. Dall, 1891 - syn of: Sulcosinus taphrius (W.H. Dall, 1891) - (BUCCINIDAE)
- taphrium, Dinocardium taphrium W.H. Dall, 1900 † - (CARDIIDAE) (FOSSIL)
- taphrius, Sulcosinus taphrius (W.H. Dall, 1891) - (BUCCINIDAE)
- taphrodes, Tropidorissoia taphrodes J.R. le B. Tomlin & L.J. Shackleford, 1915 - (BARLEEIIDAE)
- Taphrospira, Genus Taphrospira W.T. Blanford, 1905 (ARIOPHANTIDAE)
- Taphrostomia, Genus Taphrostomia Cossmann, 1921 † (OPISTHOBRANCHIA (UNASSIGNED)) (FOSSIL)
- taphrus, Conus taphrus W.P. Woodring, 1970 † - (CONIDAE) (FOSSIL)
- tapia, Tejonia tapia (Feruglio, 1935 †) - (NATICIDAE) (FOSSIL)
- tapiai, Frenguelliella tapiai A. Lambert, 1944 † - (TRIGONIIDAE) (FOSSIL)
- tapina, Australdonta tapina G.A. Solem, 1976 - (ENDODONTIDAE)
- tapina, Lucapinella clypeata tapina (A. De Gregorio, 1884 †) - (FISSURELLIDAE) (FOSSIL)
- tapina, Callocardia tapina A.E.M. Cossmann, 1886 † - (VENERIDAE) (FOSSIL)
- Tapinogyra, Genus Tapinogyra Wängberg-Eriksson, 1979 † (CLISOSPIRIDAE) (FOSSIL)
- Tapinotomaria, Genus Tapinotomaria Batten, 1956 † (PORTLOCKIELLIDAE) (FOSSIL)
- tapira, Niteoliva tapira (A.A. Olsson, 1932 †) - (OLIVELLIDAE) (FOSSIL)
- tapirina, Cavellia tapirina (F.W. Hutton, 1883) - (CHAROPIDAE)
- tapirulus, Ancylus tapirulus W. Polinski, 1929 - (PLANORBIDAE)
- tappaniana, Partulina tappaniana (C.B. Adams, 1851) - (ACHATINELLIDAE)
- tappaniana, Gastrocopta tappaniana (C.B. Adams, 1842) - (GASTROCOPTIDAE)
- tappaniana, Fadyenia tappaniana (C.B. Adams, 1851) - (HELICINIDAE)
- tappaniana, Parachondria tappaniana (C.B. Adams, 1851) - (POMATIIDAE)
- tappaniana ampulla, Partulina tappaniana ampulla J.T. Gulick, 1856 - (ACHATINELLIDAE)
- tappaniana dubiosa, Partulina tappaniana dubiosa (C.B. Adams, 1851) - (ACHATINELLIDAE)
- tappaniana eburnea, Partulina tappaniana eburnea J.T. Gulick, 1856 - (ACHATINELLIDAE)
- tappaniana fasciata, Partulina tappaniana fasciata J.T. Gulick, 1856 - (ACHATINELLIDAE)
- tappanianus, Unio tappanianus I. Lea, 1838 - syn of: Lasmigona subviridis (T.A. Conrad, 1835) - (UNIONIDAE)
- tapparonei, Homalopoma tapparonei (G. Caramagna, 1888) - (COLLONIIDAE)
- tapparonianus, Bulinus tapparonianus M. Paulucci, 1882 - syn of: Bulinus truncatus (J.V. Audouin, 1827) - (PLANORBIDAE)
- tapparonii, Hexaplex tapparonii (L.M.D. Bellardi, 1872 †) - (MURICIDAE) (FOSSIL)
- Tapponnierites, Genus Tapponnierites Guex & al., 2005 † (SAGECERATIDAE) (FOSSIL)
- tappuensis, Provanna tappuensis A. Kaim, B.W. Jenkins & A. Warén, 2008 † - (PROVANNIDAE) (FOSSIL)
- taprobanensis, Mactra taprobanensis H.B. Preston, 1904 - syn of: Mactra lilacea J.B.P.A. Lamarck, 1818 - (MACTRIDAE)
- taprobanensis, Paphies taprobanensis W. Wood, 1828 - syn of: Atactodea striata (J.F. Gmelin, 1791) - (MESODESMATIDAE)
- taprobanensis, Brachidontes taprobanensis H.B. Preston, 1915 - syn of: Brachidontes striatulus (S.C.T. Hanley, 1843) - (MYTILIDAE)
- taprobanensis, Callistoctopus taprobanensis (G.C. Robson, 1926) - (OCTOPODIDAE)
- taprobanica, Glessula pachycheila taprobanica H.A. Pilsbry, 1908 - (SUBULINIDAE)
- taprurensis, Bela taprurensis (P.M. Pallary, 1904) - (MANGELIIDAE)
- taprurensis, Fehria taprurensis P.M. Pallary, 1904 - syn of: Bela taprurensis (P.M. Pallary, 1904) - (MANGELIIDAE)
- taprurensis, Ginnania taprurensis P.M. Pallary, 1904 - syn of: Bela taprurensis (P.M. Pallary, 1904) - (MANGELIIDAE)
- taprurensis albina, Bela taprurensis albina (P.M. Pallary, 1904) - (MANGELIIDAE)
- taprurensis recticosta, Bela taprurensis recticosta (P.M. Pallary, 1904) - (MANGELIIDAE)
- tapuia, Cyclodontina tapuia R.B. Salvador & L.R.L. Simone, 2014 - (ODONTOSTOMIDAE)
- tapunagai, Laevityphis tapunagai J. Fleming, 1943 † - (MURICIDAE) (FOSSIL)
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pay
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put
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