- imtatschanensis, Warthia imtatschanensis A.M. Popov, 1957 † - (EUPHEMITIDAE) (FOSSIL)
- imula, Candidula imula É.A.A. Locard, 1899 - syn of: Candidula intersecta (J.L.M. Poiret, 1801) - (HYGROMIIDAE)
- imum, Pleurotoma imum É.A.A. Locard, 1897 - syn of: Phymorhynchus sulciferus (K.J. Bush, 1893) - (TURRIDAE)
- imus, Musculus imus (P. Bartsch, 1915) - (MYTILIDAE)
- imutensis, Nuraya imutensis Tashiro, 1972 † - (MEGATRIGONIIDAE) (FOSSIL)
- imutensis, Microtrigonia imutensis Tashiro, 1972 † - syn of: Nuraya imutensis Tashiro, 1972 † - (MEGATRIGONIIDAE) (FOSSIL)
- ina, Amussium ina P. Dautzenberg & A.R.J.B. Bavay, 1912 - syn of: Propeamussium ina (P. Dautzenberg & A.R.J.B. Bavay, 1912) - (PECTINIDAE)
- ina, Propeamussium ina (P. Dautzenberg & A.R.J.B. Bavay, 1912) - (PROPEAMUSSIIDAE)
- ina, Turbonilla ina P. Bartsch, 1917 - (PYRAMIDELLIDAE)
- ina, Lucidestea ina (K.H.J. Thiele, 1925) - (RISSOIDAE)
- ina, Unedogemmula ina F.S. MacNeil, 1960 † - (TURRIDAE) (FOSSIL)
- inabai, Bithynia inabai T. Habe, 1985 - (BITHYNIIDAE)
- inabai, Eubranchus inabai K. Baba, 1964 - (EUBRANCHIDAE)
- inabsolutum, Cerithium lamellosum inabsolutum G.P. Deshayes, 1864 † - (CERITHIIDAE) (FOSSIL)
- inacayali, Pisidium inacayali C.F. Ituarte, 1996 - (SPHAERIIDAE)
- inaccessa, Mitrella inaccessa K. Monsecour & D. Monsecour, 2016 - (COLUMBELLIDAE)
- inaccessibilis, Hemicycla bidentalis inaccessibilis K. Groh, 1988 - (HELICIDAE)
- Inachus, syn of: Genus Centrifugus Bronn, 1835 † (EUOMPHALIDAE) (FOSSIL)
- inactiniformis, Leptoconchus inactiniformis E. Gittenberger & A. Gittenberger, 2011 - (MURICIDAE)
- inadrina, Syntomodrillia inadrina (W.C. Mansfield, 1925 †) - (DRILLIIDAE) (FOSSIL)
- inae, Vitrea inae E. Gittenberger & T.E.J. Ripken, 1991 - (PRISTILOMATIDAE)
- inaegualis, Axinopsida orbiculata inaegualis (G.O. Sars, 1878) - (THYASIRIDAE)
- inaequa, Haugia inaequa Buckman, 1898 † - syn of: Esericeras eseri Oppel, 1856 † - (PHYMATOCERATIDAE) (FOSSIL)
- inaequabile, Cameroceras inaequabile (Miller, 1882 †) - (ENDOCERATIDAE) (FOSSIL)
- inaequabilis, Austrotoma inaequabilis J. Marwick, 1929 † - (CONOIDEA (UNASSIGNED)) (FOSSIL)
- inaequabilis, Turbonilla inaequabilis A. Peñas & E. Rolán, 1997 - (PYRAMIDELLIDAE)
- inaequale, Dentalium inaequale H.G. Bronn, 1831 † - (DENTALIIDAE) (FOSSIL)
- inaequale, Epitonium inaequale (K.H.J. Thiele, 1925) - (EPITONIIDAE)
- inaequale, Eogaudryceras inaequale Breistroffer, 1947 † - (GAUDRYCERATIDAE) (FOSSIL)
- inaequale, Pachypoma inaequale W.H. Dall, 1909 - (TURBINIDAE)
- inaequale depressum, Pachypoma inaequale depressum W.H. Dall, 1909 - syn of: Pachypoma inaequale W.H. Dall, 1909 - (TURBINIDAE)
- inaequale pacifica, Pachypoma inaequale pacifica W.H. Dall, 1919 - (TURBINIDAE)
- inaequale spiratum, Pachypoma inaequale spiratum W.H. Dall, 1911 - syn of: Pomaulax spiratus (W.H. Dall, 1911) - (TURBINIDAE)
- inaequalicostatus, Lytoceras inaequalicostatus (A.V.M.D. D'Orbigny 1840 †) - (LYTOCERATIDAE) (FOSSIL)
- inaequalis, Bathyarca inaequalis W.H. Dall, 1927 - syn of: Bathyarca grandis (W. Leche, 1878) - (ARCIDAE)
- inaequalis, Aviculopecten inaequalis Hind, 1904 † - (AVICULOPECTINIDAE) (FOSSIL)
- inaequalis, Drymaeus inaequalis L. Pfeiffer, 1857 - (BULIMULIDAE)
- inaequalis, Cardium inaequalis Bell, 1893 † - (CARDIIDAE) (FOSSIL)
- inaequalis, Cardiocardita inaequalis R.A. Philippi, 1887 † - (CARDITIDAE) (FOSSIL)
- inaequalis, Cochlodina inaequalis (A. Schmidt, 1868) - (CLAUSILIIDAE)
- inaequalis, Mitrella inaequalis K. Monsecour & D. Monsecour, 2016 - (COLUMBELLIDAE)
- inaequalis, Conus inaequalis L.A. Reeve, 1849 - syn of: Lautoconus ventricosus (J.F. Gmelin, 1791) - (CONIDAE)
- inaequalis, Insolentia inaequalis J. Marwick, 1931 † - (CONOIDEA (UNASSIGNED)) (FOSSIL)
- inaequalis, Corbula inaequalis T. Say, 1824 † - (CORBULIDAE) (FOSSIL)
- inaequalis, Pedipes inaequalis C.B. Adams - syn of: Laemodonta striata (R.A. Philippi, 1846) - (ELLOBIIDAE)
- inaequalis, Ficus inaequalis G.B. Campbell, 1961 † - (FICIDAE) (FOSSIL)
- inaequalis, Diodora inaequalis Sowerby, 1835 - (FISSURELLIDAE)
- inaequalis, Axinactis inaequalis (G.B. I Sowerby, 1832) - (GLYCYMERIDIDAE)
- inaequalis, Glycymeris inaequalis G.B. I Sowerby, 1833 - syn of: Axinactis inaequalis (G.B. I Sowerby, 1832) - (GLYCYMERIDIDAE)
- inaequalis, Glycymeris inaequalis C.F.F. von Krauss, 1848 - syn of: Glycymeris connollyi J.R. le B. Tomlin, 1926 - (GLYCYMERIDIDAE)
- inaequalis, Lucidella inaequalis (L. Pfeiffer) - (HELICINIDAE)
- inaequalis, Mauidrillia inaequalis Powell, 1942 † - (HORAICLAVIDAE) (FOSSIL)
- inaequalis, Lauria inaequalis C.A. Westerlund, 1887 - syn of: Lauria cylindracea (E.M. Da Costa, 1778) - (LAURIIDAE)
- inaequalis, Mactra inaequalis L.A. Reeve, 1854 - (MACTRIDAE)
- inaequalis, Leptotrophon inaequalis R. Houart, 1995 - (MURICIDAE)
- inaequalis, Sphenia inaequalis E.A. Smith, 1893 - syn of: Sphenia perversa W.T. Blanford, 1867 - (MYIDAE)
- inaequalis, Leiosolenus inaequalis F.P. Jousseaume in É. Lamy, 1919 - syn of: Leiosolenus tripartitus (F.P. Jousseaume, 1894) - (MYTILIDAE)
- inaequalis, Diadochoceras inaequalis Egoian, 1965 † - (PARAHOPLITIDAE) (FOSSIL)
- inaequalis, Talochlamys inaequalis H.H. Dijkstra & R.G. Moolenbeek, 2008 - (PECTINIDAE)
- inaequalis, Pecten inaequalis A.E.M. Cossmann & A. Lambert, 1884 † - (PECTINIDAE) (FOSSIL)
- inaequalis, Pecten inaequalis G.B. II Sowerby, 1842 - syn of: Haumea minuta (C. Linnaeus, 1758) - (PECTINIDAE)
- inaequalis, Pholadomya inaequalis Phillips, 1871 † - (PHOLADOMYIDAE) (FOSSIL)
- inaequalis, Pichleria inaequalis (Münster, 1841 †) - (PICHLERIIDAE) (FOSSIL)
- inaequalis, Pichleria inaequalis C. Chen, 1976 † - (PICHLERIIDAE) (FOSSIL)
- inaequalis, Pomatias inaequalis T.V. Wollaston, 1878 - syn of: Pomatias raricosta (T.V. Wollaston, 1878) - (POMATIIDAE)
- inaequalis, Turbonilla inaequalis J.C. Melvill, 1904 - (PYRAMIDELLIDAE)
- inaequalis, Cingulina inaequalis E. Saurin, 1958 - (PYRAMIDELLIDAE)
- inaequalis, Ougapia inaequalis (L. Pfeiffer, 1854) - (RHYTIDIDAE)
- inaequalis, Tellina inaequalis S.C.T. Hanley, 1844 - syn of: Tellina gargadia (C. Linnaeus, 1758) - (TELLINIDAE)
- inaequalis, Tentaculites inaequalis (K.E.I. von Eichwald, 1860 †) - (TENTACULITIDAE) (FOSSIL)
- inaequalis, Paraterebra inaequalis (Sowerby, 1849 †) - (TEREBRIDAE) (FOSSIL)
- inaequalis, Axinulus inaequalis A.E. Verrill & K.J. Bush, 1898 - syn of: Thyasira gouldii R.A. Philippi, 1845 - (THYASIRIDAE)
- inaequalis, Bruetia inaequalis (G.P. Deshayes, 1857 †) - (UNGULINIDAE) (FOSSIL)
- inaequalis, Contradens inaequalis (A. de Rochebrune, 1882) - (UNIONIDAE)
- inaequalis, Anodonta inaequalis R. Tate, 1870 - syn of: Anodontites inaequivalva (I. Lea, 1868) - (UNIONIDAE)
- inaequalis mansfieldi, Corbula inaequalis mansfieldi H.G. Richards, 1947 † - (CORBULIDAE) (FOSSIL)
- inaequata, Albinaria discolor inaequata (O. Böttger, 1878) - (CLAUSILIIDAE)
- inaequelineata, Cryptaulax inaequelineata A. Nützel & Senowbari-Daryan, 1999 † - (CRYPTAULACIDAE) (FOSSIL)
- inaequelineata, Xystrella inaequelineata Nutzel & Senowbary-Daryan, 1999 † - syn of: Pseudocerithium inaequelineatus Nutzel & Senowbary-Daryan, 1999 † - (CRYPTAULACIDAE) (FOSSIL)
- inaequelineatus, Pseudocerithium inaequelineatus Nutzel & Senowbary-Daryan, 1999 † - (CRYPTAULACIDAE) (FOSSIL)
- Inaequiceramus, Genus Inaequiceramus Heinz, 1932 † (INOCERAMIDAE) (FOSSIL)
- inaequiconvexum, Cardium inaequiconvexum A.E.M. Cossmann & G. Pissarro, 1927 † - (CARDIIDAE) (FOSSIL)
- inaequicosta, Uptonia inaequicosta Geczy, 1976 † - (POLYMORPHITIDAE) (FOSSIL)
- inaequicostalis, Chlamys inaequicostalis J.B.P.A. Lamarck, 1819 † - (PECTINIDAE) (FOSSIL)
- inaequicostata, Antalis inaequicostata (P. Dautzenberg, 1891) - (DENTALIIDAE)
- inaequicostata, Mysidioptera inaequicostata C. Chen, 1976 † - (LIMIDAE) (FOSSIL)
- inaequicostata, Costatoria inaequicostata (Klipstein, 1843 †) - (MYOPHORIIDAE) (FOSSIL)
- inaequicostatum, Dentalium inaequicostatum P. Dautzenberg, 1891 - syn of: Antalis inaequicostata (P. Dautzenberg, 1891) - (DENTALIIDAE)
- inaequicostatus, Kamerunoceras inaequicostatus Wiedmann, 1960 † - (ACANTHOCERATIDAE) (FOSSIL)
- inaequicostatus, Eumorphotis inaequicostatus (Benecke, 1868 †) - (HETEROPECTINIDAE) (FOSSIL)
- inaequicostatus, Anasibirites inaequicostatus L. Waagen, 1895 † - syn of: Anasibirites kingianus (L. Waagen, 1895 †) - (MELAGATHICERATIDAE) (FOSSIL)
- inaequicostatus, Nassarius inaequicostatus (L.M.D. Bellardi, 1882 †) - (NASSARIIDAE) (FOSSIL)
- inaequicostatus, Sibirites inaequicostatus L. Waagen, 1895 † - syn of: Anasibirites kingianus (L. Waagen, 1895 †) - (SIBIRITIDAE) (FOSSIL)
- inaequicrenata, Hippochaeta inaequicrenata (Cossmann 1908) † - (MALLEIDAE) (FOSSIL)
- inaequicrenatus, Gyrineum inaequicrenatus A.E.M. Cossmann & M.A. Peyrot, 1923 † - (RANELLIDAE) (FOSSIL)
- Inaequidens, Genus Inaequidens Pojeta & Gilbert-Tomlinson, 1977 † (CARDIOLARIIDAE) (FOSSIL)
- inaequidens, Cystiscus inaequidens W.L. May, 1913 - syn of: Cystiscus cratericula (R. Tate & W.L. May, 1900) - (CYSTISCIDAE)
- inaequidens, Granulina inaequidens W.L. May, 1913 - syn of: Cystiscus cratericula (R. Tate & W.L. May, 1900) - (MARGINELLIDAE)
- inaequifurcatum, Hecticoceras inaequifurcatum Zeiss, 1959 † - (OPPELIIDAE) (FOSSIL)
- inaequilabiata, Proadusta inaequilabiata F. Sacco, 1894 † - (CYPRAEIDAE) (FOSSIL)
- inaequilabrum, Chondropoma inaequilabrum P. Bartsch, 1946 - syn of: Chondropoma swifti inequilabrum P. Bartsch, 1946 - (POMATIIDAE)
- inaequilatera, Neocrassina inaequilatera (Nyst 1845) † - (ASTARTIDAE) (FOSSIL)
- inaequilatera, Astarte inaequilatera Z.A. Filatova in O.A. Scarlato, 1981 - syn of: Astarte hakodatensis M. Yokoyama, 1920 - (ASTARTIDAE)
- inaequilatera, Callucina inaequilatera (G.P. Deshayes, 1857 †) - (LUCINIDAE) (FOSSIL)
- inaequilatera, Spisula inaequilatera (P. Nyst, 1845 †) - (MACTRIDAE) (FOSSIL)
- inaequilaterale, Leonardocheilus inaequilaterale (Miller & Youngquist, 1949 †) - (MOSQUOCERATIDAE) (FOSSIL)
- inaequilateralia, Trinacria inaequilateralia (Orbigny, 1850 †) - (NOETIIDAE) (FOSSIL)
- inaequilateralis, Anadara inaequilateralis R.J.L. Guppy, 1866 † - (ARCIDAE) (FOSSIL)
- inaequilateralis, Scapharca inaequilateralis C.J. Maury, 1917 † - (ARCIDAE) (FOSSIL)
- inaequilateralis, Corbicula inaequilateralis T. Prime, 1861 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- inaequilateralis, Spisula inaequilateralis (Meyer, 1886 †) - (MACTRIDAE) (FOSSIL)
- inaequilateralis, Pseudoglomus inaequilateralis (E.A. Smith, 1885) - (MALLETIIDAE)
- inaequilateralis, Malletia inaequilateralis T. Habe, 1951 - (MALLETIIDAE)
- inaequilateralis, Psammobia inaequilateralis A.E.M. Cossmann, 1882 † - (PSAMMOBIIDAE) (FOSSIL)
- inaequilateralis, Glomus inaequilateralis E.A. Smith, 1885 - syn of: Pseudoglomus inaequilateralis (E.A. Smith, 1885) - (SAREPTIDAE)
- inaequilobata, Hindsiella inaequilobata (G.P. Deshayes, 1858 †) - (GALEOMMATIDAE) (FOSSIL)
- inaequinodum, Douvilleiceras inaequinodum (F.A. von Quenstedt, 1849 †) - (DOUVILLEICERATIDAE) (FOSSIL)
- inaequiornatus, Sirenites inaequiornatus McLearn, 1947 † - syn of: Pseudosirenites pardoneti McLearn, 1940 † - (TRACHYCERATIDAE) (FOSSIL)
- inaequipartita, Erosaria inaequipartita T.A. de M. Monterosato, 1897 - syn of: Erosaria spurca (C. Linnaeus, 1758) - (CYPRAEIDAE)
- inaequipartita, Mactra inaequipartita A.E.M. Cossmann & M.A. Peyrot, 1909 † - (MACTRIDAE) (FOSSIL)
- inaequipartita, Triphora inaequipartita G.P. Deshayes, 1864 † - (TRIPHORIDAE) (FOSSIL)
- inaequiplicata, Naticopsis inaequiplicata Klipstein, 1843 † - syn of: Lancedellopsis inaequiplicata (Klipstein, 1843 †) - (DELPHINULOPSIDAE) (FOSSIL)
- inaequiplicata, Pholadomya inaequiplicata Stanton, 1899 † - (PHOLADOMYIDAE) (FOSSIL)
- inaequiplicata, Lancedellopsis inaequiplicata (Klipstein, 1843 †) - (SCALANERITINIDAE) (FOSSIL)
- inaequiplicata, Protoma quadriplicata inaequiplicata A.E.M. Cossmann & M.A. Peyrot, 1922 † - (TURRITELLIDAE) (FOSSIL)
- inaequiplicata, Montia inaequiplicata (Briart & Cornet, 1887 †) - (VOLUTIDAE) (FOSSIL)
- inaequiradiata, Avicula inaequiradiata Schafhautl, 1851 † - syn of: Avicula contorta Portlock, 1843 † - (PTERIIDAE) (FOSSIL)
- inaequisculpta, Bathyarca inaequisculpta (E.A. Smith, 1885) - (ARCIDAE)
- inaequisculpta, Sitala inaequisculpta E.A. Smith, 1895 - syn of: Kaliella inaequisculpta (E.A. Smith, 1895) - (ARIOPHANTIDAE)
- inaequisculpta, Kaliella inaequisculpta (E.A. Smith, 1895) - (CHRONIDAE)
- inaequisculpta, Entalina inaequisculpta N.H. Ludbrook, 1954 - (ENTALINIDAE)
- inaequisculpta, Nuculana inaequisculpta (É. Lamy, 1906) - (NUCULANIDAE)
- inaequisculpta, Yoldia inaequisculpta É. Lamy, 1906 - syn of: Nuculana inaequisculpta (É. Lamy, 1906) - (YOLDIIDAE)
- inaequisculpta, Yoldiella inaequisculpta É. Lamy, 1906 - syn of: Nuculana inaequisculpta (É. Lamy, 1906) - (YOLDIIDAE)
- inaequisculptum, Cerithium inaequisculptum W. Kobelt, 1893 - syn of: Cerithidea scalariformis (T. Say, 1825) - (CERITHIIDAE)
- inaequisculptus, Pecten inaequisculptus N. Tiberi, 1855 - syn of: Parvamussium fenestratum (E. Forbes, 1844) - (PECTINIDAE)
- inaequisculptus, Parvamussium inaequisculptus N. Tiberi, 1855 - syn of: Parvamussium fenestratum (E. Forbes, 1844) - (PROPEAMUSSIIDAE)
- inaequiseptum, Diestoceras inaequiseptum (Portlock, 1843 †) - (DIESTOCERATIDAE) (FOSSIL)
- inaequiseptum, Phragmoceras inaequiseptum Portlock, 1843 † - syn of: Diestoceras inaequiseptum (Portlock, 1843 †) - (PHRAGMOCERATIDAE) (FOSSIL)
- inaequispinosum, Neaspidoceras inaequispinosum Jeannet, 1951 † - (ASPIDOCERATIDAE) (FOSSIL)
- inaequistriata, Clymenia inaequistriata G.G. Münster, 1832 † - syn of: Kosmoclymenia inaequistriata (G.G. Münster, 1832 †) - (CLYMENIIDAE) (FOSSIL)
- inaequistriata, Lamychaena inaequistriata F.P. Jousseaume in É. Lamy, 1923 - syn of: Lamychaena weinkauffi (R. Sturany, 1899) - (GASTROCHAENIDAE)
- inaequistriata, Helicina inaequistriata H.A. Pilsbry, 1900 - (HELICINIDAE)
- inaequistriata, Holopea inaequistriata E.F.R.K. Koken & J. Perner, 1925 † - (HOLOPEIDAE) (FOSSIL)
- inaequistriata, Kosmoclymenia inaequistriata (G.G. Münster, 1832 †) - (KOSMOCLYMENIIDAE) (FOSSIL)
- inaequistriata, Velata inaequistriata Futterer, 1897 † - syn of: Eopecten inaequistriatus Futterer, 1897 † - (PECTINIDAE) (FOSSIL)
- inaequistriata, Crassispira inaequistriata C.C. Li, 1930 - syn of: Crassispira maura (G.B. I Sowerby, 1834) - (PSEUDOMELATOMIDAE)
- inaequistriata, Pyrgiscilla inaequistriata E. Saurin, 1959 - syn of: Pyrgiscus inaequistriatus (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- inaequistriata, Macrochilina inaequistriata (Münster, 1841 †) - (SOLENISCIDAE) (FOSSIL)
- inaequistriata, Tellina inaequistriata E. Donovan, 1802 - (TELLINIDAE)
- inaequistriata, Melania inaequistriata Münster, 1841 † - syn of: Macrochilina inaequistriata (Münster, 1841 †) - (THIARIDAE) (FOSSIL)
- inaequistriata elliptica, Clymenia inaequistriata elliptica G.G. Münster, 1839 † - syn of: Clymenia laevigata (G.G. Münster, 1832 †) - (CLYMENIIDAE) (FOSSIL)
- inaequistriata mantaensis, Tellina inaequistriata mantaensis H.A. Pilsbry & A.A. Olsson, 1943 - (TELLINIDAE)
- inaequistriatum, Cyclonema inaequistriatum E.F.R.K. Koken & J. Perner, 1925 † - (PLATYCERATIDAE) (FOSSIL)
- inaequistriatus, Cryptoconus inaequistriatus (G.P. Deshayes, 1834 †) - (CONIDAE) (FOSSIL)
- inaequistriatus, Acrocoelites inaequistriatus (C.T. Simpson, 1855 †) - (MEGATEUTHIDIDAE) (FOSSIL)
- inaequistriatus, Eopecten inaequistriatus Futterer, 1897 † - (PECTINIDAE) (FOSSIL)
- inaequistriatus, Pecten inaequistriatus G.A. Goldfuss, 1838 † - syn of: Leptochondria albertii (G.A. Goldfuss, 1838 †) - (PECTINIDAE) (FOSSIL)
- inaequistriatus, Pyrgiscus inaequistriatus (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- inaequivalva, Anodontites inaequivalva (I. Lea, 1868) - (MYCETOPODIDAE)
- inaequivalva, Anodonta inaequivalva I. Lea, 1868 - syn of: Anodontites inaequivalva (I. Lea, 1868) - (UNIONIDAE)
- inaequivalve, Oxytoma inaequivalve J. de C. Sowerby, 1819 † - syn of: Oxytoma inequivalvis (J. de C. Sowerby, 1819 †) - (OXYTOMIDAE) (FOSSIL)
- inaequivalve, Periploma inaequivalve H.C.F. Schumacher, 1817 - (PERIPLOMATIDAE)
- inaequivalvis, Anadara inaequivalvis (J.G. Bruguière, 1789) - (ARCIDAE)
- inaequivalvis, Arca inaequivalvis J.G. Bruguière, 1789 - syn of: Anadara inaequivalvis (J.G. Bruguière, 1789) - (ARCIDAE)
- inaequivalvis, Scapharca inaequivalvis J.G. Bruguière, 1789 - syn of: Anadara inaequivalvis (J.G. Bruguière, 1789) - (ARCIDAE)
- inaequivalvis, Dreissena inaequivalvis G.P. Deshayes † - (DREISSENIDAE) (FOSSIL)
- inaequivalvis, Hyotissa inaequivalvis (G.B. Sowerby, 1871) - (GRYPHAEIDAE)
- inaequivalvis, Inaequiceramus inaequivalvis F. Schlüter, 1933 † - (INOCERAMIDAE) (FOSSIL)
- inaequivalvis, Inoceramus inaequivalvis F. Schlüter, 1877 † - (INOCERAMIDAE) (FOSSIL)
- inaequivalvis, Eomonotis inaequivalvis (H.G. Bronn, 1930 †) - (MONOTIDAE) (FOSSIL)
- inaequivalvis, Glabaris inaequivalvis I. Lea, 1868 - syn of: Anodontites inaequivalva (I. Lea, 1868) - (MYCETOPODIDAE)
- inaequivalvis, Mya inaequivalvis G. Montagu, 1803 - syn of: Corbula gibba (A.G. Olivi, 1792) - (MYIDAE)
- inaequivalvis, Ostrea inaequivalvis G.B. II Sowerby, 1871 - syn of: Parahyotissa numisma (J.B.P.A. Lamarck, 1819) - (OSTREIDAE)
- inaequivalvis, Pandora inaequivalvis (C. Linnaeus, 1758) - (PANDORIDAE)
- inaequivalvis, Argopecten inaequivalvis G.B. II Sowerby, 1842 - syn of: Haumea minuta (C. Linnaeus, 1758) - (PECTINIDAE)
- inaequivalvis, Periploma inaequivalvis H.C.F. Schumacher, 1817 - syn of: Periploma margaritaceum (J.B.P.A. Lamarck, 1801) - (PERIPLOMATIDAE)
- inaequivalvis, Solen inaequivalvis C. Linnaeus, 1758 - syn of: Pandora inaequivalvis (C. Linnaeus, 1758) - (SOLENIDAE)
- inaequivalvis, Tellina inaequivalvis (J.F. Gmelin, 1791) - (TELLINIDAE)
- inaequivalvis, Omala inaequivalvis H.C.F. Schumacher, 1817 - syn of: Tellina hyalina J.F. Gmelin, 1791 - (TELLINIDAE)
- inaequivalvis, Venus inaequivalvis D'Orbigny in R. de la Sagra, 1853 - syn of: Chioneryx pygmaea (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- inaequivalvis arboricola, Ostrea inaequivalvis arboricola P. Dautzenberg, 1929 - syn of: Booneostrea subucula (F.P. Jousseaume in É. Lamy, 1925) - (OSTREIDAE)
- inaequivalvis oblonga, Pandora inaequivalvis oblonga R.A. Philippi, 1843 - (PANDORIDAE)
- inaequivalvis obtusa, Pandora inaequivalvis obtusa J.G. Jeffreys, 1865 - syn of: Pandora pinna (G. Montagu, 1803) - (PANDORIDAE)
- inaequivalvis sicula, Pandora inaequivalvis sicula É. Lamy, 1934 - syn of: Pandora sicula É. Lamy, 1934 - (PANDORIDAE)
- inaequivalvis tenuis, Pandora inaequivalvis tenuis J.G. Jeffreys, 1865 - syn of: Pandora albida (P.F. Röding, 1798) - (PANDORIDAE)
- inaffecta, Ectogrammysia inaffecta Hoare, 1993 † - (GRAMMYSIIDAE) (FOSSIL)
- inaguense, Cerion inaguense W.J. Clench, 1933 - (CERIONIDAE)
- inaguensis, Hojeda inaguensis (C.D. Weinland, 1880) - (SAGDIDAE)
- inaicus, Discoptychites inaicus (Diener, 1915 †) - (STURIIDAE) (FOSSIL)
- Inaigymnites, Genus Inaigymnites Bando, 1967 † (GYMNITIDAE) (FOSSIL)
- inalbechi, Leptoconchus inalbechi E. Gittenberger & A. Gittenberger, 2011 - (MURICIDAE)
- inambarisensis, Megalobulimus inambarisensis Borda & R. Ramírez, 2016 - (MEGALOBULIMIDAE)
- inambitiosa, Xymenella inambitiosa J. Marwick, 1929 † - (MURICIDAE) (FOSSIL)
- inamictus, Zenospira inamictus (Whidborne, 1892 †) - (CHUCHLINIDAE) (FOSSIL)
- inamictus, Turbo inamictus Whidborne, 1892 † - syn of: Zenospira inamictus (Whidborne, 1892 †) - (TURBINIDAE) (FOSSIL)
- inamoenum, Gonatocyrtoceras inamoenum P.A. Zhuravleva, 1972 † - syn of: Gonatocyrtoceras nostras P.A. Zhuravleva, 1972 † - (ACLEISTOCERATIDAE) (FOSSIL)
- inamuragasakiensis, Cingulina inamuragasakiensis S. Nomura, 1938 - (PYRAMIDELLIDAE)
- inanga, Meridiopyrgus inanga M. Haase, 2008 - (TATEIDAE)
- inangulata, Daphnella inangulata B.Q. Li & X.Z. Li, 2014 - (RAPHITOMIDAE)
- inanis, Clausilia inanis A.R.J.B. Bavay & P. Dautzenberg, 1909 - (CLAUSILIIDAE)
- inanis, Pseudolimea inanis J. Marwick, 1953 † - (LIMIDAE) (FOSSIL)
- inanis, Tinalucina inanis (B. Prashad, 1932) - (LUCINIDAE)
- inanis, Abra inanis B. Prashad, 1932 - (SEMELIDAE)
- inappendiculatum, Pisidium inappendiculatum C.M. Steenberg, 1917 - syn of: Pisidium henslowanum (R. Sheppard, 1825) - (SPHAERIIDAE)
- inaquosum, Bostryx inaquosum A.S.H. Breure, 1978 - (BULIMULIDAE)
- inarata, Turricula inarata (J. de C. Sowerby, 1850 †) - (CLAVATULIDAE) (FOSSIL)
- inarata, Cucullaea inarata Finlay & J. Marwick, 1937 † - (CUCULLAEIDAE) (FOSSIL)
- inariensis, Gymnodoris inariensis I. Hamatani & D. Osumi, 2004 - (GYMNODORIDIDAE)
- inaspecta, Astarte inaspecta M. Glibert, 1936 - (ASTARTIDAE)
- inaspecta, Pycnodonte inaspecta G.P. Deshayes, 1858 † - (GRYPHAEIDAE) (FOSSIL)
- inaspecta, Conomitra inaspecta G.P. Deshayes, 1865 † - (VOLUTOMITRIDAE) (FOSSIL)
- inaspectus, Microbeliscus inaspectus (A. Fuchs, 1870 †) - (HYDROBIIDAE) (FOSSIL)
- inaudax, Leda inaudax E.A. Smith, 1885 - syn of: Nuculana solida (W.H. Dall, 1881) - (NUCULANIDAE)
- inaudax, Yoldiella inaudax E.A. Smith, 1885 - syn of: Nuculana solida (W.H. Dall, 1881) - (YOLDIIDAE)
- inaudita, Strobiligera inaudita (E. Rolán & H.G. Lee, 2008) - (TRIPHORIDAE)
- inaudita, Triphora inaudita E. Rolán & H.G. Lee, 2008 - syn of: Strobiligera inaudita (E. Rolán & H.G. Lee, 2008) - (TRIPHORIDAE)
- inaudita, Pleurotoma inaudita Bose, 1906 † - (TURRIDAE) (FOSSIL)
- inaudita, Gongylostomella inaudita C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- inaurata, Mazzalina inaurata (T.A. Conrad, 1833 †) - (FASCIOLARIIDAE) (FOSSIL)
- inauris, Albinaria inauris (O. Böttger, 1896) - (CLAUSILIIDAE)
- inauris costicollis, Albinaria inauris costicollis H. Nordsieck, 1993 - (CLAUSILIIDAE)
- inauris ietswaarti, Albinaria inauris ietswaarti E. Gittenberger & H.P.M.G. Menkhorst, 1992 - (CLAUSILIIDAE)
- inauris syedra, Albinaria inauris syedra H. Nordsieck, 2004 - (CLAUSILIIDAE)
- inausum, Kadaroceras inausum P.A. Zhuravleva, 1972 † - syn of: Lysagoroceras subfusiforme (Münster, 1840 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- inazawai, Alexania inazawai (J.T. Kuroda, 1943) - (EPITONIIDAE)
- inbana, Sinuatodostomia inbana (S. Nomura, 1938) - (PYRAMIDELLIDAE)
- Inbiocystiscus, Genus Inbiocystiscus J.A. Ortea & J. Espinosa, 2001 (CYSTISCIDAE)
- inbiotica, Trapania inbiotica Y. Camacho-García & J.A. Ortea, 2000 - (GONIODORIDIDAE)
- inbricata, Ocinebrina inbricata (G.B. Brocchi, 1814 †) - (MURICIDAE) (FOSSIL)
- inca, Aplysia inca D'Orbigny, 1837 - (APLYSIIDAE)
- inca, Gemophos inca (A.V.M.D. D'Orbigny, 1839) - (BUCCINIDAE)
- inca, Drymaeus inca M. Smith, 1943 - (BULIMULIDAE)
- inca, Newboldius inca H.A. Pilsbry, 1932 - (BULIMULIDAE)
- inca, Hoplitoides inca Benavides-Caceres, 1956 † - syn of: Wrightoceras munieri (Pervinquiére, 1907 †) - (COILOPOCERATIDAE) (FOSSIL)
- inca, Cylichna inca (W.H. Dall, 1908) - (CYLICHNIDAE)
- inca, Eulima inca (P. Bartsch, 1926) - (EULIMIDAE)
- inca, Phidiana inca D'Orbigny, 1837 - syn of: Phidiana lottini (R.P. Lesson, 1831) - (FACELINIDAE)
- inca, Helicina inca H.B. Preston, 1914 - (HELICINIDAE)
- inca, Lucina inca A.A. Olsson, 1931 † - (LUCINIDAE) (FOSSIL)
- inca, Thaumastus inca (A.V.M.D. D'Orbigny, 1835) - (MEGASPIRIDAE)
- inca, Mitra inca D'Orbigny, 1841 - (MITRIDAE)
- inca, Lithophaga inca D'Orbigny, 1846 - syn of: Solamen attenuata (G.P. Deshayes, 1836) - (MYTILIDAE)
- inca, Aperostoma inca (A.V.M.D. D'Orbigny, 1835) - (NEOCYCLOTIDAE)
- inca, Olivancillaria inca A.A. Olsson, 1930 † - (OLIVIDAE) (FOSSIL)
- inca, Pecten inca D'Orbigny, 1846 - syn of: Argopecten ventricosus inca (A.V.M.D. D'Orbigny, 1846) - (PECTINIDAE)
- inca, Argopecten ventricosus inca (A.V.M.D. D'Orbigny, 1846) - (PECTINIDAE)
- inca, Turbonilla inca P. Bartsch, 1926 - (PYRAMIDELLIDAE)
- inca, Rissoina inca D'Orbigny, 1840 - (RISSOINIDAE)
- inca, Turritella inca Grzybowski, 1899 † - (TURRITELLIDAE) (FOSSIL)
- inca, Artena inca A.A. Olsson, 1939 † - (VENERIDAE) (FOSSIL)
- inca, Macrocallista inca A.A. Olsson, 1928 † - (VENERIDAE) (FOSSIL)
- inca, Chiraluta inca A.A. Olsson, 1931 † - (VOLUTIDAE) (FOSSIL)
- Incacardium, Genus Incacardium Olsson, 1944 † (CARDIIDA (UNASSIGNED)) (FOSSIL)
- incae, Nicaniella incae (Jaworski, 1922 †) - (ASTARTIDAE) (FOSSIL)
- Incaglaia, Genus Incaglaia H.A. Pilsbry, 1949 (CLAUSILIIDAE)
- incala, Yoldiella incala J.A. Allen, A. Sanders & G. Hannah, 1995 - (YOLDIIDAE)
- incali, Dondersia incali (A.H. Scheltema, 1999) - (DONDERSIIDAE)
- incallidum, Pararhiphaeoceras incallidum Ruzhentsev & Shimanskiy, 1954 † - (RHIPHAEOCERATIDAE) (FOSSIL)
- Incania, Genus Incania W. Polinski, 1922 (CLAUSILIIDAE)
- incanoides, Cerion incanoides H.A. Pilsbry & E.G. Vanatta, 1895 - syn of: Cerion regina H.A. Pilsbry & E.G. Vanatta, 1895 - (CERIONIDAE)
- Incanopsis, Genus Incanopsis Olsson, 1944 † (ARCIDA (UNASSIGNED)) (FOSSIL)
- incantata, Veprichlamys incantata (L.G. Hertlein, 1972) - (PECTINIDAE)
- incantata, Miralda incantata L.G. Hertlein & Strong, 1939 - (PYRAMIDELLIDAE)
- incantatum, Actinoceras incantatum Flower, 1957 † - (ACTINOCERATIDAE) (FOSSIL)
- incantatus, Peristichia incantatus (L.G. Hertlein & A.M. Strong, 1939) - (PYRAMIDELLIDAE)
- incanum, Cerion incanum W.G. Binney, 1851 - (CERIONIDAE)
- incanum fasciatum, Cerion incanum fasciatum W.G. Binney, 1851 - (CERIONIDAE)
- incanum saccharimeta, Cerion incanum saccharimeta H.A. Pilsbry & E.G. Vanatta, 1899 - (CERIONIDAE)
- incanum vaccinum, Cerion incanum vaccinum H.A. Pilsbry, 1902 - (CERIONIDAE)
- incanus, Chiton incanus A.A. Gould, 1846 - syn of: Liolophura gaimardi (H.M.D. de Blainville, 1825) - (CHITONIDAE)
- incara, Wayampia incara (A.J. Crawford, 1939) - (SCOLODONTIDAE)
- incarceratum, Conocardium incarceratum A.H. Clarke, 1907 † - (CONOCARDIIDAE) (FOSSIL)
- incarinata, Oriostoma incarinata Foerste, 1893 † - (ORIOSTOMATIDAE) (FOSSIL)
- incarinatus, Poleumita incarinatus (Foerste, 1893 †) - (EUOMPHALIDAE) (FOSSIL)
- incarinatus, Euphemites incarinatus Easton, 1943 † - (EUPHEMITIDAE) (FOSSIL)
- incarna, Cypraea incarna G.R. Sulliotti, 1924 - syn of: Cypraea tigris C. Linnaeus, 1758 - (CYPRAEIDAE)
- incarnata, Pollia incarnata (G.P. Deshayes in E.S.J.L. de Laborde & M. Linant, 1834) - (BUCCINIDAE)
- incarnata, Leptothyra incarnata H.A. Pilsbry, 1903 - syn of: Homalopoma incarnatum (H.A. Pilsbry, 1903) - (COLLONIIDAE)
- incarnata, Leptadrillia incarnata P.J. Fallon, 2016 - (DRILLIIDAE)
- incarnata, Peristernia incarnata M.A. Snyder, 2000 - syn of: Peristernia reincarnata M.A. Snyder, 2000 - (FASCIOLARIIDAE)
- incarnata, Amblychilepas incarnata C.F.F. von Krauss, 1848 - syn of: Dendrofissurella scutellum hiantula (J.B.P.A. Lamarck, 1822) - (FISSURELLIDAE)
- incarnata, Helix incarnata O.F. Müller, 1774 - syn of: Perforatella incarnata (O.F. Müller, 1774) - (HELICIDAE)
- incarnata, Perforatella incarnata (O.F. Müller, 1774) - (HYGROMIIDAE)
- incarnata, Littorina incarnata R.A. Philippi, 1846 - syn of: Littorina saxatilis (A.G. Olivi, 1792) - (LITTORINIDAE)
- incarnata, Mactra incarnata L.A. Reeve, 1854 - (MACTRIDAE)
- incarnata, Mitra incarnata L.A. Reeve, 1845 - syn of: Mitra rosacea incarnata L.A. Reeve, 1845 - (MITRIDAE)
- incarnata, Mitra rosacea incarnata L.A. Reeve, 1845 - (MITRIDAE)
- incarnata, Purpura incarnata P.F. Röding, 1798 - syn of: Chicoreus ramosus (C. Linnaeus, 1758) - (MURICIDAE)
- incarnata, Ostrea incarnata J.F. Gmelin, 1791 - syn of: Mimachlamys varia (C. Linnaeus, 1758) - (OSTREIDAE)
- incarnata, Chlamys incarnata L.G. Hertlein, 1972 - (PECTINIDAE)
- incarnata, Mimachlamys incarnata J.F. Gmelin, 1791 - syn of: Mimachlamys varia (C. Linnaeus, 1758) - (PECTINIDAE)
- incarnata, Gari incarnata V. Bertin, 1880 - syn of: Gari fervensis (J.F. Gmelin, 1791) - (PSAMMOBIIDAE)
- incarnata, Bosemprella incarnata (C. Linnaeus, 1758) - (TELLINIDAE)
- incarnata, Tellina incarnata S.C.T. Hanley, 1844 - syn of: Clathrotellina carnicolor (S.C.T. Hanley, 1846) - (TELLINIDAE)
- incarnata, Coralliophaga incarnata L.A. Reeve, 1843 - syn of: Coralliophaga decussata (L.A. Reeve, 1843) - (TRAPEZIDAE)
- incarnata, Trochus incarnata H.A. Pilsbry, 1903 - (TROCHIDAE)
- incarnata, Turbinella incarnata G.P. Deshayes, 1830 - syn of: Pollia incarnata (G.P. Deshayes in E.S.J.L. de Laborde & M. Linant, 1834) - (TURBINELLIDAE)
- incarnata, Grandidieria burtoni incarnata J.R. Bourguignat, 1885 - (UNIONIDAE)
- incarnata, Voluta incarnata P.F. Röding, 1798 - syn of: Voluta musica C. Linnaeus, 1758 - (VOLUTIDAE)
- incarnata amatus, Perforatella incarnata amatus (G. Stabile, 1859) - (HYGROMIIDAE)
- incarnata elegans, Pollia incarnata elegans (R.W. Dunker) - (BUCCINIDAE)
- incarnata major, Tellina incarnata major M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1886 - syn of: Bosemprella incarnata (C. Linnaeus, 1758) - (TELLINIDAE)
- incarnata pallida, Tellina incarnata pallida P.M. Pallary, 1900 - syn of: Bosemprella incarnata (C. Linnaeus, 1758) - (TELLINIDAE)
- incarnata panormitana, Tellina incarnata panormitana A. De Gregorio, 1885 - syn of: Bosemprella incarnata (C. Linnaeus, 1758) - (TELLINIDAE)
- incarnata papuensis, Engina incarnata papuensis C.M. Tapparone-Canefri, 1879 - syn of: Engina papuensis C.M. Tapparone-Canefri, 1879 - (BUCCINIDAE)
- incarnata squalidus, Bosemprella incarnata squalidus (R. Pulteney, 1799) - (TELLINIDAE)
- incarnata stazina, Tellina incarnata stazina A. De Gregorio, 1885 - syn of: Bosemprella incarnata (C. Linnaeus, 1758) - (TELLINIDAE)
- incarnata welebitanus, Perforatella incarnata welebitanus L. Pfeiffer, 1847 - (HYGROMIIDAE)
- incarnatum, Vepricardium incarnatum (L.A. Reeve, 1844) - (CARDIIDAE)
- incarnatum, Homalopoma incarnatum (H.A. Pilsbry, 1903) - (COLLONIIDAE)
- incarnatus, Bulimus incarnatus L. Pfeiffer, 1855 - syn of: Mesembrinus granadensis (L. Pfeiffer, 1848) - (BULIMULIDAE)
- incarnatus, Chiton incarnatus L.A. Reeve, 1848 - syn of: Tonicella rubra (C. Linnaeus, 1767) - (CHITONIDAE)
- incarnatus, Conus incarnatus L.A. Reeve, 1843 - syn of: Rhizoconus hyaena (C.H. Hwass, 1792) - (CONIDAE)
- incarnatus, Pachybathron incarnatus (L.C. Kiener, 1840) - (CYSTISCIDAE)
- incarnatus, Donax incarnatus J.F. Gmelin, 1791 - (DONACIDAE)
- incarnatus, Tonicella incarnatus L.A. Reeve, 1848 - syn of: Tonicella rubra (C. Linnaeus, 1767) - (MOPALIIDAE)
- incarnum, Thaumastus incarnum H.A. Pilsbry, 1944 - (MEGASPIRIDAE)
- incarum, Parabalea incarum H.A. Pilsbry, 1926 - (CLAUSILIIDAE)
- incarum, Megalobulimus incarum H.A. Pilsbry, 1944 - syn of: Paeniscutalus crenellus (R.A. Philippi, 1867) - (MEGALOBULIMIDAE)
- incarum, Anodontites trigona incarum (R.A. Philippi, 1869) - (MYCETOPODIDAE)
- incarum, Psadara incarum (R.A. Philippi, 1869) - (PLEURODONTIDAE)
- incarum, Microborus incarum H.A. Pilsbry, 1944 - syn of: Paeniscutalus crenellus (R.A. Philippi, 1867) - (STROPHOCHEILIDAE)
- incarum, Anodonta incarum R.A. Philippi, 1869 - syn of: Anodontites trigona incarum (R.A. Philippi, 1869) - (UNIONIDAE)
- incarum breurei, Parabalea incarum breurei (F.E. Loosjes & F.E. Loosjes, 1984) - (CLAUSILIIDAE)
- Incatella, Genus Incatella DeVries , 2007 † (TURRITELLIDAE) (FOSSIL)
- incautum, Pseudocenoceras incautum Shimansky, 1975 † - (NAUTILIDAE) (FOSSIL)
- incavata, Perna incavata A.E.M. Cossmann, 1904 † - (MYTILIDAE) (FOSSIL)
- incei, Figuladra incei (L. Pfeiffer, 1846) - (CAMAENIDAE)
- incei, Sphaerospira incei L. Pfeiffer, 1846 - syn of: Figuladra incei (L. Pfeiffer, 1846) - (CAMAENIDAE)
- incei, Doris incei J.E. Gray in M.E. Gray, 1850 - syn of: Halgerda willeyi C.N.E. Eliot, 1904 - (DORIDIDAE)
- incei, Conuber incei (R.A. Philippi, 1853) - (NATICIDAE)
- incei, Natica incei R.A. Philippi, 1853 - syn of: Conuber incei (R.A. Philippi, 1853) - (NATICIDAE)
- incei, Polinices incei R.A. Philippi, 1853 - syn of: Conuber incei (R.A. Philippi, 1853) - (NATICIDAE)
- incei, Aspidopholas incei (G.B. Sowerby, 1849) - (PHOLADIDAE)
- incei curtisiana, Figuladra incei curtisiana (L. Pfeiffer, 1864) - (CAMAENIDAE)
- incei lessoni, Figuladra incei lessoni (L. Pfeiffer, 1846) - (CAMAENIDAE)
- incelebratum, Plagioceras incelebratum P.A. Zhuravleva, 1972 † - syn of: Chrysoceras tumidum (P.A. Zhuravleva, 1972 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- incelebratus, Inoceramus incelebratus Pergament, 1966 † - (INOCERAMIDAE) (FOSSIL)
- incella, Octopus incella I. Kaneko & T. Kubodera, 2007 - (OCTOPODIDAE)
- inceptor, Hormotoma inceptor Longstaff, 1909 † - (MURCHISONIIDAE) (FOSSIL)
- inceptum, Raymondiceras inceptum J.D. Petersen, 1975 † - (CHEILOCERATIDAE) (FOSSIL)
- inceptum, Conocardium inceptum J.W. Hall, 1859 † - (CONOCARDIIDAE) (FOSSIL)
- inceratus, Lamellitrochus inceratus J.F. Quinn, 1991 - (SOLARIELLIDAE)
- inceri, Mactra inceri E.J. Petuch, 1998 - syn of: Trinitasia iheringi (W.H. Dall, 1897) - (MACTRIDAE)
- incerta, Celticola pilsbryi incerta C.M. Cooke & Y. Kondo, 1960 - (ACHATINELLIDAE)
- incerta, Phyllaplysia incerta L.S.R. Bergh, 1902 - (APLYSIIDAE)
- incerta, Arca incerta K. Martin, 1883 † - (ARCIDAE) (FOSSIL)
- incerta, Mimarcaria incerta (E.A. Smith, 1899) - (ARCIDAE)
- incerta, Arctica incerta (B. Wade, 1926 †) - (ARCTICIDAE) (FOSSIL)
- incerta, Agardhia incerta A.V. Grossu, 1986 - (ARGNIDAE)
- incerta, Astarte incerta Woods, 1850 † - (ASTARTIDAE) (FOSSIL)
- incerta, Cordieria incerta G.P. Deshayes, 1865 - (BORSONIIDAE)
- incerta, Pseudobuliminus incerta (L. Pfeiffer, 1865) - (BRADYBAENIDAE)
- incerta, Zachrysia incerta (A.E.J. Férussac, 1823) - (CAMAENIDAE)
- incerta, Westraltrachia incerta T. Iredale, 1939 - syn of: Westraltrachia alterna T. Iredale, 1939 - (CAMAENIDAE)
- incerta, Cardita incerta S. Clessin, 1888 - syn of: Carditamera affinis (G.B. I Sowerby, 1833) - (CARDITIDAE)
- incerta, Seila incerta A. Cecalupo & I. Perugia, 2013 - (CERITHIOPSIDAE)
- incerta, Siciliaria incerta (H.C. Küster, 1861) - (CLAUSILIIDAE)
- incerta, Hypnophila incerta (J.R. Bourguignat, 1858) - (COCHLICOPIDAE)
- incerta, Collonia incerta (E.A. Smith, 1890) - (COLLONIIDAE)
- incerta, Zafrona incerta (R.E.C. Stearns, 1892) - (COLUMBELLIDAE)
- incerta, Nitidella incerta R.E.C. Stearns, 1892 - syn of: Zafrona incerta (R.E.C. Stearns, 1892) - (COLUMBELLIDAE)
- incerta, Crassimarginata incerta (Spitz, 1907 †) - (CRASSIMARGINATIDAE) (FOSSIL)
- incerta, Platydoris incerta C.N.E. Eliot, 1903 - (DISCODORIDIDAE)
- incerta, Donax incerta G.P. Deshayes, 1857 † - (DONACIDAE) (FOSSIL)
- incerta, Archidoris incerta L.S.R. Bergh, 1898 - syn of: Doris fontainii (A.V.M.D. D'Orbigny, 1837) - (DORIDIDAE)
- incerta, Doris incerta L.S.R. Bergh, 1898 - syn of: Doris fontainii (A.V.M.D. D'Orbigny, 1837) - (DORIDIDAE)
- incerta, Drillia incerta (E.A. Smith, 1877) - (DRILLIIDAE)
- incerta, Paramegadenus incerta A. Warén, 1980 - (EULIMIDAE)
- incerta, Eulima incerta H.E. Anton, 1838 - (EULIMIDAE)
- incerta, Eulima incerta R.B. Newton, 1891 - (EULIMIDAE)
- incerta, Peristernia incerta M.M. Schepman, 1911 - (FASCIOLARIIDAE)
- incerta, Diodora incerta G.P. Deshayes, 1861 † - (FISSURELLIDAE) (FOSSIL)
- incerta, Scintilla incerta (C.A. Récluz, 1851) - (GALEOMMATIDAE)
- incerta, Harpagodes incerta Sowerby, 1823 † - syn of: Harpagodes nodosus (J. de C. Sowerby, 1823 †) - (HARPAGODIDAE) (FOSSIL)
- incerta, Parakaliella incerta (A. Adams, 1868) - (HELICARIONIDAE)
- incerta, Helix incerta A.E.J. Férussac, 1823 - syn of: Zachrysia incerta (A.E.J. Férussac, 1823) - (HELICIDAE)
- incerta, Helix incerta G.B. Adami, 1886 - syn of: Cingulifera cingulatum baldense (E.A. Rossmässler, 1839) - (HELICIDAE)
- incerta, Mauidrillia incerta A.G. Beu, 1970 † - (HORAICLAVIDAE) (FOSSIL)
- incerta, Turricaspia incerta Roshka, 1973 † - (HYDROBIIDAE) (FOSSIL)
- incerta, Socenia incerta (Š. Brusina, 1892 †) - (HYDROBIIDAE) (FOSSIL)
- incerta, Trochispira incerta Pan, 1980 † - (HYDROBIIDAE) (FOSSIL)
- incerta, Munditia incerta (J.E. Tenison-Woods, 1876) - (LIOTIIDAE)
- incerta, Alaba incerta (A.V.M.D. D'Orbigny, 1842) - (LITIOPIDAE)
- incerta, Holopella incerta Spitz, 1907 † - syn of: Crassimarginata incerta (Spitz, 1907 †) - (LOXONEMATIDAE) (FOSSIL)
- incerta, Mactra incerta E.A. Smith, 1885 - (MACTRIDAE)
- incerta, Mangelia incerta G.B. Pritchard & J.H. Gatliff, 1902 - syn of: Mitromorpha incerta (G.B. Pritchard & J.H. Gatliff, 1902) - (MANGELIIDAE)
- incerta, Marginella incerta W.L. May, 1920 - syn of: Cystiscus incertus (W.L. May, 1920) - (MARGINELLIDAE)
- incerta, Melanopsis incerta A.E.J. Férussac, 1823 † - (MELANOPSIDAE) (FOSSIL)
- incerta, Mitromorpha incerta (G.B. Pritchard & J.H. Gatliff, 1902) - (MITROMORPHIDAE)
- incerta, Coralliophila incerta F. Toula, 1911 - syn of: Urosalpinx dalli protera W.P. Woodring, 1964 - (MURICIDAE)
- incerta, Nassaria incerta (L. C. King, 1933 †) - (NASSARIIDAE) (FOSSIL)
- incerta, Polinella incerta (J. Marwick, 1924 †) - (NATICIDAE) (FOSSIL)
- incerta, Natica incerta P.F. Röding, 1798 - (NATICIDAE)
- incerta, Nerita incerta (G. von dem Busch in R.A. Philippi, 1844) - (NERITIDAE)
- incerta, Amphinerita incerta G. von dem Busch in R.A. Philippi, 1844 - syn of: Nerita incerta (G. von dem Busch in R.A. Philippi, 1844) - (NERITIDAE)
- incerta, Oleacina incerta (L.A. Reeve in L. Pfeiffer, 1866) - (OLEACINIDAE)
- incerta, Palaeacmaea incerta J. Perner, 1903 † - syn of: Siluracmaea ovoidea (J. Perner, 1903 †) - (PALAEACMAEIDAE) (FOSSIL)
- incerta, Humphreyia incerta B.C. Cotton, 1961 - syn of: Kendrickiana veitchi (B.J. Smith, 1971) - (PENICILLIDAE)
- incerta, Phasianella incerta E. Forbes, 1846 - (PHASIANELLIDAE)
- incerta, Annularisca incerta C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- incerta, Pachydrobia incerta (P. Temcharoen, 1971) - (POMATIOPSIDAE)
- incerta, Soletellina incerta L.A. Reeve, 1857 - syn of: Hiatula alba (J.B.P.A. Lamarck, 1818) - (PSAMMOBIIDAE)
- incerta, Inquisitor incerta E.A. Smith, 1877 - syn of: Drillia incerta (E.A. Smith, 1877) - (PSEUDOMELATOMIDAE)
- incerta, Khetella incerta (A.V.M.D. D'Orbigny, 1845 †) - (PSEUDOTRITONIIDAE) (FOSSIL)
- incerta, Khetella incerta Gerasimov, 1992 † - syn of: Maturifusus mosquensis A.V. Guzhov, 2004 † - (PSEUDOTRITONIIDAE) (FOSSIL)
- incerta, Spiralinella incerta (K.O. Milaschewitsch, 1916) - (PYRAMIDELLIDAE)
- incerta, Ranella incerta O.G. Michelotti, 1847 - syn of: Ranella olearium (C. Linnaeus, 1758) - (RANELLIDAE)
- incerta, Rissoa incerta G.P. Deshayes, 1861 † - (RISSOIDAE) (FOSSIL)
- incerta, Rissoina incerta S.M. Souverbie, 1872 - (RISSOINIDAE)
- incerta, Sepia incerta E.A. Smith, 1916 - (SEPIIDAE)
- incerta, Siphonaria incerta G.P. Deshayes, 1863 - (SIPHONARIIDAE)
- incerta, Pterocera incerta d'Orbigny, 1843 † - syn of: Harpagodes nodosus (J. de C. Sowerby, 1823 †) - (STROMBIDAE) (FOSSIL)
- incerta, Trachybembix incerta Wang, 1982 † - (STUORELLIDAE) (FOSSIL)
- incerta, Tellina incerta G.P. Deshayes, 1855 - (TELLINIDAE)
- incerta, Thracia incerta Thurmann, 1836 † - (THRACIIDAE) (FOSSIL)
- incerta, Metaxia incerta F. Fernandes & E. Rolán, 1988 - (TRIPHORIDAE)
- incerta, Tritonia incerta L.S.R. Bergh, 1904 - (TRITONIIDAE)
- incerta, Trivia incerta H.I. Tucker & D. Wilson, 1932 - syn of: Pusula pediculus (C. Linnaeus, 1758) - (TRIVIIDAE)
- incerta, Monilea incerta T. Iredale, 1912 - (TROCHIDAE)
- incerta, Pleurotoma incerta E.A. Smith, 1877 - syn of: Drillia incerta (E.A. Smith, 1877) - (TURRIDAE)
- incerta, Diplodonta incerta d'Archiac, 1850 † - (UNGULINIDAE) (FOSSIL)
- incerta, Diplodonta incerta E.A. Smith, 1907 - syn of: Cyamiomactra laminifera (É. Lamy, 1906) - (UNGULINIDAE)
- incerta, Poecilocoptis incerta (R. Arango, 1881) - (UROCOPTIDAE)
- incerta, Bukobia incerta (C. Pollonera, 1906) - (UROCYCLIDAE)
- incerta, Valvata incerta T.C. Yen, 1947 † - (VALVATIDAE) (FOSSIL)
- incerta, Lamellaria incerta L.S.R. Bergh, 1898 - syn of: Lamellaria perspicua (C. Linnaeus, 1758) - (VELUTINIDAE)
- incerta, Marcia incerta (Dufour, 1881 †) - (VENERIDAE) (FOSSIL)
- incerta, Negulus incerta C.M. Cooke & H.A. Pilsbry, 1920 - (VERTIGINIDAE)
- incerta, Siluracmaea incerta J. Perner, 1903 † - syn of: Siluracmaea ovoidea (J. Perner, 1903 †) - (YOCHELSONIIDAE) (FOSSIL)
- incerta, Retinelloides incerta (J.P.R. Draparnaud, 1805) - (ZONITIDAE)
- incerta narica, Diplodonta incerta narica E.W. Vredenburg, 1928 - (UNGULINIDAE)
- incertae, Anatipopecten incertae (Tucker-Rowland 1938) † - (PECTINIDAE) (FOSSIL)
- incertae, Sigmesalia incertae (G.P. Deshayes, 1832 †) - (TURRITELLIDAE) (FOSSIL)
- incertae, Thylacodes incertae J.B.P.A. Lamarck, 1818 - syn of: Thylacodes plicaria (J.B.P.A. Lamarck, 1818) - (VERMETIDAE)
- Incerthydrobia, syn of: Genus Bithynia W.E. Leach, 1818 (BITHYNIIDAE)
- Incerticyclus, Genus Incerticyclus J.P.E. Morrison, 1955 (NEOCYCLOTIDAE)
- Incertihydrobia, Genus Incertihydrobia B. Verdcourt, 1958 (BITHYNIIDAE)
- incertis, Proconus incertis Webers & al., 1992 † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- incertis, Janeia incertis Dickins, 1999 † - (SOLEMYIDAE) (FOSSIL)
- incertum, Buccinum incertum A.V.M.D. D'Orbigny, 1845 † - syn of: Khetella incerta (A.V.M.D. D'Orbigny, 1845 †) - (BUCCINIDAE) (FOSSIL)
- incertum, Buccinum incertum Glazunova, 1973 † - syn of: Khetella glasunovi A.V. Guzhov, 2004 † - (BUCCINIDAE) (FOSSIL)
- incertum, Calliostoma incertum (L.A. Reeve, 1863) - (CALLIOSTOMATIDAE)
- incertum, Dacosta incertum J.C. Chenu, 1842 - syn of: Dacosta australis (G.B. I Sowerby, 1829) - (CLAVAGELLIDAE)
- incertum, Reynesocoeloceras incertum (Fucini, 1905 †) - (DACTYLIOCERATIDAE) (FOSSIL)
- incertum, Dentalium incertum G.P. Deshayes, 1825 † - (DENTALIIDAE) (FOSSIL)
- incertum, Goniatites incertum d'Archiac & de Verneuil, 1842 † - syn of: Triainoceras incertus (d'Archiac & de Verneuil, 1842 †) - (GONIATITIDAE) (FOSSIL)
- incertum, Anaklinoceras incertum Cobban, Kennedy & Scott, 2000 † - (NOSTOCERATIDAE) (FOSSIL)
- incertum, Brechites incertum J.C. Chenu, 1843 - syn of: Brechites australis J.C. Chenu, 1843 - (PENICILLIDAE)
- incertum, Phragmoceras incertum Hedstrom, 1917 † - (PHRAGMOCERATIDAE) (FOSSIL)
- incertum, Dnestroceras incertum P.A. Zhuravleva, 1961 † - syn of: Dnestroceras podolicum (Siemiradzki, 1906 †) - (PSEUDORTHOCERATIDAE) (FOSSIL)
- incertum, Paralegoceras incertum Böse, 1919 † - syn of: Emilites incertus (Böse, 1919 †) - (SCHISTOCERATIDAE) (FOSSIL)
- incertum, Pisidium incertum N.A.J. Normand, 1854 - syn of: Pisidium nitidum L. Jenyns, 1832 - (SPHAERIIDAE)
- incertum, Teinostoma incertum H.A. Pilsbry & J.T.L. McGinty, 1945 - (TORNIDAE)
- incertum, Unicardiopsis incertum B. Phillips † - (UNICARDIOPSIDAE) (FOSSIL)
- incertus, Emilites incertus (Böse, 1919 †) - (ADRIANITIDAE) (FOSSIL)
- incertus, Plummerites incertus Böse, 1919 † - syn of: Emilites incertus (Böse, 1919 †) - (ADRIANITIDAE) (FOSSIL)
- incertus, Bellerophon incertus Loczy, 1898 † - (BELLEROPHONTIDAE) (FOSSIL)
- incertus, Pseudobuliminus meiacoshimensis incertus (L. Pfeiffer, 1865) - (BRADYBAENIDAE)
- incertus, Sinutor incertus L.A. Reeve, 1863 - syn of: Calliostoma incertum (L.A. Reeve, 1863) - (CALLIOSTOMATIDAE)
- incertus, Tibatrochus incertus (M.M. Schepman, 1908) - (CHILODONTIDAE)
- incertus, Sinuitopsis incertus J. Perner, 1903 † - syn of: Sinuitopsis neglecta transgrediens J. Perner, 1903 † - (CYRTOLITIDAE) (FOSSIL)
- incertus, Cystiscus incertus (W.L. May, 1920) - (CYSTISCIDAE)
- incertus, Streptochetus incertus (G.P. Deshayes, 1835 †) - (FASCIOLARIIDAE) (FOSSIL)
- incertus, Goniatites incertus d'Archiac & de Verneuil, 1842 † - syn of: Triainoceras incertus (d'Archiac & de Verneuil, 1842 †) - (GONIATITIDAE) (FOSSIL)
- incertus, Securiconus incertus Bokova, 1985 † - (HELCIONELLIDAE) (FOSSIL)
- incertus, Murex incertus G.W. Nowell-Usticke, 1969 - syn of: Chicoreus brevifrons (J.B.P.A. Lamarck, 1822) - (MURICIDAE)
- incertus, Glabaris incertus F. Haas, 1931 - syn of: Anodontites obtusa (J.B. von Spix & J.A. Wagner, 1827) - (MYCETOPODIDAE)
- incertus, Octopus incertus G. Targioni-Tozzetti, 1869 - (OCTOPODIDAE)
- incertus, Palaeopharus incertus Efimova & Kiparisova, 1970 † - (PALAEOPHARIDAE) (FOSSIL)
- incertus, Mesopeplum incertus (Tenison Woods, 1867 †) - (PECTINIDAE) (FOSSIL)
- incertus, Fossarus incertus W.H. Turton, 1932 - syn of: Macromphalus incertus (W.H. Turton, 1932) - (PLANAXIDAE)
- incertus, Choanomphalus incertus W.A. Lindholm, 1909 - (PLANORBIDAE)
- incertus, Pleurodonte incertus (A.E.J. Férussac, 1822) - (PLEURODONTIDAE)
- incertus, Bizarrus incertus (F. Riedel, 1932 †) - (PUGNELLIDAE) (FOSSIL)
- incertus, Hippochrenes incertus Wrigley, 1938 † - (ROSTELLARIIDAE) (FOSSIL)
- incertus, Solen incertus S. Clessin, 1888 - syn of: Solen strictus A.A. Gould, 1861 - (SOLENIDAE)
- incertus, Strombus incertus d'Orbigny, 1843 † - syn of: Harpagodes nodosus (J. de C. Sowerby, 1823 †) - (STROMBIDAE) (FOSSIL)
- incertus, Pleuronautilus incertus (H.W. Von Abich, 1878 †) - (TAINOCERATIDAE) (FOSSIL)
- incertus, Triainoceras incertus (d'Archiac & de Verneuil, 1842 †) - (TRIAINOCERATIDAE) (FOSSIL)
- incertus, Solariconulus incertus Pan, 1982 † - (TROCHIDAE) (FOSSIL)
- incertus, Temnodiscus incertus J. Perner, 1903 † - syn of: Sinuitopsis neglecta J. Perner, 1903 † - (TROPIDODISCIDAE) (FOSSIL)
- incertus, Ptychorhynchus incertus C.T. Simpson, 1900 - syn of: Ptychorhynchus murinum (P.M. Heude, 1883) - (UNIONIDAE)
- incertus, Macromphalus incertus (W.H. Turton, 1932) - (VANIKORIDAE)
- incertus, Viviparus incertus Fuchs, 1877 † - (VIVIPARIDAE) (FOSSIL)
- incertus mesospiralis, Choanomphalus incertus mesospiralis W. Dybowski & J.G. Grochmalicki, 1925 - syn of: Choanomphalus maacki (G. Gerstfeldt, 1859) - (PLANORBIDAE)
- incertus similis, Fossarus incertus similis W.H. Turton, 1932 - syn of: Macromphalus incertus (W.H. Turton, 1932) - (PLANAXIDAE)
- incessa, Acmaea incessa R.B. Hinds, 1842 - syn of: Lottia insessa (R.B. Hinds, 1842) - (ACMAEIDAE)
- incessa, Dentimargo incessa (W.H. Dall, 1927) - (MARGINELLIDAE)
- inchoans, Pachystrophia inchoans (J. Perner, 1903 †) - (HOLOPEIDAE) (FOSSIL)
- inchoans, Raphistoma inchoans J. Perner, 1903 † - syn of: Pachystrophia inchoans (J. Perner, 1903 †) - (RAPHISTOMATIDAE) (FOSSIL)
- inchoata, Acicula inchoata P. Ehrmann, 1933 - syn of: Acicula fusca (G. Montagu, 1803) - (ACICULIDAE)
- inchoata, Bradybaena inchoata P.M.A. Morelet, 1845 - syn of: Portugala inchoata (P.M.A. Morelet, 1845) - (BRADYBAENIDAE)
- inchoata, Seila inchoata E. Rolán & F. Fernandes, 1990 - (CERITHIOPSIDAE)
- inchoata, Albinaria inchoata (O. Böttger, 1889) - (CLAUSILIIDAE)
- inchoata, Turricula inchoata A.E.M. Cossmann & G. Pissarro † - (CLAVATULIDAE) (FOSSIL)
- inchoata, Drillia inchoata (R. Sturany, 1903) - (DRILLIIDAE)
- inchoata, Portugala inchoata (P.M.A. Morelet, 1845) - (HYGROMIIDAE)
- inchoata, Mengoana inchoata Auct. non P.M.A. Morelet, 1854 - syn of: Mengoana jeschaui (W. Kobelt, 1878) - (HYGROMIIDAE)
- inchoata, Kellia inchoata J. Marwick, 1931 † - (KELLIIDAE) (FOSSIL)
- inchoata, Rissoa inchoata G.P. Deshayes, 1861 † - (RISSOIDAE) (FOSSIL)
- inchoata, Andoniopsis inchoata (G.P. Deshayes, 1864 †) - (TURRIDAE) (FOSSIL)
- inchoata klemmi, Albinaria inchoata klemmi (H. Nordsieck, 1972) - (CLAUSILIIDAE)
- inchoata paramythica, Albinaria inchoata paramythica H. Nordsieck, 1974 - (CLAUSILIIDAE)
- inchoata regina, Albinaria inchoata regina H. Nordsieck, 1972 - (CLAUSILIIDAE)
- Inchoatia, Genus Inchoatia E. Gittenberger & Uit de Weerd, 2006 (CLAUSILIIDAE)
- inchoatum, Angeisonoceras inchoatum (Barrande, 1868 †) - (GEISONOCERATIDAE) (FOSSIL)
- incidata, Odostomia incidata H.H. Suter, 1908 - (PYRAMIDELLIDAE)
- incidata, Tholostoma incidata (C. Hedley, 1902) - (TORNIDAE)
- incidata, Turbo incidata (C. Hedley, 1902) - (TURBINIDAE)
- incidatus, Amphithalamus incidatus (G.R. von Frauenfeld, 1867) - (ANABATHRIDAE)
- incidatus maoria, Amphithalamus incidatus maoria (W.F. Ponder, 1968) - (ANABATHRIDAE)
- incidenta, Sticteulima incidenta (C.F. Laseron, 1955) - (EULIMIDAE)
- Incidostoma, Subgenus Aperostoma (Incidostoma) P. Bartsch, 1942 (NEOCYCLOTIDAE)
- incii, doris incii J.E. Gray in M.E. Gray, 1850 - syn of: Halgerda willeyi C.N.E. Eliot, 1904 - (DORIDIDAE)
- incii, Fissurella incii L.A. Reeve, 1850 - syn of: Diodora lineata Sowerby, 1835 - (FISSURELLIDAE)
- incii, Diodora incii L.A. Reeve, 1850 - syn of: Diodora lineata Sowerby, 1835 - (FISSURELLIDAE)
- incii, Parapholas incii G.B. II Sowerby, 1849 - syn of: Parapholas quadrizonata (L. Spengler, 1792) - (PHOLADIDAE)
- Incilaria, syn of: Subgenus Philomycus (Meghimatium) J.C. van Hasselt, 1824 (PHILOMYCIDAE)
- Incilaster, syn of: Genus Bolma A. Risso, 1826 (TURBINIDAE)
- incilata, Tylospira incilata T.A. Darragh, 1991 † - (STRUTHIOLARIIDAE) (FOSSIL)
- incile, Bittium incile R.B. Watson, 1897 - (CERITHIIDAE)
- incile, Noetia incile (T. Say, 1824 †) - (NOETIIDAE) (FOSSIL)
- incile canariensis, Bittium incile canariensis F. Nordsieck, 1975 - syn of: Bittium incile R.B. Watson, 1897 - (CERITHIIDAE)
- incilifera, Drillia incilifera (T.A. Conrad, 1834 †) - (DRILLIIDAE) (FOSSIL)
- incilis, Drillia incilis R.B. Watson, 1881 - syn of: Glyphostoma gratula (W.H. Dall, 1881) - (DRILLIIDAE)
- incilis, Pleurotoma incilis R.B. Watson, 1881 - syn of: Glyphostoma gratula (W.H. Dall, 1881) - (TURRIDAE)
- Incillaria, syn of: Subgenus Philomycus (Meghimatium) J.C. van Hasselt, 1824 (PHILOMYCIDAE)
- incincta, Bulla incincta J.W. Mighels, 1844 - syn of: Acteocina canaliculata (T. Say, 1826) - (BULLIDAE)
- incincta, Benthomangelia incincta R.B. Watson, 1881 - syn of: Benthomangelia antonia (W.H. Dall, 1881) - (MANGELIIDAE)
- incincta, Retusa incincta J.W. Mighels, 1844 - syn of: Retusa obtusa (G. Montagu, 1808) - (RETUSIDAE)
- incincta, Pleurotoma incincta R.B. Watson, 1881 - syn of: Benthomangelia antonia (W.H. Dall, 1881) - (TURRIDAE)
- incincta, Pareora incincta (J. Marwick, 1931 †) - (TURRITELLIDAE) (FOSSIL)
- incinctus, Conus incinctus A. Feneaux, 1942 - syn of: Floraconus anemone (J.B.P.A. Lamarck, 1810) - (CONIDAE)
- incipiens, Pisinna incipiens (C.F. Laseron, 1956) - (ANABATHRIDAE)
- incipiens, Boiotremus incipiens (J. Perner, 1903 †) - (BUCANIIDAE) (FOSSIL)
- incipiens, Prososthenia incipiens D. Pantanelli, 1886 † - (HYDROBIIDAE) (FOSSIL)
- incipiens, Limax incipiens H.R. Simroth, 1912 - (LIMACIDAE)
- incipiens, Baeopleuroceras incipiens Cooper & Williams, 1935 † - (NEPHRITICERATIDAE) (FOSSIL)
- incipiens, Plectolites incipiens (Barrande, 1870 †) - (TROCHOLITIDAE) (FOSSIL)
- incirrata, Nematomenia incirrata L. Salvini-Plawén, 1978 - (DONDERSIIDAE)
- incisa, Entomoliva incisa P. Bouchet & R.N. Kilburn, 1991 - (ANCILLARIIDAE)
- incisa, Angaria incisa L.A. Reeve, 1842 - syn of: Angaria delphinus (C. Linnaeus, 1758) - (ANGARIIDAE)
- incisa, Funduella incisa G. Mandahl-Barth, 1968 - (BITHYNIIDAE)
- incisa, Moniliopsis incisa P.P. Carpenter, 1864 - syn of: Ophiodermella inermis (L.A. Reeve, 1843) - (BORSONIIDAE)
- incisa, Ophiodermella incisa P.P. Carpenter, 1864 - syn of: Ophiodermella inermis (L.A. Reeve, 1843) - (BORSONIIDAE)
- incisa, Cominella incisa (F.W. Hutton, 1885 †) - (BUCCINIDAE) (FOSSIL)
- incisa, Cyclocardia incisa (W.H. Dall, 1903) - (CARDITIDAE)
- incisa, Procochlodina incisa (H.C. Küster, 1875) - (CLAUSILIIDAE)
- incisa, Anachis incisa K. Monsecour & D. Monsecour, 2016 - (COLUMBELLIDAE)
- incisa, Costellaria incisa A. Garrett, 1880 - syn of: Vexillum zebuense (L.A. Reeve, 1844) - (COSTELLARIIDAE)
- incisa, Cylichna incisa L.W. Stephenson, 1941 † - (CYLICHNIDAE) (FOSSIL)
- incisa, Drillia incisa P.P. Carpenter, 1864 - syn of: Ophiodermella inermis (L.A. Reeve, 1843) - (DRILLIIDAE)
- incisa, Bembexia incisa E.F.R.K. Koken & J. Perner, 1925 † - syn of: Brachytomaria incisa (E.F.R.K. Koken & J. Perner, 1925 †) - (EOTOMARIIDAE) (FOSSIL)
- incisa, Haliotis incisa L.A. Reeve, 1846 - syn of: Haliotis tuberculata C. Linnaeus, 1758 - (HALIOTIDAE)
- incisa, Helix incisa J.F. Gmelin, 1791 - syn of: Tenagodus senegalensis (G.B. II Sowerby, 1876) - (HELICIDAE)
- incisa, Pyrgula incisa A. Fuchs, 1870 † - (HYDROBIIDAE) (FOSSIL)
- incisa, Janthina incisa R.A. Philippi, 1848 - syn of: Janthina exigua J.B.P.A. Lamarck, 1816 - (JANTHINIDAE)
- incisa, Littoraria incisa M. Yokoyama, 1927 - (LITTORINIDAE)
- incisa, Swainsonia ocellata incisa (A. Adams & L.A. Reeve, 1850) - (MITRIDAE)
- incisa, Favartia incisa (W.J. Broderip, 1833) - (MURICIDAE)
- incisa, Murex incisa W.J. Broderip, 1833 - syn of: Favartia incisa (W.J. Broderip, 1833) - (MURICIDAE)
- incisa, Nassaria incisa K. Fraussen, 2006 - (NASSARIIDAE)
- incisa, Natica incisa R.A. Philippi, 1852 - syn of: Glossaulax vesicalis (R.A. Philippi, 1848) - (NATICIDAE)
- incisa, Natica incisa R.A. Philippi, 1852 - syn of: Glossaulax vesicalis (R.A. Philippi, 1848) - (NATICIDAE)
- incisa, Paramiella incisa (J.B. Hombron & C.H. Jacquinot) - (NEOCYCLOTIDAE)
- incisa, Gonatorhaphe incisa J.B. Hombron & C.H. Jacquinot - syn of: Paramiella incisa (J.B. Hombron & C.H. Jacquinot) - (NEOCYCLOTIDAE)
- incisa, Nerinea incisa Giebel, 1853 † - (NERINEIDAE) (FOSSIL)
- incisa, Neritaria incisa E.A.L. Kittl, 1894 † - (NERITARIIDAE) (FOSSIL)
- incisa, Neritopsis incisa Hudleston † - (NERITOPSIDAE) (FOSSIL)
- incisa, Oleacina incisa L. Pfeiffer, 1867 - (OLEACINIDAE)
- incisa, Onchidella incisa (J.R.C. Quoy & J.P. Gaimard, 1832) - (ONCHIDIIDAE)
- incisa, Corona incisa (L.H. Hupé, 1857) - (ORTHALICIDAE)
- incisa, Ostrea incisa Martin, 1883 † - (OSTREIDAE) (FOSSIL)
- incisa, Diminovula incisa M. Azuma & C.N. Cate, 1971 - (OVULIDAE)
- incisa, Brachytomaria incisa (E.F.R.K. Koken & J. Perner, 1925 †) - (PHANEROTREMATIDAE) (FOSSIL)
- incisa, Martesia incisa É. Lamy, 1921 - syn of: Martesia striata (C. Linnaeus, 1758) - (PHOLADIDAE)
- incisa, Cyclostoma incisa J.B. Hombron & C.H. Jacquinot - syn of: Paramiella incisa (J.B. Hombron & C.H. Jacquinot) - (POMATIIDAE)
- incisa, Cerithideopsilla incisa J.B. Hombron & C.H. Jacquinot, 1848 - syn of: Cerithidea djadjariensis (K. Martin, 1899) - (POTAMIDIDAE)
- incisa, Phragmosphaera incisa (A.H. Clarke, 1885 †) - (PTEROTHECIDAE) (FOSSIL)
- incisa, Houbricka incisa (K.J. Bush, 1899) - (PYRAMIDELLIDAE)
- incisa, Turbonilla incisa K.J. Bush, 1899 - syn of: Houbricka incisa (K.J. Bush, 1899) - (PYRAMIDELLIDAE)
- incisa, Ringicula incisa C. Hedley, 1899 - (RINGICULIDAE)
- incisa, Happia incisa (L. Pfeiffer, 1866) - (SCOLODONTIDAE)
- incisa, Terebra incisa M.J. Faber, 2007 - (TEREBRIDAE)
- incisa, Viriola incisa (W.H. Pease, 1861) - (TRIPHORIDAE)
- incisa, Turritella incisa A. Brongniart, 1823 † - (TURRITELLIDAE) (FOSSIL)
- incisa, Turritella incisa L.A. Reeve, 1849 - (TURRITELLIDAE)
- incisa, Colpospira incisa J.E. Tenison-Woods, 1878 - syn of: Colpospira sophiae (J.W. Brazier, 1883) - (TURRITELLIDAE)
- incisa, Turritella incisa J.E. Tenison-Woods, 1878 - syn of: Colpospira sophiae (J.W. Brazier, 1883) - (TURRITELLIDAE)
- incisa, Dosinia incisa (L.A. Reeve, 1850) - (VENERIDAE)
- incisa, Volutomitra incisa (J. Marwick, 1942 †) - (VOLUTOMITRIDAE) (FOSSIL)
- incisa, Stosicia incisa (C.F. Laseron, 1956) - (ZEBINIDAE)
- incisa constricta, Turbonilla incisa constricta K.J. Bush, 1899 - syn of: Houbricka incisa (K.J. Bush, 1899) - (PYRAMIDELLIDAE)
- incisa obesa, Pyrgula incisa obesa Bartha, 1956 † - (HYDROBIIDAE) (FOSSIL)
- incisa pannonica, Pyrgula incisa pannonica Lörenthey, 1906 † - (HYDROBIIDAE) (FOSSIL)
- incisa quinquecincta, Moniliopsis incisa quinquecincta J. Grant & H.R. Gale, 1931 - syn of: Ophiodermella inermis quinquecincta (J. Grant & H.R. Gale, 1931 ) - (BORSONIIDAE)
- incisaeformis, Turritella incisaeformis M. Csepreghy, 1956 † - (TURRITELLIDAE) (FOSSIL)
- Incisilabium, Subgenus Monodonta (Incisilabium) A.E.M. Cossmann, 1918 (TROCHIDAE)
- incisogranulata, Hemicycla incisogranulata (A. Mousson, 1872) - (HELICIDAE)
- incisoides, Stenoglaphyrites incisoides Ruzhentsev & Bogoslovskaya, 1971 † - (STENOGLAPHYRITIDAE) (FOSSIL)
- incisula, Acteocina incisula (W.H. Dall, 1896 †) - (ACTEOCINIDAE) (FOSSIL)
- incisula, Cylichna incisula M. Yokoyama, 1928 - syn of: Liloa porcellana (A.A. Gould, 1859) - (CYLICHNIDAE)
- incisula, Emarginula incisula A. Adams, 1852 - syn of: Emarginella incisura (A. Adams, 1852) - (FISSURELLIDAE)
- incisula, Liloa incisula M. Yokoyama, 1928 - syn of: Liloa porcellana (A.A. Gould, 1859) - (HAMINOEIDAE)
- incisula, Curtitoma incisula (A.E. Verrill, 1882) - (MANGELIIDAE)
- incisula, Proximitra incisula Finlay, 1926 † - (MITRIDAE) (FOSSIL)
- incisula curtoides, Acteocina incisula curtoides J. Gardner, 1937 † - (ACTEOCINIDAE) (FOSSIL)
- incisula kolos, Acteocina incisula kolos J. Gardner, 1937 † - (ACTEOCINIDAE) (FOSSIL)
- incisum, Solarium incisum R.A. Philippi, 1849 - syn of: Architectonica perspectiva (C. Linnaeus, 1767) - (ARCHITECTONICIDAE)
- incisum, Caecum incisum A. Vannozzi, M. Pizzini & B.K. Raines, 2015 - (CAECIDAE)
- incisum, Cerion oweni incisum W.H. Dall, 1905 - (CERIONIDAE)
- incisum, Liocerithium incisum (G.B. II Sowerby, 1855) - (CERITHIIDAE)
- incisum, Cerithium incisum J.B. Hombron & C.H. Jacquinot, 1848 - syn of: Cerithidea djadjariensis (K. Martin, 1899) - (CERITHIIDAE)
- incisum, Nuculoceras incisum A. Hyatt, 1893 † - syn of: Stenoglaphyrites incisus (A. Hyatt, 1893 †) - (CRAVENOCERATIDAE) (FOSSIL)
- incisum, Hyperlioceras incisum Buckman, 1907 † - (GRAPHOCERATIDAE) (FOSSIL)
- incisum, Sinum incisum (L.A. Reeve, 1864) - (NATICIDAE)
- incisum, Onchidium incisum J.R.C. Quoy & J.P. Gaimard, 1832 - syn of: Onchidella incisa (J.R.C. Quoy & J.P. Gaimard, 1832) - (ONCHIDIIDAE)
- incisum, Lunupharciceras incisum Bockwinkel, Becker & Ebbighausen, 2013 † - (PHARCICERATIDAE) (FOSSIL)
- incisum, Platyostoma incisum A.C. Chapman, 1916 † - (PLATYCERATIDAE) (FOSSIL)
- incisum, Gyrotoma incisum (I. Lea, 1842) - (PLEUROCERIDAE)
- incisum, Isognomon incisum (T.A. Conrad, 1837) - (PTERIIDAE)
- incisum, Phragmostoma incisum A.H. Clarke, 1885 † - syn of: Phragmosphaera incisa (A.H. Clarke, 1885 †) - (PTEROTHECIDAE) (FOSSIL)
- incisum, Dolorthoceras incisum W.J. Gordon, 1964 † - (SPYROCERATIDAE) (FOSSIL)
- incisum, Canarium urceus incisum (W. Wood, 1828) - (STROMBIDAE)
- incisura, Emarginella incisura (A. Adams, 1852) - (FISSURELLIDAE)
- Incisura, Genus Incisura C. Hedley, 1904 (SCISSURELLIDAE)
- incisura, Purpurcapsula incisura Fehse, 2017 - (TRIVIIDAE)
- incisurus, Pododesmus incisurus (F.W. Hutton, 1873 †) - (ANOMIIDAE) (FOSSIL)
- incisus, Acteon incisus W.H. Dall, 1881 - (ACTEONIDAE)
- incisus, Aegires incisus (G.O. Sars, 1872) - (AEGIRIDAE)
- incisus, Janenschites incisus Arkadiev, 2007 † - (BOCHIANITIDAE) (FOSSIL)
- incisus, Plicifusus incisus W.H. Dall, 1919 - syn of: Plicifusus olivaceus (C.W.S. Aurivillius, 1885) - (BUCCINIDAE)
- incisus, Retifusus incisus W.H. Dall, 1919 - syn of: Plicifusus olivaceus (C.W.S. Aurivillius, 1885) - (BUCCINIDAE)
- incisus, Colus incisus W.H. Dall, 1919 - syn of: Plicifusus olivaceus (C.W.S. Aurivillius, 1885) - (BUCCINIDAE)
- incisus, Joculator incisus A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- incisus, Chiton incisus G.B. II Sowerby, 1841 - syn of: Schizochiton incisus (G.B. II Sowerby, 1841) - (CHITONIDAE)
- incisus, Streptotrochus incisus (Lindström, 1884 †) - (ELASMONEMATIDAE) (FOSSIL)
- incisus, Fusus incisus A.A. Gould, 1849 - syn of: Lirabuccinum dirum (L.A. Reeve, 1846) - (FASCIOLARIIDAE)
- incisus, Fusus incisus O.A.L. Mörch, 1852 - syn of: Syrinx aruanus (C. Linnaeus, 1758) - (FASCIOLARIIDAE)
- incisus, Cadulus incisus K.J. Bush, 1885 - syn of: Polyschides tetraschistus (R.B. Watson, 1879) - (GADILIDAE)
- incisus, Planaxis incisus R.A. Philippi, 1851 - (PLANAXIDAE)
- incisus, Bukkenites incisus Tozer, 1994 † - (PROPTYCHITIDAE) (FOSSIL)
- incisus, Schizochiton incisus (G.B. II Sowerby, 1841) - (SCHIZOCHITONIDAE)
- incisus, Stenoglaphyrites incisus (A. Hyatt, 1893 †) - (STENOGLAPHYRITIDAE) (FOSSIL)
- incisus, Trochus incisus Stoppani, 1858 † - syn of: Orthostomia ambrosinii Stoppani, 1858 † - (TROCHIDAE) (FOSSIL)
- incisus, Syrinx incisus O.A.L. Mörch, 1852 - syn of: Syrinx aruanus (C. Linnaeus, 1758) - (TURBINELLIDAE)
- incisus goikulensis, Schizochiton incisus goikulensis H.S. Ladd, 1966 - (SCHIZOCHITONIDAE)
- inclara, Triphora inclara S. Kosuge, 1974 - (TRIPHORIDAE)
- inclemens, Elaphoceras inclemens P.A. Zhuravleva, 1972 † - syn of: Sophoceras strenuum P.A. Zhuravleva, 1972 † - (DISCOSORIDA (unassigned)) (FOSSIL)
- inclinans, Goniobasis catenaria inclinans I. Lea, 1862 - (PLEUROCERIDAE)
- inclinans, Vitrinella inclinans K.H. Barnard, 1958 - (TORNIDAE)
- inclinans, Thapsia inclinans (H.B. Preston, 1914) - (UROCYCLIDAE)
- inclinata, Euplecta inclinata (L. Pfeiffer, 1864) - (ARIOPHANTIDAE)
- inclinata, Atlanta inclinata J.E. Gray, 1850 - (ATLANTIDAE)
- inclinata, Atlanta inclinata L.F.A. Souleyet, 1852 - syn of: Atlanta inclinata J.E. Gray, 1850 - (ATLANTIDAE)
- inclinata, Iredalea inclinata (G.B. III Sowerby, 1893) - (DRILLIIDAE)
- inclinata, Baylea inclinata Weller, 1929 † - (GOSSELETINIDAE) (FOSSIL)
- inclinata, Eulimella inclinata A. Peñas & E. Rolán, 2016 - (PYRAMIDELLIDAE)
- inclinata, Turbonilla inclinata K.J. Bush, 1899 - syn of: Turbonilla penistoni K.J. Bush, 1899 - (PYRAMIDELLIDAE)
- inclinata, Planutenia inclinata Elicki, 1994 † - syn of: Planutenia flectata Elicki, 1994 † - (STENOTHECIDAE) (FOSSIL)
- inclinata, Macoma inclinata G.B. Sowerby, 1904 - (TELLINIDAE)
- inclinata, Pleurotoma inclinata G.B. III Sowerby, 1893 - syn of: Iredalea inclinata (G.B. III Sowerby, 1893) - (TURRIDAE)
- inclinatum, Parvulactaeon inclinatum Schulbert & al., 2013 † - (BULLINIDAE) (FOSSIL)
- inclinatum, Caecum inclinatum L. de Folin, 1869 - (CAECIDAE)
- inclinatus, Drymaeus inclinatus L. Pfeiffer, 1862 - (BULIMULIDAE)
- inclinatus, Capitoconus inclinatus Skovsted, 2004 † - (HELCIONELLIDAE) (FOSSIL)
- inclitum, Buccinum inclitum H.A. Pilsbry, 1904 - syn of: Buccinum glaciale C. Linnaeus, 1761 - (BUCCINIDAE)
- inclusa, Dumortieria inclusa Buckman † - (HILDOCERATIDAE) (FOSSIL)
- inclusa, Lithophaga inclusa B. Phillips, 1829 † - (MYTILIDAE) (FOSSIL)
- inclusum, Hyperlioceras inclusum S.S. Buckman, 1907 † - (GRAPHOCERATIDAE) (FOSSIL)
- inclusus, Amphithalamus inclusus P. Lozouet, 1998 - (ANABATHRIDAE)
- inclyta, Luchuphaedusa inclyta (H.A. Pilsbry, 1908) - (CLAUSILIIDAE)
- Inclytoceras, Genus Inclytoceras Turek, 1976 † (TARPHYCERIDA (UNASSIGNED)) (FOSSIL)
- inclytum, Buccinum morchianum inclytum H.A. Pilsbry, 1904 - (BUCCINIDAE)
- inclytum, Epitonium inclytum J.C. Melvill, 1885 - syn of: Epitonium pallasi neglectum (A. Adams & L.A. Reeve, 1850) - (EPITONIIDAE)
- inclytum, Fuciniceras lavinianum inclytum (Fucini, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- inclytum, Loxonema inclytum J. Perner, 1907 † - (LOXONEMATIDAE) (FOSSIL)
- inclytum, Inclytoceras inclytum Barrande, 1865 † - syn of: Lechritrochoceras disjunctum (Barrande, 1865 †) - (TARPHYCERIDA (unassigned)) (FOSSIL)
- incognita, Cleionychia incognita Tunniliff, 1982 † - (AMBONYCHIIDAE) (FOSSIL)
- incognita, Karaftohelix incognita (A.A. Schileyko, 1988) - (BRADYBAENIDAE)
- incognita, Schilderia incognita L. Dolin & P. Lozouet, 2004 † - (CYPRAEIDAE) (FOSSIL)
- incognita, Auriculinella incognita Harmer † - (ELLOBIIDAE) (FOSSIL)
- incognita, Flabellina incognita (K.M. Derjugin & E.F. Gurjanova, 1926) - (FLABELLINIDAE)
- incognita, Mitra incognita B. de Basterot, 1825 † - (MITRIDAE) (FOSSIL)
- incognita, Cryptomya incognita Clark † - (MYIDAE) (FOSSIL)
- incognita, Nassa incognita K.H.J. Thiele, 1925 - syn of: Tritia casta (A.A. Gould, 1850) - (NASSARIIDAE)
- incognita, Saccella incognita (R.J.L. Guppy, 1867 †) - (NUCULANIDAE) (FOSSIL)
- incognita, Lenatheca incognita Meshkova, 1974 † - (ORTHOTHECIDAE) (FOSSIL)
- incognita, Alvania incognita A. Warén, 1996 - (RISSOIDAE)
- incognita, Zerotula incognita A. Warén & S. Hain, 1996 - (ZEROTULIDAE)
- incognitum, Proterovaginoceras incognitum (Schröder, 1882 †) - (ENDOCERATIDAE) (FOSSIL)
- incognitum, Endoceras incognitum Schröder, 1882 † - syn of: Proterovaginoceras incognitum (Schröder, 1882 †) - (ENDOCERATIDAE) (FOSSIL)
- incognitus, Drymaeus incognitus S.I. Da Costa, 1907 - (BULIMULIDAE)
- incognitus, Procerites incognitus Arkell † - (PERISPHINCTIDAE) (FOSSIL)
- incognitus, Kankelibranchus incognitus J.A. Ortea, J. Espinosa & G.M. Caballer, 2005 - (POLYCERIDAE)
- incola, Cerberilla incola R.F. Burn, 1974 - (AEOLIDIIDAE)
- incola, Gomphoceras incola Barrande, 1865 † - syn of: Umbeloceras incola (Barrande, 1865 †) - (DIESTOCERATIDAE) (FOSSIL)
- incola, Holopea incola J. Perner, 1903 † - (HOLOPEIDAE) (FOSSIL)
- incola, Umbeloceras incola (Barrande, 1865 †) - (MANDALOCERATIDAE) (FOSSIL)
- incola, Nuculana incola Barrande, 1881 † - syn of: Pseudocyrtodonta incola (Barrande, 1881 †) - (NUCULANIDAE) (FOSSIL)
- incola, Pseudocyrtodonta incola (Barrande, 1881 †) - (PSEUDOCYRTODONTIDAE) (FOSSIL)
- incola, Zonidiscus incola (J. Perner, 1903 †) - (TROPIDODISCIDAE) (FOSSIL)
- incolor, Eulima incolor P. Bouchet & A. Warén, 1986 - (EULIMIDAE)
- incolor, Hastula incolor G.P. Deshayes, 1859 - syn of: Hastula albula (K.T. Menke, 1843) - (TEREBRIDAE)
- incolor, Turritella incolor Smith, 1891 - (TURRITELLIDAE)
- incolorata, Hemiaclis incolorata (K.H.J. Thiele, 1912) - (EULIMIDAE)
- incolorata, Bulimeulima incolorata (K.H.J. Thiele, 1912) - (EULIMIDAE)
- incolorata, Alaba incolorata K.H.J. Thiele, 1912 - syn of: Bulimeulima incolorata (K.H.J. Thiele, 1912) - (LITIOPIDAE)
- incoloratus, Lignus incoloratus (R.J. Shuttleworth, 1856) - (ACHATINIDAE)
- incoloratus, Turbo incoloratus L.C. Kiener, 1847 - (TURBINIDAE)
- incolume, Andreioceras incolume P.A. Zhuravleva, 1972 † - syn of: Lysagoroceras subfusiforme (Münster, 1840 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- incolumis, Triphora incolumis J.C. Melvill, 1918 - (TRIPHORIDAE)
- Incomatiella, Genus Incomatiella M.R. Cooper, 2015 † (PTEROTRIGONIIDAE) (FOSSIL)
- incomitatum, Epitonium incomitatum G. Schmelz & R. Portell, 2007 † - (EPITONIIDAE) (FOSSIL)
- incomitatum, Sphaerium incomitatum (J.G.J. Kuiper, 1966) - (SPHAERIIDAE)
- incommoda, Bulla incommoda E.A. Smith, 1891 - syn of: Sphaerocylichna incommoda (E.A. Smith, 1891) - (BULLIDAE)
- incommoda, Albinaria contaminata incommoda O. Böttger, 1878 - (CLAUSILIIDAE)
- incommoda, Sphaerocylichna incommoda (E.A. Smith, 1891) - (CYLICHNIDAE)
- incommoda, Diala incommoda (N.H. Ludbrook, 1941 †) - (DIALIDAE) (FOSSIL)
- incommoda, Succincta flavida incommoda (A.J. Wagner, 1905) - (HELICINIDAE)
- incommodans, Nassarius incommodans M.A. Peyrot, 1924 † - (NASSARIIDAE) (FOSSIL)
- incommodum, Hemicerithium incommodum (G.P. Deshayes, 1864 †) - (CERITHIIDAE) (FOSSIL)
- incomparabile, Palliolum incomparabile (A. Risso, 1826) - (PECTINIDAE)
- incomparabilis, Sphaerocypraea incomparabilis (B. Briano, 1993) - (EOCYPRAEIDAE)
- incomparabilis, Chimaeria incomparabilis B. Briano, 1993 - syn of: Sphaerocypraea incomparabilis (B. Briano, 1993) - (EOCYPRAEIDAE)
- incomparabilis, Bemella incomparabilis Parkhaev, 2001 † - (HELCIONELLIDAE) (FOSSIL)
- incomparabilis, Turricaspia incomparabilis V.V. Anistratenko & Gozhik, 1995 † - (HYDROBIIDAE) (FOSSIL)
- incomparabilis, Rumina incomparabilis A. Risso, 1826 - syn of: Rumina decollata (C. Linnaeus, 1758) - (SUBULINIDAE)
- incomparabilis, Terebra incomparabilis G.P. Deshayes, 1859 - syn of: Terebra formosa G.P. Deshayes, 1857 - (TEREBRIDAE)
- incomperta, Lyria incomperta R.C. Hoerle & E.H. Vokes, 1978 † - (VOLUTIDAE) (FOSSIL)
- incompertum, Chrysoceras incompertum P.A. Zhuravleva, 1972 † - syn of: Chrysoceras tumidum (P.A. Zhuravleva, 1972 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- incompleta, Rissoa incompleta C. Hedley, 1908 - syn of: Haurakia discrepans (R. Tate & W.L. May, 1900) - (RISSOIDAE)
- incompletus, Chiton incompletus G. Fischer von Waldheim, 1807 - syn of: Tonicia atrata (G.B. II Sowerby, 1840) - (CHITONIDAE)
- incompletus, Donax incompletus J.B.P.A. Lamarck, 1806 † - (DONACIDAE) (FOSSIL)
- incompletus, Novitatus incompletus (Meshkova, 1974 †) - (NOVITATIDAE) (FOSSIL)
- incompositus, Fusus incompositus R. Tate, 1888 † - (FASCIOLARIIDAE) (FOSSIL)
- incompta, Tornatellaea incompta Finlay & J. Marwick, 1937 † - (ACTEONIDAE) (FOSSIL)
- incompta, Caecum incompta T.A. de M. Monterosato, 1884 - syn of: Caecum armoricum L. de Folin, 1869 - (CAECIDAE)
- incompta, Polymesoda incompta G.P. Deshayes, 1857 † - (CYRENIDAE) (FOSSIL)
- incompta, Splendrillia incompta F.S. MacNeil, 1960 † - (DRILLIIDAE) (FOSSIL)
- incompta, Campylaea incompta M. von Kimakowicz, 1890 - syn of: Faustina faustina associata (E.A. Rossmässler, 1835) - (HELICIDAE)
- incompta, Mitra incompta (J. Lightfoot, 1786) - (MITRIDAE)
- incompta, Coralliophila incompta S.S. Berry, 1960 - syn of: Attiliosa nodulosa (A. Adams, 1855) - (MURICIDAE)
- incompta, Trophon incompta A.A. Gould, 1860 - syn of: Ocenebra inornata (C.A. Récluz, 1851) - (MURICIDAE)
- incompta, Venus incompta R.A. Philippi, 1836 - syn of: Mysia undata (T. Pennant, 1777) - (VENERIDAE)
- incomptum, Litophragmatoceras incomptum J. Kennedy & Cobban, 1988 † - (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- incomptum, Campanile incomptum (G. Dixon, 1850 †) - (CAMPANILIDAE) (FOSSIL)
- incomptum, Cardium incomptum E. Forbes, 1846 - (CARDIIDAE)
- incomptum, Cerithioides incomptum E.G. Linsley, 1968 † - (GONIASMATIDAE) (FOSSIL)
- incomptus, Alzadites incomptus J. Kennedy & Cobban, 1990 † - (ACANTHOCERATIDAE) (FOSSIL)
- incomptus, Amblytochiton incomptus Hoare & Pojeta Jr., 2006 † - (ALASTEGIIDAE) (FOSSIL)
- incomptus, Bellerophon incomptus Gurley, 1884 † - (BELLEROPHONTIDAE) (FOSSIL)
- incomptus, Phenacomargarites incomptus B.A. Marshall, 2016 † - (CALLIOSTOMATIDAE) (FOSSIL)
- incomptus, Conus incomptus Deshayes, 1865 † - (CONIDAE) (FOSSIL)
- incomptus, Neocyclotus incomptus (G.B. Sowerby, 1850) - (NEOCYCLOTIDAE)
- inconcinna, Palaeomutela inconcinna Plotnikov † - (PALAEOMUTELIDAE) (FOSSIL)
- inconcinna, Oxyloma inconcinna M. Paulucci, 1881 - syn of: Oxyloma elegans (A. Risso, 1826) - (SUCCINEIDAE)
- inconcinna, Synaptocochlea inconcinna auct. non H.A. Pilsbry, 1921 - syn of: Synaptocochlea picta (A.V.M.D. D'Orbigny, 1847) - (TROCHIDAE)
- inconcinna, Synaptocochlea concinna inconcinna (H.A. Pilsbry, 1920, 1921) - (TROCHIDAE)
- inconcussum, Chrysoceras inconcussum P.A. Zhuravleva, 1972 † - syn of: Chrysoceras tumidum (P.A. Zhuravleva, 1972 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- incondita, Eulima incondita J. Marwick, 1931 † - (EULIMIDAE) (FOSSIL)
- incondita, Inodrillia incondita (E.A. Smith, 1888) - (HORAICLAVIDAE)
- inconditus, Inoceramus inconditus J. Marwick, 1953 † - (INOCERAMIDAE) (FOSSIL)
- inconditus, Fractoceramus inconditus (Marwick 1953) † - (PTERIIDA (UNASSIGNED)) (FOSSIL)
- incongrua, Anadara incongrua T. Say, 1822 - syn of: Anadara brasiliana (J.B.P.A. Lamarck, 1819) - (ARCIDAE)
- incongrua, Arca incongrua T. Say, 1822 - syn of: Anadara brasiliana (J.B.P.A. Lamarck, 1819) - (ARCIDAE)
- incongrua, Mactra incongrua L.A. Reeve, 1854 - syn of: Mactra cygnus J.F. Gmelin, 1791 - (MACTRIDAE)
- incongrua, Semele incongrua P.P. Carpenter, 1864 - syn of: Semele venusta L.A. Reeve, 1853 - (SEMELIDAE)
- incongrua, Macoma incongrua Martens, 1865 - (TELLINIDAE)
- incongruens, Straparollus incongruens J. Perner, 1903 † - (EUOMPHALIDAE) (FOSSIL)
- incongruens, Hebetoxyites incongruens Buckman † - (STRIGOCERATIDAE) (FOSSIL)
- incongruus, Leptochiton incongruus (W.H. Dall, 1908) - (LEPTOCHITONIDAE)
- incongruus, Nassarius incongruus Y. Otuka, 1937 † - (NASSARIIDAE) (FOSSIL)
- incongruus, Pseudamusium incongruus W.H. Dall, 1916 - syn of: Cyclopecten incongruus (W.H. Dall, 1916) - (PECTINIDAE)
- incongruus, Cyclopecten incongruus (W.H. Dall, 1916) - (PROPEAMUSSIIDAE)
- inconspicua, Tornatellinops inconspicua (J.W. Brazier, 1872) - (ACHATINELLIDAE)
- inconspicua, Acmaea inconspicua J.E. Gray, 1843 - syn of: Radiacmea inconspicua (J.E. Gray, 1843) - (ACMAEIDAE)
- inconspicua, Acteocina inconspicua A.A. Olsson & J.T.L. McGinty, 1958 - (ACTEOCINIDAE)
- inconspicua, Acteocina inconspicua (C.B. Adams, 1872) - (ACTEOCINIDAE)
- inconspicua, Anomia inconspicua Clark, 1918 † - (ANOMIIDAE) (FOSSIL)
- inconspicua, Tessarolax inconspicua W.M. Gabb, 1869 † - (APORRHAIDAE) (FOSSIL)
- inconspicua, Chromodoris inconspicua C.N.E. Eliot, 1904 - (CHROMODORIDIDAE)
- inconspicua, Cima inconspicua A. Warén, 1993 - (CIMIDAE)
- inconspicua, Littoridina inconspicua F. Haas, 1938 - (COCHLIOPIDAE)
- inconspicua, Mitrella inconspicua P. Marshall, 1918 † - (COLUMBELLIDAE) (FOSSIL)
- inconspicua, Eulima inconspicua R.B. Watson, 1897 - (EULIMIDAE)
- inconspicua, Vitreolina inconspicua (W.H. Turton, 1932) - (EULIMIDAE)
- inconspicua, Fissurella inconspicua (J.E. Gray, 1843) - (FISSURELLIDAE)
- inconspicua, Setoeolis inconspicua (K. Baba, 1938) - (GLAUCIDAE)
- inconspicua, Kerryclarkella inconspicua K. Jensen, 2015 - (LIMAPONTIIDAE)
- inconspicua, Limea inconspicua (J. Marwick, 1926 †) - (LIMIDAE) (FOSSIL)
- inconspicua, Radiacmea inconspicua (J.E. Gray, 1843) - (LOTTIIDAE)
- inconspicua, Levimyrtea inconspicua A.A. Olsson, 1964 † - (LUCINIDAE) (FOSSIL)
- inconspicua, Mesoginella inconspicua (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- inconspicua, Volvarina inconspicua G. Nevill & H. Nevill, 1874 - syn of: Demissa nevilli (F.P. Jousseaume, 1875) - (MARGINELLIDAE)
- inconspicua, Leptogyra inconspicua K.J. Bush, 1897 - (MELANODRYMIIDAE)
- inconspicua, Melanopsis inconspicua P.M. Pallary, 1927 - (MELANOPSIDAE)
- inconspicua, Microcolpia inconspicua Y.I. Starobogatov, 1992 - (MELANOPSIDAE)
- inconspicua, Nuculana inconspicua A. Adams, 1856 - syn of: Nuculana darwini (E.A. Smith, 1884) - (NUCULANIDAE)
- inconspicua, Nucula inconspicua H. Adams, 1871 - (NUCULIDAE)
- inconspicua, Olivella inconspicua (C.B. Adams, 1852) - (OLIVELLIDAE)
- inconspicua, Onchidoris inconspicua (J. Alder & A. Hancock, 1851) - (ONCHIDORIDIDAE)
- inconspicua, Doryssa inconspicua (A. Brot, 1874) - (PACHYCHILIDAE)
- inconspicua, Tylomelania inconspicua T. von Rintelen, P. Bouchet & M. Glaubrecht, 2007 - (PACHYCHILIDAE)
- inconspicua, Pandorella inconspicua W.M. Gabb, 1873 † - (PANDORIDAE) (FOSSIL)
- inconspicua, Patella inconspicua J.E. Gray, 1843 - syn of: Radiacmea inconspicua (J.E. Gray, 1843) - (PATELLIDAE)
- inconspicua, Cosa inconspicua (A.A. Olsson & J.T.L. McGinty, 1958) - (PHILOBRYIDAE)
- inconspicua, Pleurobranchaea inconspicua L.S.R. Bergh, 1897 - (PLEUROBRANCHAEIDAE)
- inconspicua, Psammobia inconspicua E. Forbes, 1846 - (PSAMMOBIIDAE)
- inconspicua, Odostomia inconspicua (C.B. Adams, 1852) - (PYRAMIDELLIDAE)
- inconspicua, Pusillina inconspicua (J. Alder, 1844) - (RISSOIDAE)
- inconspicua, Alvinia inconspicua C.B. Adams, 1852 - syn of: Alvania monserratensis F.C. Baker, G.D. Hanna & A.M. Strong, 1930 - (RISSOIDAE)
- inconspicua, Runcina inconspicua A.E. Verrill, 1901 - (RUNCINIDAE)
- inconspicua, Microsagda inconspicua (C.B. Adams, 1849) - (SAGDIDAE)
- inconspicua, Gulella inconspicua K.H.J. Thiele - (STREPTAXIDAE)
- inconspicua, Succinea inconspicua C.M.F. Ancey - (SUCCINEIDAE)
- inconspicua, Macoma inconspicua W.J. Broderip & G.B. I Sowerby, 1829 - syn of: Macoma balthica inconspicua W.J. Broderip & G.B. I Sowerby, 1829 - (TELLINIDAE)
- inconspicua, Macoma balthica inconspicua W.J. Broderip & G.B. I Sowerby, 1829 - (TELLINIDAE)
- inconspicua, Terebra inconspicua G.B. Pritchard & J.H. Gatliff, 1902 - syn of: Euterebra tristis (G.P. Deshayes, 1859) - (TEREBRIDAE)
- inconspicua, Euterebra inconspicua G.B. Pritchard & J.H. Gatliff, 1902 - syn of: Euterebra tristis (G.P. Deshayes, 1859) - (TEREBRIDAE)
- inconspicua, Teinostoma inconspicua K.H.J. Thiele, 1925 - (TORNIDAE)
- inconspicua, Triphora inconspicua C.B. Adams, 1852 - (TRIPHORIDAE)
- inconspicua, Coriophora inconspicua C.F. Laseron, 1958 - (TRIPHORIDAE)
- inconspicua, Chrysostoma inconspicua F.W. Hutton, 1873 - syn of: Cantharidus tesselatus (A. Adams, 1853) - (TROCHIDAE)
- inconspicua, Diplodonta inconspicua R.A. Philippi, 1845 - (UNGULINIDAE)
- inconspicua, Valvata inconspicua Adams, 1850 - (VALVATIDAE)
- inconspicua, Periglypta inconspicua W.J. Broderip & G.B. I Sowerby, 1835 - syn of: Pitar inconspicuus (W.J. Broderip & G.B. I Sowerby, 1835) - (VENERIDAE)
- inconspicua, Volutomitra inconspicua (F.W. Hutton, 1885 †) - (VOLUTOMITRIDAE) (FOSSIL)
- inconspicua, Yoldiella inconspicua A.E. Verrill & K.J. Bush, 1898 - (YOLDIIDAE)
- inconspicua, Schwartziella inconspicua (J.W. Brazier, 1877) - (ZEBINIDAE)
- inconspicua africana, Yoldia inconspicua africana J.A. Allen, A. Sanders & G. Hannah, 1995 - syn of: Yoldiella inconspicua A.E. Verrill & K.J. Bush, 1898 - (YOLDIIDAE)
- inconspicua densa, Pusillina inconspicua densa (F. Nordsieck, 1972) - (RISSOIDAE)
- inconspicua distans, Turboella inconspicua distans F. Nordsieck, 1972 - syn of: Pusillina inconspicua (J. Alder, 1844) - (RISSOIDAE)
- inconspicua major, Melanopsis inconspicua major P.M. Pallary, 1927 - (MELANOPSIDAE)
- inconspicua profundorum, Yoldiella inconspicua profundorum J.A. Allen, A. Sanders & G. Hannah, 1995 - syn of: Yoldiella alleni M. Huber, 2010 - (YOLDIIDAE)
- inconspicua ventrosa, Rissoa inconspicua ventrosa J.G. Jeffreys, 1867 - syn of: Pusillina inconspicua (J. Alder, 1844) - (RISSOIDAE)
- inconspicuous, Bulimulus inconspicuous F. Haas, 1949 - (BULIMULIDAE)
- inconspicuum, Strophiops inconspicuum W.H. Dall, 1905 - (CERIONIDAE)
- inconspicuum, Loxonema inconspicuum Girty, 1909 † - (LOXONEMATIDAE) (FOSSIL)
- inconspicuum, Berniceras inconspicuum (De Loriol, 1898 †) - (OPPELIIDAE) (FOSSIL)
- inconspicuum, Leptodesma inconspicuum (B. Phillips, 1836 †) - (PTERINEIDAE) (FOSSIL)
- inconspicuum, Metacoceras inconspicuum A. Hyatt, 1891 † - (TAINOCERATIDAE) (FOSSIL)
- inconspicuum lacunorum, Strophiops inconspicuum lacunorum W.H. Dall, 1905 - (CERIONIDAE)
- inconspicuus, Turbinilopsis inconspicuus de Koninck, 1881 † - (ANOMPHALIDAE) (FOSSIL)
- inconspicuus, Crassatella inconspicuus T. Nagao, 1928 † - (CRASSATELLIDAE) (FOSSIL)
- inconspicuus, Syncyclonema inconspicuus (Cragin, 1895 †) - (ENTOLIIDAE) (FOSSIL)
- inconspicuus, Murex inconspicuus G.B. II Sowerby, 1841 - syn of: Ocinebrina aciculata (J.B.P.A. Lamarck, 1822) - (MURICIDAE)
- inconspicuus, Octopus inconspicuus P. Brock, 1887 - (OCTOPODIDAE)
- inconspicuus, Pecten inconspicuus Cragin, 1895 † - syn of: Syncyclonema inconspicuus (Cragin, 1895 †) - (PECTINIDAE) (FOSSIL)
- inconspicuus, Pitar inconspicuus (W.J. Broderip & G.B. I Sowerby, 1835) - (VENERIDAE)
- inconspicuus pecosensis, Syncyclonema inconspicuus pecosensis Stanton, 1947 † - (ENTOLIIDAE) (FOSSIL)
- inconstans, Acompsoceras inconstans (F. Schlüter †) - (ACANTHOCERATIDAE) (FOSSIL)
- inconstans, Tubuaia inconstans (H.A. Pilsbry & C.M. Cooke, 1915) - (ACHATINELLIDAE)
- inconstans, Peltoceratoides inconstans Uhlig, 1881 † - (ASPIDOCERATIDAE) (FOSSIL)
- inconstans, Rasenia inconstans (Spath, 1935 †) - (AULACOSTEPHANIDAE) (FOSSIL)
- inconstans, Borissiakoceras inconstans Cobban & Gryc 1961 † - (BINNEYITIDAE) (FOSSIL)
- inconstans, Amphidromus inconstans E.C. Von Martens, 1899 - (CAMAENIDAE)
- inconstans, Strophiops inconstans C.J. Maynard & W.F. Clapp, 1920 - syn of: Cerion glans H.C. Küster, 1844 - (CERIONIDAE)
- inconstans, Cerithium inconstans B. de Basterot, 1825 † - syn of: Granulolabium plicatum (J.G. Bruguière, 1792 †) - (CERITHIIDAE) (FOSSIL)
- inconstans, Albinaria senilis inconstans (A. Mousson, 1859) - (CLAUSILIIDAE)
- inconstans, Coelostylina inconstans E.A.L. Kittl, 1894 † - (COELOSTYLINIDAE) (FOSSIL)
- inconstans, Columbella inconstans H.H. Suter, 1906 - syn of: Zemitrella sulcata (F.W. Hutton, 1873) - (COLUMBELLIDAE)
- inconstans, Purpuriconus inconstans (E.A. Smith, 1877) - (CONIDAE)
- inconstans, Vanuxemia inconstans Billings, 1858 † - (CYRTODONTIDAE) (FOSSIL)
- inconstans, Cycloscala inconstans M.E.A. de Boury, 1913 - syn of: Cycloscala echinaticosta (A.V.M.D. D'Orbigny, 1842) - (EPITONIIDAE)
- inconstans, Fusus inconstans C.E. Lischke, 1868 - syn of: Fusinus perplexus (A. Adams, 1864) - (FASCIOLARIIDAE)
- inconstans, Zurcheria inconstans Buckman † - (HAMMATOCERATIDAE) (FOSSIL)
- inconstans, Paradrillia inconstans (E.A. Smith, 1875) - (HORAICLAVIDAE)
- inconstans, Inoceramus inconstans Woods, 1911 † - syn of: Cremnoceramus rotundatus (Fiege, 1930 †) - (INOCERAMIDAE) (FOSSIL)
- inconstans, Zaletrigonia inconstans (van Hoepen, 1929 †) - (IOTRIGONIIDAE) (FOSSIL)
- inconstans, Anatina inconstans (R. von Cosel, 1995) - (MACTRIDAE)
- inconstans, Melanopsis inconstans M. von Neumayr, 1869 † - (MELANOPSIDAE) (FOSSIL)
- inconstans, Pseudoschloenbachia inconstans Spath, 1921 † - (MUNIERICERATIDAE) (FOSSIL)
- inconstans, Muniericeras inconstans de Grossouvre, 1894 † - (MUNIERICERATIDAE) (FOSSIL)
- inconstans, Xenostrobus inconstans (R.W. Dunker, 1856) - (MYTILIDAE)
- inconstans, Limnoperna inconstans (R.W. Dunker, 1856) - syn of: Xenostrobus inconstans (R.W. Dunker, 1856) - (MYTILIDAE)
- inconstans, Nassarius inconstans (R. Hoernes & M. Auinger, 1882 †) - (NASSARIIDAE) (FOSSIL)
- inconstans, Mutoblakeoceras inconstans Kröger, 2008 † - (NOTHOCERATIDAE) (FOSSIL)
- inconstans, Parapopanoceras inconstans Dagys & Ermakova, 1981 † - (PARAPOPANOCERATIDAE) (FOSSIL)
- inconstans, Pirenella inconstans (B. de Basterot, 1825 †) - (POTAMIDIDAE) (FOSSIL)
- inconstans, Dunkeria inconstans L. de Folin, 1871 - syn of: Aclis ascaris (Turton, 1819) - (PYRAMIDELLIDAE)
- inconstans, Hastula inconstans (R.B. Hinds, 1844) - (TEREBRIDAE)
- inconstans, Terebra inconstans R.B. Hinds, 1844 - syn of: Hastula inconstans (R.B. Hinds, 1844) - (TEREBRIDAE)
- inconstans, Eosurcula inconstans Cooper, 1894 † - (TURRIDAE) (FOSSIL)
- inconstans, Costellipitar inconstans (C. Hedley, 1923) - (VENERIDAE)
- inconstans, Pitar inconstans C. Hedley, 1923 - syn of: Costellipitar inconstans (C. Hedley, 1923) - (VENERIDAE)
- inconstans gracilis, Amphidromus inconstans gracilis H. Rolle, 1903 - (CAMAENIDAE)
- inconstans minor, Fusus inconstans minor C.E. Lischke, 1869 - syn of: Fusinus ferrugineus (J.T. Kuroda & T. Habe, 1960) - (FASCIOLARIIDAE)
- inconstans nodulosa, Melanopsis inconstans nodulosa Š. Brusina, 1874 † - (MELANOPSIDAE) (FOSSIL)
- inconstans plicatula, Melanopsis inconstans plicatula Š. Brusina, 1874 † - syn of: Melanopsis inconstans M. von Neumayr, 1869 † - (MELANOPSIDAE) (FOSSIL)
- inconstans prunulum, Paradrillia inconstans prunulum (J.C. Melvill & R. Standen, 1901) - (HORAICLAVIDAE)
- inconstans transiens, Pirenella inconstans transiens A.E.M. Cossmann & M.A. Peyrot, 1922 † - (POTAMIDIDAE) (FOSSIL)
- inconstantiplicatus, Gordenella inconstantiplicatus A.V. Guzhov, 2007 † - (GORDENELLIDAE) (FOSSIL)
- inconsueta, Strophiops inconsueta C.J. Maynard, 1913 - syn of: Cerion eleutherae H.A. Pilsbry & E.G. Vanatta, 1896 - (CERIONIDAE)
- inconsueta, Lophospira inconsueta Endo, 1935 † - syn of: Lophospira perangulata (J.W. Hall, 1847 †) - (LOPHOSPIRIDAE) (FOSSIL)
- inconvicta, Rhagada inconvicta E.A. Smith, 1894 - syn of: Westraltrachia oscarensis (J.C. Cox, 1892) - (CAMAENIDAE)
- inconvicta, Helix inconvicta E.A. Smith, 1894 - syn of: Westraltrachia oscarensis (J.C. Cox, 1892) - (HELICIDAE)
- incornuta, Melongena incornuta Hözl, 1962 † - (MELONGENIDAE) (FOSSIL)
- incospicua, Fissurella incospicua J.E. Gray, 1843 - syn of: Fissurella inconspicua (J.E. Gray, 1843) - (FISSURELLIDAE)
- incrasatus, Furcillidens incrasatus (G. Schwabl, 1963) - (CHAETODERMATIDAE)
- incrassa, Leptoconchus incrassa E. Gittenberger & A. Gittenberger, 2011 - (MURICIDAE)
- incrassa, Partula incrassa Crampton, 1916 - (PARTULIDAE)
- incrassata, Pupa incrassata G.B. Sowerby, 1876 - syn of: Cerion incrassatum (G.B. Sowerby, 1876) - (ACTEONIDAE)
- incrassata, Astarte incrassata (G.B. Brocchi, 1814 †) - (ASTARTIDAE) (FOSSIL)
- incrassata, Cardiola incrassata (P. Nyst 1836 †) - (CARDIOLIDAE) (FOSSIL)
- incrassata, Cardita incrassata T.A. Conrad, 1832 - syn of: Cardites floridanus (T.A. Conrad, 1838) - (CARDITIDAE)
- incrassata, Cardita incrassata G.B. I Sowerby, 1825 - syn of: Megacardita turgida (J.B.P.A. Lamarck, 1819) - (CARDITIDAE)
- incrassata, Semicassis incrassata (J.P.S. Grateloup, 1833 †) - (CASSIDAE) (FOSSIL)
- incrassata, Lyncina incrassata P. Dautzenberg, 1929 - syn of: Lyncina lynx (C. Linnaeus, 1758) - (CYPRAEIDAE)
- incrassata, Crassopleura incrassata (F. Dujardin, 1837 †) - (DRILLIIDAE) (FOSSIL)
- incrassata, Ovatella incrassata P.M. Pallary, 1900 - syn of: Myosotella myosotis (J.P.R. Draparnaud, 1801) - (ELLOBIIDAE)
- incrassata, Pseudochloritis incrassata (E. Klein, 1853 †) - (ELONIDAE) (FOSSIL)
- incrassata, Helix incrassata E. Klein, 1853 † - syn of: Pseudochloritis incrassata (E. Klein, 1853 †) - (HELICIDAE) (FOSSIL)
- incrassata, Cyrtodaria incrassata J.B.P.A. Lamarck, 1801 - syn of: Cyrtodaria siliqua (L. Spengler, 1793) - (HIATELLIDAE)
- incrassata, Hydrobia obtusa incrassata W.A. Wenz, 1913 † - (HYDROBIIDAE) (FOSSIL)
- incrassata, Lacuna incrassata E.A.L. Kittl, 1892 † - (LITTORINIDAE) (FOSSIL)
- incrassata, Miltha incrassata (Dubois, 1831 †) - (LUCINIDAE) (FOSSIL)
- incrassata, Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassata, Nassa incrassata G.B. Sowerby, 1900 - syn of: Nassarius kochianus (R.W. Dunker, 1846) - (NASSARIIDAE)
- incrassata, Nassarius incrassata H. Strøm, 1768 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassata, Oliva incrassata (J. Lightfoot, 1786) - (OLIVIDAE)
- incrassata, Pichleria incrassata C. Chen, 1976 † - (PICHLERIIDAE) (FOSSIL)
- incrassata, Chondrothyretes incrassata (L. Pfeiffer, 1862) - (POMATIIDAE)
- incrassata, Oonia incrassata E.A.L. Kittl, 1899 † - (PSEUDOMELANIIDAE) (FOSSIL)
- incrassata, Crassispira incrassata (G.B. I Sowerby, 1834) - (PSEUDOMELATOMIDAE)
- incrassata, Hippochrenes incrassata (G.P. Deshayes, 1865 †) - (ROSTELLARIIDAE) (FOSSIL)
- incrassata, Euglesa incrassata A. Ellis, 1940 - syn of: Pisidium subtruncatum A.W. Malm, 1855 - (SPHAERIIDAE)
- incrassata, Pelicaria incrassata (A.W.B. Powell, 1931 †) - (STRUTHIOLARIIDAE) (FOSSIL)
- incrassata, Thyasira incrassata (J.G. Jeffreys, 1876) - (THYASIRIDAE)
- incrassata, Erato incrassata Coppi 1876 - (TRIVIIDAE)
- incrassata, Turritella incrassata Sowerby, 1814 † - (TURRITELLIDAE) (FOSSIL)
- incrassata, Amiantis incrassata (Sowerby, 1817 †) - (VENERIDAE) (FOSSIL)
- incrassata, Venus incrassata G.B. Brocchi, 1814 - syn of: Astarte fusca (G.S. Poli, 1791) - (VENERIDAE)
- incrassata aurantiaca, Chondrothyretes incrassata aurantiaca (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- incrassata burchorum, Oliva incrassata burchorum R.F. Zeigler, 1969 - (OLIVIDAE)
- incrassata elongata, Nassa incrassata elongata M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassata extincta, Pseudochloritis incrassata extincta (J.P. Rambur, 1862 †) - (ELONIDAE) (FOSSIL)
- incrassata fumata, Chondrothyretes incrassata fumata (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- incrassata major, Nassa incrassata major J.G. Jeffreys, 1867 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassata minor, Nassa incrassata minor J.G. Jeffreys, 1867 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassata nivea, Oliva incrassata nivea H.A. Pilsbry, 1910 - (OLIVIDAE)
- incrassata nysti, Crassopleura incrassata nysti F.W. Harmer, 1915 † - syn of: Cerodrillia nysti (F.W. Harmer, 1915 †) - (DRILLIIDAE) (FOSSIL)
- incrassata simulans, Nassa incrassata simulans J.G. Jeffreys, 1867 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassata subincrassata, Chondrothyretes incrassata subincrassata (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- incrassata subscopulorum, Miltha incrassata subscopulorum (Orbigny, 1852) † - (LUCINIDAE) (FOSSIL)
- incrassata timoria, Oliva incrassata timoria P.L. Duclos, 1840 - (OLIVIDAE)
- incrassata trap, Amiantis incrassata trap F. Sacco † - syn of: Amiantis incrassata (Sowerby, 1817 †) - (VENERIDAE) (FOSSIL)
- incrassata varicosa, Nassa incrassata varicosa M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassatum, Buccinum incrassatum H. Strøm, 1768 - syn of: Tritia incrassata (H. Strøm, 1768) - (BUCCINIDAE)
- incrassatum, Cerion incrassatum (G.B. Sowerby, 1876) - (CERIONIDAE)
- incrassatum, Furcillidens incrassatum G. Schwabl, 1963 - syn of: Furcillidens incrasatus (G. Schwabl, 1963) - (CHAETODERMATIDAE)
- incrassatum, Nodicoeloceras incrassatum (C.T. Simpson, 1855 †) - (DACTYLIOCERATIDAE) (FOSSIL)
- incrassatum, Ellobium incrassatum (H. Adams & A. Adams, 1854) - (ELLOBIIDAE)
- incrassatum, Penicillus incrassatum J.C. Chenu, 1842 - syn of: Verpa philippinensis (J.C. Chenu, 1843) - (PENICILLIDAE)
- incrassatum, Chondrothyretes shuttleworthi incrassatum (B.H. Wright) - (POMATIIDAE)
- incrassatum, Microstagon laevigatum incrassatum (G.P. Deshayes, 1858 †) - (UNGULINIDAE) (FOSSIL)
- incrassatum microdon, Cerion incrassatum microdon H.A. Pilsbry & E.G. Vanatta, 1896 - syn of: Cerion microdon H.A. Pilsbry & E.G. Vanatta, 1896 - (CERIONIDAE)
- incrassatus, Toxoceratoides biplex incrassatus (A. von Koenen, 1902 †) - (ANCYLOCERATIDAE) (FOSSIL)
- incrassatus, Naesiotus incrassatus L. Pfeiffer, 1853 - syn of: Naesiotus nux (W.J. Broderip, 1832) - (BULIMULIDAE)
- incrassatus, Fusinus incrassatus J.B.P.A. Lamarck, 1816 - syn of: Fusinus undatus (J.F. Gmelin, 1791) - (FASCIOLARIIDAE)
- incrassatus, Megaxinus incrassatus (Dubois, 1831 †) - (LUCINIDAE) (FOSSIL)
- incrassatus, Nucella lapillus incrassatus (Sowerby, 1825) † - (MURICIDAE) (FOSSIL)
- incrassatus, Nassarius incrassatus (Muller, 1766 †) - (NASSARIIDAE) (FOSSIL)
- incrassatus, Nassarius incrassatus H. Strøm, 1768 - syn of: Tritia incrassata (H. Strøm, 1768) - (NASSARIIDAE)
- incrassatus, Planorbarius incrassatus (J.P. Rambur, 1862 †) - (PLANORBIDAE) (FOSSIL)
- incrassatus, Kuphus incrassatus W.M. Gabb, 1873 † - (TEREDINIDAE) (FOSSIL)
- incrassatus, Leptaxinus incrassatus (J.G. Jeffreys, 1876) - (THYASIRIDAE)
- incrassatus, Trochus incrassatus J.B.P.A. Lamarck, 1822 - syn of: Trochus stellatus J.F. Gmelin, 1791 - (TROCHIDAE)
- incrassatus, Unio incrassatus I. Lea, 1840 - syn of: Elliptio crassidens J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- incrassatus senegalensis, Nassarius incrassatus senegalensis H. von Maltzan, 1884 † - syn of: Tritia senegalensis (H. von Maltzan, 1884 †) - (NASSARIIDAE) (FOSSIL)
- incrassatus succisa, Thyasira incrassatus succisa J.G. Jeffreys, 1876 - syn of: Thyasira succisa (J.G. Jeffreys, 1876) - (THYASIRIDAE)
- incrassatus sulcatus, Naesiotus incrassatus sulcatus P.H. Reibisch, 1892 - syn of: Naesiotus nux (W.J. Broderip, 1832) - (BULIMULIDAE)
- increbescens, Pleurotomaria increbescens Stanton, 1947 † - (PLEUROTOMARIIDAE) (FOSSIL)
- incredita, Trituba incredita S. Gofas, 2003 - (NEWTONIELLIDAE)
- incredula, Xenuroturris incredula T. Iredale, 1931 - syn of: Iotyrris cingulifera (J.B.P.A. Lamarck, 1822) - (TURRIDAE)
- increnata, Pholadidea increnata J. Marwick, 1929 † - (PHOLADIDAE) (FOSSIL)
- incresens, Eccyliopterus incresens (d'Eichwald, 1860 †) - (LESUEURILLIDAE) (FOSSIL)
- incresens, Ecculiomphalus incresens (K.E.I. von Eichwald, 1840 †) - (OPHILETIDAE) (FOSSIL)
- incrusta, Guraleus incrusta (J.E. Tenison-Woods, 1877) - (MANGELIIDAE)
- incrustans, Coralliophaga incrustans C. Rousseau in J.B. Hombron & C.H. Jacquinot, 1854 - syn of: Coralliophaga decussata (L.A. Reeve, 1843) - (TRAPEZIDAE)
- incrustata, Tessarolax incrustata F.M. Anderson & G.D. Hanna, 1935 † - (APORRHAIDAE) (FOSSIL)
- incrustata, Coryda alauda incrustata C.G. Aguayo & M.L. Jaume - (CEPOLIDAE)
- incrustata, Synprosphyma incrustata H. Nordsieck, 2016 - (CLAUSILIIDAE)
- incrustata, Drepanomenia incrustata (J. Koren & D.C. Danielssen, 1877) - (DREPANOMENIIDAE)
- incrustata, Helix incrustata F. Poey, 1854 - syn of: Thysanophora incrustata (F. Poey, 1854) - (HELICIDAE)
- incrustata, Alcadia incrustata (J. Gundlach in L. Pfeiffer, 1859) - (HELICINIDAE)
- Incrustata, syn of: Genus Alcadia J.E. Gray, 1840 (HELICINIDAE)
- incrustata, Cyrtodaria incrustata L.A.G. d'A. Bosc, 1801 - syn of: Cyrtodaria siliqua (L. Spengler, 1793) - (HIATELLIDAE)
- incrustata, Thysanophora incrustata (F. Poey, 1854) - (THYSANOPHORIDAE)
- incrustatus, Pseudomphalotrochus incrustatus (E.G. Linsley & E.L. Yochelson, 1973 †) - (OMPHALOTROCHIDAE) (FOSSIL)
- incrustatus, Simrothiella incrustatus J. Koren & D.C. Danielssen, 1877 - syn of: Drepanomenia incrustata (J. Koren & D.C. Danielssen, 1877) - (SIMROTHIELLIDAE)
- incrutatus, Drepanomenia incrutatus J. Koren & D.C. Danielssen - syn of: Drepanomenia incrustata (J. Koren & D.C. Danielssen, 1877) - (DREPANOMENIIDAE)
- incubans, Cyclopecten incubans K.H. Barnard, 1964 - (PROPEAMUSSIIDAE)
- incubata, Cyclochlamys incubata (I. Hayami & T. Kase, 1993) - (CYCLOCHLAMYDIDAE)
- incubatus, Leptochiton incubatus Sirenko, 2017 - (LEPTOCHITONIDAE)
- inculta, Acteocina inculta (A.A. Gould, 1855) - (ACTEOCINIDAE)
- inculta, Bulla inculta A.A. Gould, 1855 - syn of: Acteocina inculta (A.A. Gould, 1855) - (BULLIDAE)
- inculta, Peristernia inculta A.A. Gould, 1860 - syn of: Leucozonia nassa (J.F. Gmelin, 1791) - (FASCIOLARIIDAE)
- inculta, Leucozonia inculta A.A. Gould, 1860 - syn of: Leucozonia nassa (J.F. Gmelin, 1791) - (FASCIOLARIIDAE)
- inculta, Troschelvindex inculta (F. Poey, 1851) - (POMATIIDAE)
- inculta, Siphonaria inculta A.A. Gould, 1846 - syn of: Siphonaria australis J.R.C. Quoy & J.P. Gaimard, 1833 - (SIPHONARIIDAE)
- incultus, Gymnites incultus (A.H.E. Beyrich, 1867 †) - (GYMNITIDAE) (FOSSIL)
- incumbens, Ancyloceras incumbens A. von Koenen, 1902 † - (ANCYLOCERATIDAE) (FOSSIL)
- incumbens, Prosolarium incumbens J. Perner, 1907 † - (LUCIELLIDAE) (FOSSIL)
- incumbens minor, Ancyloceras incumbens minor A. von Koenen, 1902 † - (ANCYLOCERATIDAE) (FOSSIL)
- incurva, Archinacella instabilis incurva Ulrich & Scofield, 1897 † - (ARCHINACELLIDAE) (FOSSIL)
- incurva, Crepidula incurva W.J. Broderip, 1834 - (CALYPTRAEIDAE)
- incurva, Crepidula incurva C.A. von Zittel, 1864 † - syn of: Maoricrypta radiata (F.W. Hutton, 1873 †) - (CALYPTRAEIDAE) (FOSSIL)
- incurva, Pteromeris incurva J.G. Jeffreys, 1874 - syn of: Coripia jozinae (J.J. Van Aartsen, 1985) - (CARDITIDAE)
- incurva, Mastakhella incurva Missarzhevsky, 1989 † - (CARINOPELTIDAE) (FOSSIL)
- incurva, Vitreolina incurva (M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1883) - (EULIMIDAE)
- incurva, Emarginula incurva J.G. Jeffreys, 1865 - syn of: Emarginula fissura (C. Linnaeus, 1758) - (FISSURELLIDAE)
- incurva, Rapa incurva (R.W. Dunker, 1852) - (MURICIDAE)
- incurva, Rapa incurva R.W. Dunker, 1852 - syn of: Rapa incurva (R.W. Dunker, 1852) - (MURICIDAE)
- incurva, Gervillia incurva Moore † - (MYALINIDAE) (FOSSIL)
- incurva, Turbitrigonia incurva (Benett 1831) † - (MYOPHORELLIDAE) (FOSSIL)
- incurva, Crenomytilus incurva (T.A. Conrad, 1839 †) - (MYTILIDAE) (FOSSIL)
- incurva, Lithophaga incurva W.M. Gabb, 1861 - syn of: Lithophaga aristata L.W. Dillwyn, 1817 - (MYTILIDAE)
- incurva, Ritena incurva E.C. Von Martens - (NERITIDAE)
- incurva, Ostrea incurva Nilsson † - (OSTREIDAE) (FOSSIL)
- incurva, Partula incurva J.D.W. Hartmann, 1821 - (PARTULIDAE)
- incurva, Patella incurva J.F. Gmelin, 1791 - syn of: Hipponix incurvus (J.F. Gmelin, 1791) - (PATELLIDAE)
- incurva, Pinna incurva J.F. Gmelin, 1791 - (PINNIDAE)
- incurva, Cyrtopinna incurva L.A. Reeve, 1858 - syn of: Pinna incurva J.F. Gmelin, 1791 - (PINNIDAE)
- incurva, Turbonilla incurva (C.F. Laseron, 1959) - (PYRAMIDELLIDAE)
- incurvata, Bakevellia incurvata Lepsius, 1878 † - (BAKEVELLIIDAE) (FOSSIL)
- incurvata, Colus curtus incurvata F.W. Harmer † - (BUCCINIDAE) (FOSSIL)
- incurvata, Ischnoplax incurvata (E.H.J. Leloup, 1953) - (CALLISTOPLACIDAE)
- incurvata, Erosaria incurvata J.G. Walls, 1980 - syn of: Erosaria lamarckii (J.E. Gray, 1825) - (CYPRAEIDAE)
- incurvata, Dactyloteuthis incurvata Zieten, 1831 † - (MEGATEUTHIDIDAE) (FOSSIL)
- incurvata, Mitra incurvata P. Parenzan, 1970 - syn of: Mitra zonata F. Marryat, 1818 - (MITRIDAE)
- incurvata, Pinna incurvata Sowerby, 1825 - syn of: Pinna incurva J.F. Gmelin, 1791 - (PINNIDAE)
- incurvata, Pinna incurvata I. von Born, 1778 - syn of: Pinna nobilis C. Linnaeus, 1758 - (PINNIDAE)
- incurvatus, Euhomaloceras incurvatus (F. Dujardin, 1837 †) - (BACULITIDAE) (FOSSIL)
- incurvatus, Callistochiton incurvatus E.H.J. Leloup, 1953 - syn of: Ischnoplax pectinata (G.B. II Sowerby, 1840) - (CALLISTOPLACIDAE)
- incurvatus, Capulus incurvatus (J.F. Gmelin, 1791 †) - (CAPULIDAE) (FOSSIL)
- incurvatus, Capulus incurvatus E. de C. Rios, 1970 - syn of: Hipponix incurvus (J.F. Gmelin, 1791) - (CAPULIDAE)
- incurvatus, Krebsia incurvatus R.T. Abbott, 1954 - syn of: Hipponix incurvus (J.F. Gmelin, 1791) - (CAPULIDAE)
- incurvatus, Inoceramus incurvatus Tate † - (INOCERAMIDAE) (FOSSIL)
- incurvatus, Musculus incurvatus O.A. Scarlato, 1960 - syn of: Musculus discors (C. Linnaeus, 1767) - (MYTILIDAE)
- incurvatus, Modiolus incurvatus T. Pennant, 1777 - syn of: Modiolus barbatus (C. Linnaeus, 1758) - (MYTILIDAE)
- incurvatus, Unio incurvatus J.A.J. Colbeau, 1868 - syn of: Unio tumidus A. Retzius, 1788 - (UNIONIDAE)
- incurvilineatum, Palaeozygopleura incurvilineatum (Kirchner, 1915 †) - (PALAEOZYGOPLEURIDAE) (FOSSIL)
- incurvis, Unio incurvis T. Say, 1829 - syn of: Obovaria retusa J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- incurvispina, Pteropurpura incurvispina R.N. Kilburn, 1970 - (MURICIDAE)
- incurvus, Capulus incurvus G. Rosenberg, 1996 - syn of: Hipponix incurvus (J.F. Gmelin, 1791) - (CAPULIDAE)
- incurvus, Conus incurvus G.B. I Sowerby, 1833 - syn of: Gradiconus regularis (G.B. I Sowerby, 1833) - (CONIDAE)
- incurvus, Hipponix incurvus (J.F. Gmelin, 1791) - (HIPPONICIDAE)
- incurvus, Bulbus incurvus R.W. Dunker, 1852 - syn of: Rapa incurva (R.W. Dunker, 1852) - (NATICIDAE)
- incurvus, Potomida incurvus I. Lea, 1831 - syn of: Potomida littoralis umbonata E.A. Rossmässler, 1844 - (UNIONIDAE)
- incusus, Aegires incusus S.J. Fahey & T.M. Gosliner, 2004 - (AEGIRIDAE)
- incycloseris, Leptoconchus incycloseris E. Gittenberger & A. Gittenberger, 2011 - (MURICIDAE)
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