- navacellensis, Bythinella navacellensis V. Prie & J.M. Bichain, 2009 - (BYTHINELLIDAE)
- Navaculina, syn of: Genus Novaculina W.H. Benson, 1830 (PHARIDAE)
- navajovus, Gervillia navajovus Kirkland, 1996 † - (MYALINIDAE) (FOSSIL)
- navakaensis, Pseudomalaxis navakaensis H.S. Ladd, 1982 - syn of: Pseudomalaxis obolos (K.H. Barnard, 1963) - (ARCHITECTONICIDAE)
- navakaensis, Pedicularia navakaensis H.S. Ladd, 1982 - (PEDICULARIIDAE)
- navakaensis, Kaiparathina navakaensis (H.S. Ladd, 1982 †) - (TURBINIDAE) (FOSSIL)
- navalis, Strophiops navalis C.J. Maynard & W.F. Clapp, 1920 - (CERIONIDAE)
- navalis, Cochliopina navalis J.P.E. Morrison, 1946 - (COCHLIOPIDAE)
- navalis, Teredo navalis C. Linnaeus, 1758 - (TEREDINIDAE)
- navalis borealis, Teredo navalis borealis G.F. Roch, 1931 - syn of: Teredo navalis C. Linnaeus, 1758 - (TEREDINIDAE)
- navalis occlusa, Teredo navalis occlusa J.G. Jeffreys, 1865 - syn of: Teredo navalis C. Linnaeus, 1758 - (TEREDINIDAE)
- Navanax, Genus Navanax H.A. Pilsbry, 1895 (AGLAJIDAE)
- Navarchus, syn of: Genus Navanax H.A. Pilsbry, 1895 (AGLAJIDAE)
- navarchus, Turricula navarchus (J.C. Melvill & R. Standen, 1903) - (CLAVATULIDAE)
- navarchus, Chlamys navarchus W.H. Dall, 1898 - syn of: Chlamys rubida R.B. Hinds, 1845 - (PECTINIDAE)
- navarchus, Pleurotoma navarchus J.C. Melvill & R. Standen, 1903 - syn of: Turricula navarchus (J.C. Melvill & R. Standen, 1903) - (TURRIDAE)
- navarettei, Odostomia navarettei F.C. Baker, G.D. Hanna & A.M. Strong, 1928 - (PYRAMIDELLIDAE)
- Navariella, syn of: Subgenus Alzoniella (Navarriella) H.D. Boeters, 2000 (HYDROBIIDAE)
- navarrensis, Bulimus navarrensis G.F. Angas, 1875 - syn of: Drymaeus costaricensis L. Pfeiffer, 1862 - (BULIMULIDAE)
- navarrensis, Plesiella navarrensis H.D. Boeters, 2003 - (HYDROBIIDAE)
- navarrensis, Alzoniella navarrensis H.D. Boeters, 1999 - (HYDROBIIDAE)
- navarricus, Ortizius navarricus (J.R. Bourguignat, 1870) - (OXYCHILIDAE)
- navarricus helveticus, Ortizius navarricus helveticus (J. Blum, 1881) - (OXYCHILIDAE)
- Navarriella, Subgenus Alzoniella (Navarriella) H.D. Boeters, 2000 (HYDROBIIDAE)
- navarroanus, Nemodon grandis navarroanus L.W. Stephenson, 1941 † - (PARALLELODONTIDAE) (FOSSIL)
- navarroensis, Didymoceras navarroensis (Shumard, 1861 †) - (NOSTOCERATIDAE) (FOSSIL)
- navarroensis, Longoconcha navarroensis (W.M. Gabb, 1864 †) - (PHOLIDOTOMIDAE) (FOSSIL)
- navarroi, Africonus navarroi (E. Rolán, 1986) - (CONIDAE)
- navarroi, Radix navarroi (Royo Gómez, 1922 †) - (LYMNAEIDAE) (FOSSIL)
- navarroi, Melanopsis navarroi E. Vidal, 1917 † - (MELANOPSIDAE) (FOSSIL)
- navarroi calhetae, Conus navarroi calhetae E. Rolán, 1990 - syn of: Africonus calhetae (E. Rolán, 1990) - (CONIDAE)
- navasi, Pyrenaearia navasi (P. Fagot, 1907) - (HYGROMIIDAE)
- navasi sylvatica, Pyrenaearia navasi sylvatica C.E. Prieto, 1991 - (HYGROMIIDAE)
- navasiana, Corrosella navasiana (P. Fagot, 1907) - (HYDROBIIDAE)
- navassense, Chondropoma navassense G.W. Tryon, 1866 - (POMATIIDAE)
- navaxica, Oxychilus navaxica Jeannel, 1926 - syn of: Oxychilus cellarius (O.F. Müller, 1774) - (OXYCHILIDAE)
- Navea, syn of: Genus Penitella A. Valenciennes, 1846 (PHOLADIDAE)
- navella, Tiberia navella J.J. Van Aartsen & J.X. Corgan, 1996 - (PYRAMIDELLIDAE)
- navensis, Unio navensis C.R. Böttger, 1912 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- navia, Crepidula navia M. Yokoyama, 1925 † - (CALYPTRAEIDAE) (FOSSIL)
- navia, Texigryphaea navia T.A. Conrad, 1857 † - (GRYPHAEIDAE) (FOSSIL)
- navica, Lottia navica L.A. Reeve, 1854 - syn of: Lottia mitella (K.T. Menke, 1847) - (LOTTIIDAE)
- navicella, Arca navicella L.A. Reeve, 1844 - syn of: Striarca navicella (L.A. Reeve, 1844) - (ARCIDAE)
- navicella, Crepidula navicella (R.P. Lesson, 1831) - (CALYPTRAEIDAE)
- navicella, Volvarina navicella L.A. Reeve, 1865 - syn of: Volvarina taeniata (G.B. I Sowerby, 1846) - (MARGINELLIDAE)
- Navicella, syn of: Genus Septaria A.E.J. Férussac, 1807 (NERITIDAE)
- navicella, Striarca navicella (L.A. Reeve, 1844) - (NOETIIDAE)
- navicella, Anodonta navicella P.M. Heude, 1880 - syn of: Sinanodonta woodiana (I. Lea, 1834) - (UNIONIDAE)
- navicelloides, Crepidula navicelloides P.P. Carpenter, 1864 - syn of: Crepidula nummaria A.A. Gould, 1846 - (CALYPTRAEIDAE)
- navicelloides, Scutellina navicelloides P.P. Carpenter, 1856 - syn of: Phenacolepas osculans (C.B. Adams, 1852) - (PHENACOLEPADIDAE)
- Navicula, syn of: Genus Arca C. Linnaeus, 1758 (ARCIDAE)
- navicula, Argonauta navicula J. Lightfoot, 1786 - syn of: Argonauta nodosa J. Lightfoot, 1786 - (ARGONAUTIDAE)
- navicula, Belemnites navicula Raspail, 1829 † - syn of: Adiakritobelus brevirostris (Raspail, 1829 †) - (BELEMNITELLIDAE) (FOSSIL)
- navicula, Cochlorina navicula J.A. Wagner in J.B. von Spix, 1827 - syn of: Cochlorina navicularis (J.A. Wagner in J.B. von Spix, 1827) - (BULIMULIDAE)
- navicula, Bulla navicula E.M. Da Costa, 1778 - syn of: Haminoea navicula (E.M. Da Costa, 1778) - (BULLIDAE)
- navicula, Crepidula navicula O.A.L. Mörch, 1877 - (CALYPTRAEIDAE)
- navicula, Cuna navicula P.U. Middelfart, 2002 - (CONDYLOCARDIIDAE)
- navicula, Paradonax californicus navicula (S.C.T. Hanley, 1845) - (DONACIDAE)
- navicula, Tugali navicula Finlay, 1926 † - (FISSURELLIDAE) (FOSSIL)
- navicula, Haminoea navicula (E.M. Da Costa, 1778) - (HAMINOEIDAE)
- navicula, Laternula navicula (L.A. Reeve, 1863) - (LATERNULIDAE)
- navicula, Entodesma navicula (A. Adams & L.A. Reeve, 1850) - (LYONSIIDAE)
- navicula, Lyonsia navicula A. Adams & L.A. Reeve, 1850 - syn of: Entodesma navicula (A. Adams & L.A. Reeve, 1850) - (LYONSIIDAE)
- navicula, Anatina navicula L.A. Reeve, 1863 - syn of: Laternula navicula (L.A. Reeve, 1863) - (MACTRIDAE)
- navicula, Sexta navicula Stephenson 1952 † - (MACTROMYIDAE) (FOSSIL)
- navicula, Neilo navicula A. Valenciennes in A. Dupetit-Thouars, 1846 - syn of: Neilo australis (J.R.C. Quoy & J.P. Gaimard, 1835) - (MALLETIIDAE)
- navicula, Fabella navicula A.A. Olsson & A. Harbison, 1953 † - (SPORTELLIDAE) (FOSSIL)
- navicula, Anodonta navicula H.B. Preston, 1912 - syn of: Sinanodonta woodiana (I. Lea, 1834) - (UNIONIDAE)
- navicula, Cymbium navicula J.F. Gmelin, 1791 - syn of: Cymbium pepo (J. Lightfoot, 1786) - (VOLUTIDAE)
- navicula, Yoldia navicula L.S. Zhidkova, 1980 - (YOLDIIDAE)
- navicula naviculoides, Entodesma navicula naviculoides M. Yokoyama, 1922 - (LYONSIIDAE)
- navicula saxicola, Entodesma navicula saxicola (W. Baird, 1863) - (LYONSIIDAE)
- naviculae, Oxycypraea naviculae (Schilder 1924 †) - (EOCYPRAEIDAE) (FOSSIL)
- naviculare, Calycoceras naviculare (Mantell, 1822 †) - (ACANTHOCERATIDAE) (FOSSIL)
- navicularis, Ammonites navicularis Mantell, 1822 † - syn of: Calycoceras naviculare (Mantell, 1822 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- navicularis, Arca navicularis J.G. Bruguière, 1789 - (ARCIDAE)
- navicularis, Cochlorina navicularis (J.A. Wagner in J.B. von Spix, 1827) - (BULIMULIDAE)
- navicularis, Capulus navicularis C.L.F. von Sandberger, 1863 - (CAPULIDAE)
- navicularis, Neopycnodonta navicularis (G.B. Brocchi, 1814 †) - (GRYPHAEIDAE) (FOSSIL)
- navicularis, Nucula navicularis J.P.Y. Couthouy, 1831 - syn of: Megayoldia thraciaeformis (D.H. Storer, 1838) - (NUCULIDAE)
- navicularis, Nucula navicularis J.P.Y. Couthouy, 1839 - syn of: Megayoldia thraciaeformis (D.H. Storer, 1838) - (NUCULIDAE)
- navicularis, Megayoldia navicularis J.P.Y. Couthouy, 1839 - syn of: Megayoldia thraciaeformis (D.H. Storer, 1838) - (YOLDIIDAE)
- navicularis lateritius, Cochlorina navicularis lateritius H.A. Pilsbry - (BULIMULIDAE)
- navicularis linter, Cochlorina navicularis linter I.H. Jonas, 1844 - (BULIMULIDAE)
- Naviculavolva, Genus Naviculavolva F.Jr. Lorenz & D. Fehse, 2009 (OVULIDAE)
- naviculoides, Entodesma navicula naviculoides M. Yokoyama, 1922 - (LYONSIIDAE)
- naviculoides, Modiolus naviculoides C.M. Kolesnikov † - (MYTILIDAE) (FOSSIL)
- naviculoides, Sinuites naviculoides E.F.R.K. Koken, 1896 † - (SINUITIDAE) (FOSSIL)
- naviculoides, Unio naviculoides I. Lea, 1857 - syn of: Elliptio lanceolata I. Lea, 1827 - (UNIONIDAE)
- naviculus, Phacoides naviculus A.E.M. Cossmann, 1905 † - (LUCINIDAE) (FOSSIL)
- navidadensis, Paulinatrophon navidadensis C. Nielsen, 2003 † - (MURICIDAE) (FOSSIL)
- navidadensis, Amiantis navidadensis D. Frassinetti & Covacevich, 1993 † - (VENERIDAE) (FOSSIL)
- navidadiformis, Eurhomalea navidadiformis D. Frassinetti & Covacevich, 1999 † - (VENERIDAE) (FOSSIL)
- Navidadina, Genus Navidadina Nielsen, 2003 † (MURICIDAE) (FOSSIL)
- navidensis, Fissurella navidensis J. Ramírez-Böhme, 1974 - syn of: Fissurella picta (J.F. Gmelin, 1791) - (FISSURELLIDAE)
- naviformis, Anomia naviformis I.H. Jonas, 1847 - syn of: Enigmonia aenigmatica (H.S. Holten, 1802) - (ANOMIIDAE)
- naviformis, Enigmonia naviformis I.H. Jonas, 1847 - syn of: Enigmonia aenigmatica (H.S. Holten, 1802) - (ANOMIIDAE)
- naviformis, Argonauta naviformis T.A. Conrad, 1854 - syn of: Argonauta argo C. Linnaeus, 1758 - (ARGONAUTIDAE)
- naviformis, Cardita naviformis L.A. Reeve, 1843 - syn of: Carditella naviformis (L.A. Reeve, 1843) - (CARDITIDAE)
- naviformis, Carditella naviformis (L.A. Reeve, 1843) - (CONDYLOCARDIIDAE)
- naviformis, Unio naviformis J.B.P.A. Lamarck, 1819 - syn of: Theliderma cylindrica (T. Say, 1817) - (UNIONIDAE)
- navigatoria, Partula navigatoria (L. Pfeiffer, 1849) - (PARTULIDAE)
- navigatoria levilineata, Partula navigatoria levilineata D.M. Crampton, 1956 - (PARTULIDAE)
- navigatorum, Omphalotropis navigatorum (H. Strøm, 1765) - (ASSIMINEIDAE)
- navigatum, Eucrassatella navigatum (S.L. Lovén, 1846) - (CRASSATELLIDAE)
- navigatus, Fluctiger navigatus (C. Hedley, 1906) - (CRASSATELLIDAE)
- navigera, Pterotrachea navigera S. Delle Chiaje, 1828 - syn of: Carinaria lamarcki F. Péron & C.A. Lesueur, 1810 - (PTEROTRACHEIDAE)
- navigioliformis, Unio navigioliformis I. Lea, 1859 - syn of: Cucumerunio novaehollandiae (J.E. Gray, 1834) - (UNIONIDAE)
- naviglioformis, Unio naviglioformis F.R. Woodward, 1984 - syn of: Cucumerunio novaehollandiae (J.E. Gray, 1834) - (UNIONIDAE)
- navigoliformis, Unio navigoliformis C.T. Simpson, 1900 - syn of: Cucumerunio novaehollandiae (J.E. Gray, 1834) - (UNIONIDAE)
- navis, Ammonites navis Dumortier, 1874 † - syn of: Haugia variabilis (A.V.M.D. D'Orbigny, 1844 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- navis, Palaeonucula navis (L.É.S. Piette, 1868 †) - (NUCULIDAE) (FOSSIL)
- navis, Haugia navis d'Orbigny, 1844 † - syn of: Haugia variabilis (A.V.M.D. D'Orbigny, 1844 †) - (PHYMATOCERATIDAE) (FOSSIL)
- navisa, Nuculana navisa (W.H. Dall, 1916) - (NUCULANIDAE)
- navisa, Ividella navisa (W.H. Dall & P. Bartsch, 1907) - (PYRAMIDELLIDAE)
- navisa, Odostomia navisa W.H. Dall & P. Bartsch, 1907 - syn of: Ividella navisa (W.H. Dall & P. Bartsch, 1907) - (PYRAMIDELLIDAE)
- navratilovae, Gibberula navratilovae J.A. Ortea, 2015 - (CYSTISCIDAE)
- navutuenis, Sinployea navutuenis G.A. Solem, 1983 - (CHAROPIDAE)
- nawaji, Architeuthis nawaji Cadenat, 1935 - syn of: Architeuthis dux J.J.S. Steenstrup, 1857 - (ARCHITEUTHIDAE)
- Nawenia, syn of: Genus Pisanianura G. Rovereto, 1899 (PISANIANURIDAE)
- naxa, Coluzea naxa M.G. Harasewych, 2004 - (TURBINELLIDAE)
- naxiana, Metafruticicola naxiana (A.E.J. Férussac, 1832) - (HYGROMIIDAE)
- naxiana sublecta, Metafruticicola naxiana sublecta H. von Maltzan, 1884 - syn of: Metafruticicola sublecta (H. von Maltzan, 1884) - (HYGROMIIDAE)
- Nayadina, Genus Nayadina Munier-Chalmas, 1864 † (ELIGMIDAE) (FOSSIL)
- Nayadina, syn of: Genus Anodonta J.B.P.A. Lamarck, 1799 (UNIONIDAE)
- nayarita, Peltodoris nayarita J.A. Ortea & E.M. Llera, 1981 - syn of: Montereina greeleyi (F.M. MacFarland, 1909) - (DISCODORIDIDAE)
- nayarita, Polygyra nayarita H.A. Pilsbry & T.D.A. Cockerell, 1925 - syn of: Linisia ventrosula (L. Pfeiffer, 1845) - (POLYGYRIDAE)
- nayauana, Vatusila nayauana G.A. Solem, 1983 - (CHAROPIDAE)
- naybandensis, Risselloidea naybandensis A. Nützel & Senowbari-Daryan, 1999 † - (EUCYCLIDAE) (FOSSIL)
- naykatikus, Pseudonapaeus naykatikus A.P. Pazylov, 2001 - (ENIDAE)
- nayliesi, Frechenia nayliesi (Michaud, 1862) † - (HELICIDAE) (FOSSIL)
- naylorense, Wichitoceras naylorense Ulrich & al., 1942 † - (TROCHOLITIDAE) (FOSSIL)
- nayongense, Aphelaeceras nayongense Zheng, 1984 † - (TRIGONOCERATIDAE) (FOSSIL)
- Naytia, Genus Naytia H. Adams & A. Adams, 1853 (NASSARIIDAE)
- Naytiopsis, syn of: Genus Nassarius Duméril, 1805 (NASSARIIDAE)
- nazanensis, Oenopota nazanensis W.H. Dall, 1919 - syn of: Curtitoma lawrenciana (W.H. Dall, 1919) - (MANGELIIDAE)
- nazanensis, Lora nazanensis W.H. Dall, 1919 - syn of: Curtitoma lawrenciana (W.H. Dall, 1919) - (TURRIDAE)
- nazarena, Pycnoptychia trina nazarena C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- nazarenensis, Tetrentodon nazarenensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- nazarenoensis, Tetrentodon nazarenoensis C. de la Torre & P. Bartsch, 1972 - syn of: Tetrentodon nazarenensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- nazarina, Helix nazarina J.R. Bourguignat - syn of: Arianta arbustorum (C. Linnaeus, 1758) - (HELICIDAE)
- nazasensis, Burckhardtites nazasensis (Burckhardt, 1925 †) - (DESMOCERATIDAE) (FOSSIL)
- nazeensis, Costatoria nazeensis H. Guo, 1985 † - (MYOPHORIIDAE) (FOSSIL)
- nazikae, Torquesia nazikae Awad & Abed, 1967 † - (TURRITELLIDAE) (FOSSIL)
- ndamanyiluensis, Gulella ndamanyiluensis L.A.W.C. Venmans - (STREPTAXIDAE)
- ndukuei, Chromodoris ndukuei J.J. Risbec, 1928 - syn of: Goniobranchus decorus (W.H. Pease, 1860) - (CHROMODORIDIDAE)
- Ndumuiceras, Genus Ndumuiceras Kennedy & Klinger, 2000 (ANISOCERATIDAE) (FOSSIL)
- nea, Corbicula nea P.M. Pallary, 1909 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- neaaugustensis, Paladilhiopsis neaaugustensis P.L. Reischütz, 1988 - (MOITESSIERIIDAE)
- neacolubrinus, Nassaria neacolubrinus Noetling, 1901 † - (NASSARIIDAE) (FOSSIL)
- Neactaeonina, Genus Neactaeonina K.H.J. Thiele, 1912 (ACTEONIDAE)
- Neadmete, Genus Neadmete T. Habe, 1961 (CANCELLARIIDAE)
- Neaera, syn of: Genus Cuspidaria G.D. Nardo, 1840 (CUSPIDARIIDAE)
- neaeriformis, Nuculana neaeriformis (E.A. Smith, 1885) - (NUCULANIDAE)
- neaeroides, Cetomya neaeroides (G. Seguenza, 1877) - (POROMYIDAE)
- neaeroides, Poromya neaeroides G. Seguenza, 1877 - syn of: Cetomya neaeroides (G. Seguenza, 1877) - (POROMYIDAE)
- Neaeromya, Genus Neaeromya M. Gabe, 1873 (LASAEIDAE)
- Neaeroporomya, Genus Neaeroporomya Cossmann, 1886 † (POROMYIDAE) (FOSSIL)
- neagui, Barremitites neagui Avram, 1997 † - (BARREMITIDAE) (FOSSIL)
- nealae, Elysia nealae J.M. Ostergaard, 1955 - (PLAKOBRANCHIDAE)
- nealei, Volvarina nealei A. Wakefield & T. McCleery, 2004 - (MARGINELLIDAE)
- Nealexia, syn of: Genus Ovatella Ant. Bivona-Bernardi, 1832 (ELLOBIIDAE)
- neali, Georissa neali H.A. Pilsbry, 1928 - (HYDROCENIDAE)
- nealyoungi, Naudedrillia nealyoungi R.N. Kilburn, 1988 - (PSEUDOMELATOMIDAE)
- Neamnigenia, Genus Neamnigenia Khalfin , 1950 † (ARCHANODONTIDAE) (FOSSIL)
- Neamphitomaria, Genus Neamphitomaria Bandel, 1988 † (AMPHITOMARIIDAE) (FOSSIL)
- Neancistrolepis, Genus Neancistrolepis T. Habe & J. Sato, 1972 (BUCCINIDAE)
- Neancyloceras, Genus Neancyloceras Spath , 1926 † (DIPLOMOCERATIDAE) (FOSSIL)
- neanderthalensis, Homo neanderthalensis King, 1864 † - (Hominidae) (FOSSIL)
- neanderthalensis, Palaeoanthropus neanderthalensis King, 1864 † - syn of: Homo neanderthalensis King, 1864 † - (Hominidae) (FOSSIL)
- neanica, Taraia neanica C.M. Cooke & Y. Kondo, 1960 - (ACHATINELLIDAE)
- Neanites, Subgenus Clionitites (Neanites) Hyatt & Smith, 1905 † (CLIONITITIDAE) (FOSSIL)
- Neaplysia, Subgenus Aplysia (Neaplysia) J.G. Cooper, 1863 (APLYSIIDAE)
- neapolitana, Acanthoclymenia neapolitana (A.H. Clarke, 1892 †) - (ACANTHOCLYMENIIDAE) (FOSSIL)
- neapolitana, Spurilla neapolitana (S. Delle Chiaje, 1841) - (AEOLIDIIDAE)
- neapolitana, Amphimenia neapolitana (K.H.J. Thiele, 1889) - (AMPHIMENIIDAE)
- neapolitana, Aplysia neapolitana S. Delle Chiaje, 1824 - syn of: Aplysia fasciata J.L.M. Poiret, 1789 - (APLYSIIDAE)
- neapolitana, Armina neapolitana (S. Delle Chiaje, 1824) - (ARMINIDAE)
- neapolitana, Cyrtoclymenia neapolitana A.H. Clarke, 1892 † - syn of: Acanthoclymenia neapolitana (A.H. Clarke, 1892 †) - (CYRTOCLYMENIIDAE) (FOSSIL)
- neapolitana, Bembexia neapolitana (Whidborne, 1892 †) - (EOTOMARIIDAE) (FOSSIL)
- neapolitana, Helix neapolitana M. Paulucci, 1880 - syn of: Campylaea planospira setulosa (Briganti, 1825) - (HELICIDAE)
- neapolitana, Galba neapolitana R. Bellini, 1904 - syn of: Galba truncatula (O.F. Müller, 1774) - (LYMNAEIDAE)
- neapolitana, Mactra neapolitana G.S. Poli, 1791 - syn of: Mactra glauca I. von Born, 1778 - (MACTRIDAE)
- neapolitana, Mangelia neapolitana S. Delle Chiaje, 1841 - (MANGELIIDAE)
- neapolitana, Onchidoris neapolitana (S. Delle Chiaje, 1841) - (ONCHIDORIDIDAE)
- neapolitana, Microhedyle neapolitana L. Rankin, 1979 - syn of: Microhedyle glandulifera (A. Kowalevsky, 1901) - (PARHEDYLIDAE)
- neapolitana, Pleurotomaria neapolitana Whidborne, 1892 † - syn of: Bembexia neapolitana (Whidborne, 1892 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- neapolitana, Proneomenia neapolitana K.H.J. Thiele, 1889 - syn of: Amphimenia neapolitana (K.H.J. Thiele, 1889) - (PRONEOMENIIDAE)
- neapolitana, Raphitoma neapolitana F. Nordsieck, 1977 - syn of: Raphitoma pupoides (T.A. de M. Monterosato, 1884) - (RAPHITOMIDAE)
- neapolitana, Uncimenia neapolitana H.F. Nierstrasz, 1903 - (SIMROTHIELLIDAE)
- neapolitanus, Euomphalus neapolitanus Whidborne, 1892 † - (EUOMPHALIDAE) (FOSSIL)
- neapolitanus, Elysia neapolitanus S. Delle Chiaje, 1830 - syn of: Elysia viridis (G. Montagu, 1804) - (PLAKOBRANCHIDAE)
- nearchi, Pecten nearchi E.W. Vredenburg, 1928 † - (PECTINIDAE) (FOSSIL)
- nearcticus, Mimagoniatites nearcticus Prosh, 1987 † - (MIMAGONIATITIDAE) (FOSSIL)
- Nearctula, Genus Nearctula V. Sterki, 1892 (VERTIGINIDAE)
- Nearoporomya, syn of: Genus Neaeroporomya Cossmann, 1886 † (POROMYIDAE) (FOSSIL)
- Neaspidoceras, Genus Neaspidoceras Spath , 1931 † (ASPIDOCERATIDAE) (FOSSIL)
- neastartoides, Gomphina neastartoides (M. Yokoyama, 1922) - (VENERIDAE)
- neastartoides, Venus neastartoides M. Yokoyama, 1922 - syn of: Gomphina neastartoides (M. Yokoyama, 1922) - (VENERIDAE)
- neastriatula, Nassaria neastriatula Noetling, 1901 † - (NASSARIIDAE) (FOSSIL)
- neatodelpha, Protoceras neatodelpha Patton & Taylor, 1973 † - (CERATITIDA (UNASSIGNED)) (FOSSIL)
- neavei, Lanistes neavei J.C. Melvill & R. Standen, 1907 - (AMPULLARIIDAE)
- nebae, Aeolidia nebae J.J. Risbec, 1930 - (AEOLIDIIDAE)
- nebechense, Pseudoprobeloceras nebechense Bensaid, 1974 † - (PONTICERATIDAE) (FOSSIL)
- Nebechoceras, Genus Nebechoceras Bockwinkel, Becker & Ebbighausen, 2013 † (TORNOCERATIDAE) (FOSSIL)
- nebrascana, Oxytoma nebrascana (J. Evans & Shumard, 1857 †) - (OXYTOMIDAE) (FOSSIL)
- nebrascense, Didymoceras nebrascense (F.B. Meek & Hayden, 1856 †) - (NOSTOCERATIDAE) (FOSSIL)
- nebrascense, Orthonema nebrascense H.B. Geinitz, 1866 † - (ORTHONEMATIDAE) (FOSSIL)
- nebrascense, Tainoceras nebrascense Miller, Bunbar & Condra, 1933 † - (TAINOCERATIDAE) (FOSSIL)
- nebrascensis, Drepanocheilus nebrascensis (J. Evans & Shumard, 1854 †) - (APORRHAIDAE) (FOSSIL)
- nebrascensis, Edmondia nebrascensis H.B. Geinitz, 1866 † - (EDMONDIIDAE) (FOSSIL)
- nebrascensis, Murchisonia nebrascensis H.B. Geinitz, 1866 † - syn of: Orthonema nebrascense H.B. Geinitz, 1866 † - (MURCHISONIIDAE) (FOSSIL)
- nebrascensis, Platyceras nebrascensis F.B. Meek, 1872 † - syn of: Ueckerconulus noricus A. Nützel & Erwin, 2004 † - (PLATYCERATIDAE) (FOSSIL)
- nebrascensis, Jeletzkytes nebrascensis (B. Owen, 1852 †) - (SCAPHITIDAE) (FOSSIL)
- nebrascensis, Dosiniopsis nebrascensis F.B. Meek & Hayden, 1876 † - (VENERIDAE) (FOSSIL)
- nebraskensis, Edmondia nebraskensis H.B. Geinitz, 1866 † - syn of: Edmondia nebrascensis H.B. Geinitz, 1866 † - (EDMONDIIDAE) (FOSSIL)
- Nebraskites, Genus Nebraskites Kennedy & Cobban, 1988 † (ACANTHOCERATIDAE) (FOSSIL)
- nebrias, Strigatella nebrias J.C. Melvill, 1895 - syn of: Strigatella abacophora J.C. Melvill, 1888 - (MITRIDAE)
- nebrites, Erosaria nebrites (J.C. Melvill, 1888) - (CYPRAEIDAE)
- nebrites ceylonensis, Erosaria nebrites ceylonensis F.A. Schilder & M. Schilder, 1938 - syn of: Erosaria nebrites (J.C. Melvill, 1888) - (CYPRAEIDAE)
- nebrites ceylonica, Erosaria nebrites ceylonica F.A. Schilder & M. Schilder, 1938 - syn of: Erosaria nebrites (J.C. Melvill, 1888) - (CYPRAEIDAE)
- nebrites mozambicana, Erosaria nebrites mozambicana F.A. Schilder & M. Schilder, 1938 - syn of: Erosaria nebrites (J.C. Melvill, 1888) - (CYPRAEIDAE)
- nebrites oblonga, Erosaria nebrites oblonga J.C. Melvill, 1888 - (CYPRAEIDAE)
- nebrites subalba, Erosaria nebrites subalba J.C. Melvill, 1888 - (CYPRAEIDAE)
- nebrius, Allocoptis nebrius F.G. Thompson & C.J. Franz, 1976 - (UROCOPTIDAE)
- Nebroceras, Genus Nebroceras Zhuravleva, 1978 † (ORTHOCERIDA (UNASSIGNED)) (FOSSIL)
- nebrodensis, Ferussacia nebrodensis L. Benoit, 1862 - syn of: Ferussacia folliculus (J.S. Schröter, 1784) - (FERUSSACIIDAE)
- nebrodensis, Murella nebrodensis (E. Pirajno, 1842) - (HELICIDAE)
- nebrodensis, Marekites nebrodensis A. Fuchs & al., 2016 † - (PALAEOLOLIGINIDAE) (FOSSIL)
- nebrodensis castellana, Murella nebrodensis castellana (T.A. de M. Monterosato, 1892) - (HELICIDAE)
- nebrodensis impervia, Murella nebrodensis impervia (T.A. de M. Monterosato, 1892) - (HELICIDAE)
- nebrodensis silvestrii, Murella nebrodensis silvestrii (C. Cafici, 1885) - (HELICIDAE)
- Nebrodites, Genus Nebrodites Burckhardt, 1910 † (SIMOCERATIDAE) (FOSSIL)
- nebula, Strophiops nebula C.J. Maynard & W.F. Clapp, 1920 - (CERIONIDAE)
- nebula, Clavatula nebula G. Montagu, 1803 - syn of: Bela nebula (G. Montagu, 1803) - (CLAVATULIDAE)
- nebula, Trapania nebula T.M. Gosliner & S.J. Fahey, 2008 - (GONIODORIDIDAE)
- nebula, Bela nebula (G. Montagu, 1803) - (MANGELIIDAE)
- nebula, Bela nebula M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1883 - syn of: Bela nebula (G. Montagu, 1803) - (MANGELIIDAE)
- nebula, Bela nebula T.A. de M. Monterosato, 1872 - syn of: Bela nebula (G. Montagu, 1803) - (MANGELIIDAE)
- nebula, Bela nebula A.M. Norman, 1899 - syn of: Bela nebula (G. Montagu, 1803) - (MANGELIIDAE)
- nebula, Murex nebula G. Montagu, 1803 - syn of: Bela nebula (G. Montagu, 1803) - (MURICIDAE)
- nebula, Agaronia nebula (J.B.P.A. Lamarck, 1822) - (OLIVIDAE)
- nebula, Testudovolva nebula (M. Azuma & C.N. Cate, 1971) - (OVULIDAE)
- nebula abbreviata, Pleurotoma nebula abbreviata J.G. Jeffreys, 1867 - syn of: Bela nebula (G. Montagu, 1803) - (TURRIDAE)
- nebula delicatula, Bela nebula delicatula F.W. Harmer † - (MANGELIIDAE) (FOSSIL)
- nebula elongata, Pleurotoma nebula elongata J.G. Jeffreys, 1867 - syn of: Bela nebula (G. Montagu, 1803) - (TURRIDAE)
- nebula fasciata, Bela nebula fasciata M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1885 - (MANGELIIDAE)
- nebula fusiforme, Bela nebula fusiforme J.T. Marshall, 1893 - (MANGELIIDAE)
- nebula lactea, Mangelia nebula lactea J.G. Jeffreys, 1867 - syn of: Bela nebula (G. Montagu, 1803) - (MANGELIIDAE)
- nebula mediofascata, Bela nebula mediofascata H. von Maltzan, 1883 - (MANGELIIDAE)
- nebula minor, Pleurotoma nebula minor J.G. Jeffreys, 1867 - syn of: Bela nebula (G. Montagu, 1803) - (TURRIDAE)
- nebula oceanica, Bela nebula oceanica É.A.A. Locard, 1897 - syn of: Bela oceanica É.A.A. Locard, 1897 - (MANGELIIDAE)
- nebula ornata, Bela nebula ornata É.A.A. Locard, 1897 - (MANGELIIDAE)
- nebula pallida, Bela nebula pallida (M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1883) - (MANGELIIDAE)
- nebula rissoi, Bela nebula rissoi (É.A.A. Locard, 1886) - (MANGELIIDAE)
- nebula septenvillei, Raphitoma nebula septenvillei P. Dautzenberg, 1913 - syn of: Bela nebula (G. Montagu, 1803) - (RAPHITOMIDAE)
- nebulae, Cyrtokolymia nebulae (Kulikov, 1967 †) - (KOLYMIIDAE) (FOSSIL)
- Nebularia, Subgenus Mitra (Nebularia) W.J. Swainson, 1840 (MITRIDAE)
- nebulata, Crepidula nebulata J.F. Mabille, 1895 - syn of: Crepidula nivea C.B. Adams, 1852 - (CALYPTRAEIDAE)
- nebulata, Haliotis nebulata L.A. Reeve, 1846 - syn of: Haliotis rugosa J.B.P.A. Lamarck, 1822 - (HALIOTIDAE)
- nebulata, Discula polymorpha nebulata R.T. Lowe, 1855 - (HYGROMIIDAE)
- nebulodermata, Amaea nebulodermata (M. Azuma, 1972) - (EPITONIIDAE)
- nebulodermata, Acrilla nebulodermata M. Azuma, 1972 - syn of: Amaea nebulodermata (M. Azuma, 1972) - (EPITONIIDAE)
- nebulonis, Nassaria nebulonis K. Fraussen, B. Dharma & P. Stahlschmidt, 2009 - (NASSARIIDAE)
- nebulosa, Amastra nebulosa J.W. Mighels, 1845 - syn of: Amastra nubilosa (J.W. Mighels, 1845) - (AMASTRIDAE)
- nebulosa, Ancilla nebulosa D.C. Solander, 1786 - syn of: Anolacia mauritiana (G.B. I Sowerby, 1830) - (ANCILLARIIDAE)
- nebulosa, Omphalotropis nebulosa Delsaerdt, 2016 - (ASSIMINEIDAE)
- nebulosa, Omphalotropis nebulosa W.H. Pease, 1872 - (ASSIMINEIDAE)
- nebulosa, Biloclymenia nebulosa Czarnocki, 1989 † - (BILOCLYMENIIDAE) (FOSSIL)
- nebulosa, Caducifer nebulosa A.A. Gould, 1860 - syn of: Zafrona isomella nebulosa (A.A. Gould, 1860) - (BUCCINIDAE)
- nebulosa, Bulla nebulosa C.B. Adams, 1850 - syn of: Bulla gouldiana H.A. Pilsbry, 1895 - (BULLIDAE)
- nebulosa, Bulla nebulosa Auct. non A. Adams, 1850 - syn of: Bulla occidentalis A. Adams, 1850 - (BULLIDAE)
- nebulosa, Vasticardium nebulosa T. Martyn, 1786 - syn of: Vasticardium elongatum (J.G. Bruguière, 1789) - (CARDIIDAE)
- nebulosa, Cavolinia nebulosa G.B. Sowerby, 1877 - syn of: Cavolinia tridentata (P. Forsskål in C. Niebuhr, 1775) - (CAVOLINIIDAE)
- nebulosa, Columbella nebulosa A.A. Gould, 1860 - syn of: Zafrona isomella nebulosa (A.A. Gould, 1860) - (COLUMBELLIDAE)
- nebulosa, Zafrona isomella nebulosa (A.A. Gould, 1860) - (COLUMBELLIDAE)
- nebulosa, Coronaxis nebulosa W.J. Swainson, 1840 - syn of: Gastridium tulipa (C. Linnaeus, 1758) - (CONIDAE)
- nebulosa, Cystiscus nebulosa A. Wakefield & T. McCleery, 2005 - (CYSTISCIDAE)
- nebulosa, Gibberula nebulosa F. Boyer, 2002 - (CYSTISCIDAE)
- nebulosa, Dendrodoris nebulosa W.H. Pease, 1860 - syn of: Dendrodoris nigra (W. Stimpson, 1855) - (DENDRODORIDIDAE)
- nebulosa, Eglisia nebulosa W.H. Dall, 1919 - syn of: Amaea brunneopicta (W.H. Dall, 1908) - (EPITONIIDAE)
- nebulosa, Murella globularis nebulosa (T.A. de M. Monterosato, 1892) - (HELICIDAE)
- nebulosa, Littoraria nebulosa (J.B.P.A. Lamarck, 1822) - (LITTORINIDAE)
- nebulosa, Schafhaeutlia nebulosa Kurushin, 1992 † - (LUCINIDAE) (FOSSIL)
- nebulosa, Mactra nebulosa J.B.G.M. Bory De Saint-Vincent, 1827 - syn of: Mactra maculata J.F. Gmelin, 1791 - (MACTRIDAE)
- nebulosa, Marginella nebulosa (P.F. Röding, 1798) - (MARGINELLIDAE)
- nebulosa, Pterygia nebulosa P.F. Röding, 1798 - syn of: Marginella nebulosa (P.F. Röding, 1798) - (MITRIDAE)
- nebulosa, Mitra nebulosa W.J. Broderip, 1836 - syn of: Nebularia contracta (W.J. Swainson, 1820) - (MITRIDAE)
- nebulosa, Mitra nebulosa L.A. Reeve, 1844 - syn of: Mitra nubila (J.F. Gmelin, 1791) - (MITRIDAE)
- nebulosa, Purpura nebulosa T.A. Conrad, 1867 - syn of: Stramonita haemastoma (C. Linnaeus, 1767) - (MURICIDAE)
- nebulosa, Limnoperna nebulosa J.E. Tenison-Woods, 1876 - syn of: Xenostrobus inconstans (R.W. Dunker, 1856) - (MYTILIDAE)
- nebulosa, Natica nebulosa M.M. Schepman, 1909 - syn of: Notocochlis cernica (F.P. Jousseaume, 1874) - (NATICIDAE)
- nebulosa, Eccliseogyra nebulosa W.H. Dall, 1919 - syn of: Amaea brunneopicta (W.H. Dall, 1908) - (NYSTIELLIDAE)
- nebulosa, Agaronia nebulosa (J.B.P.A. Lamarck, 1822) - (OLIVIDAE)
- nebulosa, Oliva annulata nebulosa P. Dautzenberg, 1927 - (OLIVIDAE)
- nebulosa, Ariostralis nebulosa W.F. Sirgel, 1985 - (OOPELTIDAE)
- nebulosa, Ostrea nebulosa G.S. Poli, 1795 - syn of: Flexopecten glaber (C. Linnaeus, 1758) - (OSTREIDAE)
- nebulosa, Ostrea nebulosa J.F. Gmelin, 1791 - syn of: Flexopecten glaber (C. Linnaeus, 1758) - (OSTREIDAE)
- nebulosa, Chlamys nebulosa G.S. Poli, 1795 - syn of: Flexopecten glaber (C. Linnaeus, 1758) - (PECTINIDAE)
- nebulosa, Chondrothyra rutila nebulosa C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- nebulosa, Gari nebulosa P.F. Röding, 1798 - syn of: Gari fervensis (J.F. Gmelin, 1791) - (PSAMMOBIIDAE)
- nebulosa, Pseudodaphnella nebulosa (W.H. Pease, 1860) - (RAPHITOMIDAE)
- nebulosa, Streptostyla nebulosa W.H. Dall, 1896 - (SPIRAXIDAE)
- nebulosa, Tellina nebulosa P.F. Röding, 1798 - syn of: Gari fervensis (J.F. Gmelin, 1791) - (TELLINIDAE)
- nebulosa, Myurella nebulosa (G.B. I Sowerby, 1825) - (TEREBRIDAE)
- nebulosa, Terebra nebulosa G.B. I Sowerby, 1825 - syn of: Myurella nebulosa (G.B. I Sowerby, 1825) - (TEREBRIDAE)
- nebulosa, Terebra nebulosa E.L. Lorois, 1858 - syn of: Terebra guttata (P.F. Röding, 1798) - (TEREBRIDAE)
- nebulosa, Terebra nebulosa L.C. Kiener, 1839 - syn of: Terebra argus R.B. Hinds, 1844 - (TEREBRIDAE)
- nebulosa, Stomatella nebulosa (A. Adams, 1850) - (TROCHIDAE)
- nebulosa, Monodonta nebulosa (P. Forsskål in C. Niebuhr, 1775) - (TROCHIDAE)
- nebulosa, Gibbula nebulosa R.A. Philippi, 1848 - syn of: Gibbula umbilicaris nebulosa (R.A. Philippi, 1848) - (TROCHIDAE)
- nebulosa, Gibbula umbilicaris nebulosa (R.A. Philippi, 1848) - (TROCHIDAE)
- nebulosa, Turritella nebulosa L.C. Kiener, 1843 - (TURRITELLIDAE)
- nebulosa, Villosa nebulosa (T.A. Conrad, 1834) - (UNIONIDAE)
- nebulosa, Venus nebulosa J.F. Gmelin, 1791 - syn of: Marcia opima (J.F. Gmelin, 1791) - (VENERIDAE)
- nebulosa, Serpula nebulosa L.W. Dillwyn, 1817 - syn of: Dendropoma nebulosum (L.W. Dillwyn, 1817) - (VERMETIDAE)
- nebulosa, Voluta nebulosa J.B.P.A. Lamarck, 1811 - syn of: Voluta musica C. Linnaeus, 1758 - (VOLUTIDAE)
- nebulosa abyssinebulosa, Marginella nebulosa abyssinebulosa W. Massier, 2004 - (MARGINELLIDAE)
- nebulosa guppyi, Omphalotropis nebulosa guppyi W.J. Clench, 1958 - (ASSIMINEIDAE)
- nebulosa parva, Gibbula nebulosa parva P.M. Pallary, 1938 - syn of: Gibbula umbilicaris (C. Linnaeus, 1758) - (TROCHIDAE)
- nebulosum, Caecum nebulosum H.A. Rehder, 1943 - syn of: Meioceras cornucopiae P.P. Carpenter, 1859 - (CAECIDAE)
- nebulosum, Cardium nebulosum L.A. Reeve, 1845 - syn of: Acrosterigma simplex (L. Spengler, 1799) - (CARDIIDAE)
- nebulosum, Onchidium nebulosum C.G. Semper, 1885 - (ONCHIDIIDAE)
- nebulosum, Terebellum terebellum nebulosum P.F. Röding, 1798 - (SERAPHSIDAE)
- nebulosum, Dendropoma nebulosum (L.W. Dillwyn, 1817) - (VERMETIDAE)
- nebulosus, Drymaeus chiapensis nebulosus E.C. Von Martens, 1893 - (BULIMULIDAE)
- nebulosus, Conus nebulosus J.F. Gmelin, 1791 - syn of: Pionoconus monachus (C. Linnaeus, 1758) - (CONIDAE)
- nebulosus, Rhizoconus nebulosus M. Azuma, 1973 - syn of: Graphiconus kiicumulus (M. Azuma, 1982) - (CONIDAE)
- nebulosus, Conus nebulosus C.H. Hwass in J.G. Bruguière, 1792 - syn of: Stephanoconus regius (J.F. Gmelin, 1791) - (CONIDAE)
- nebulosus, Hexabranchus nebulosus W.H. Pease, 1860 - syn of: Dendrodoris nigra (W. Stimpson, 1855) - (HEXABRANCHIDAE)
- nebulosus, Liguus fasciatus nebulosus A. Doe, 1937 - (ORTHALICIDAE)
- nebulosus, Pecten nebulosus T. Brown, 1835 - syn of: Pseudamussium peslutrae (C. Linnaeus, 1771) - (PECTINIDAE)
- nebulosus, Semelangulus nebulosus W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (TELLINIDAE)
- nebulosus, Turbo nebulosus P. Forsskål in C. Niebuhr, 1775 - syn of: Monodonta nebulosa (P. Forsskål in C. Niebuhr, 1775) - (TURBINIDAE)
- nebuloza, Anazola nebuloza (J.B.P.A. Lamarck, 1811 †) - (OLIVIDAE) (FOSSIL)
- Necaxa, Subgenus Shasicheila (Necaxa) F.C. Baker, 1928 (HELICINIDAE)
- necaxanus, Mesembrinus necaxanus G.A. Solem, 1955 - (BULIMULIDAE)
- Necaxia, Subgenus Schasicheila (Necaxia) F.C. Baker, 1928 (HELICINIDAE)
- neckeri, Tornatellides neckeri C.M. Cooke & Y. Kondo, 1960 - (ACHATINELLIDAE)
- neckerianum, Cymatoceras neckerianum Picete, 1947 † - (CYMATOCERATIDAE) (FOSSIL)
- Necklandia, Genus Necklandia † (PRAECARDIOIDEA (UNASSIGNED)) (FOSSIL)
- Necklania, Genus Necklania Ruzicka & Prybyl 1953 (ANTIPLEURIDAE) (FOSSIL)
- necnivosus, Turbo necnivosus T. Iredale, 1929 - syn of: Turbo smithi G.B. III Sowerby, 1886 - (TURBINIDAE)
- necocheana, Muricopsis necocheana (H.A. Pilsbry, 1900) - (MURICIDAE)
- necocheanum, Trophon necocheanum H.F.A. von Ihering, 1907 - syn of: Trophon patagonicus (Sowerby, 1846) - (MURICIDAE)
- necopinata, Cominella necopinata (H.J. Finlay, 1930) - (BUCCINIDAE)
- necopinata, Spinoseila necopinata P.A. Maxwell, 1992 † - (CERITHIOPSIDAE) (FOSSIL)
- necopinata, Amoria necopinata T.A. Darragh, 1983 - (VOLUTIDAE)
- necopinata, Athleta necopinata H.H. Suter, 1917 † - (VOLUTIDAE) (FOSSIL)
- necopinatum, Calliostoma necopinatum B.A. Marshall, 1995 - (CALLIOSTOMATIDAE)
- necopinatum, Ukhtoceras necopinatum P.A. Zhuravleva, 1972 † - syn of: Ukhtoceras uchtense (Holzapfel, 1899 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- necopinatum, Adamussium necopinatum Quilty & al., 2016 † - (PECTINIDAE) (FOSSIL)
- necopinatus, Fruticicola necopinatus L. Tsvetkov, 1941 - (BRADYBAENIDAE)
- necopinatus, Radulphus necopinatus H.J. Finlay, 1930 - syn of: Cominella necopinata (H.J. Finlay, 1930) - (NASSARIIDAE)
- necopium, Chondropoma necopium P. Bartsch, 1946 - syn of: Chondropoma hjalmarsoni L. Pfeiffer, 1858 - (POMATIIDAE)
- Necopupina, Subgenus Hedleya (Necopupina) T. Iredale, 1937 (PUPINIDAE)
- necostatus, Antiguraleus necostatus R.N. Kilburn, 1994 - (MANGELIIDAE)
- necouensis, Placostylus necouensis J. Gassies, 1871 - syn of: Placostylus fibratus alexander (J.C.H. Crosse, 1855) - (BOTHRIEMBRYONTIDAE)
- necouensis, Bulimus necouensis J. Gassies, 1871 - syn of: Placostylus fibratus alexander (J.C.H. Crosse, 1855) - (BULIMULIDAE)
- necra, Carelia necra C.M. Cooke, 1931 - (AMASTRIDAE)
- necra spaldingi, Carelia necra spaldingi C.M. Cooke, 1931 - (AMASTRIDAE)
- necrodes, Varicella necrodes H.B. Baker, 1935 - (OLEACINIDAE)
- Necromantes, syn of: Genus Tritonia G.L.C.F.D. Cuvier, 1798 (TRITONIIDAE)
- necrophaga, Hyalogyra necrophaga F. Rubio, E. Rolán & Femándes, 1992 - (HYALOGYRINIDAE)
- necropolitana, Cerithiopsina necropolitana (P. Bartsch, 1911 †) - (CERITHIOPSIDAE) (FOSSIL)
- NECROTEUTHIDAE - syn of Family: NECROTEUTHIDIDAE (FOSSIL)
- NECROTEUTHIDIDAE Kretzoi, 1942 † - Family (CEPHALOPODA-COLEOIDEA [Subclass]-DECAPODIFORMES [Superorder]-LOLIGOSEPIIDA [Order]) (FOSSIL)
- Necroteuthis, Genus Necroteuthis Kretzoi, 1942 † (NECROTEUTHIDIDAE) (FOSSIL)
- nectarea, Phenacovolva nectarea T. Iredale, 1930 - (OVULIDAE)
- nectarea, Terebra nectarea J.C. Melvill & R. Standen, 1895 - (TEREBRIDAE)
- Nectophyllirhoe, syn of: Genus Cephalopyge E. Hanel, 1905 (PHYLLIROIDAE)
- Nectoteuthis, Genus Nectoteuthis A.E. Verrill, 1883 (SEPIOLIDAE)
- Necvidena, Genus Necvidena T. Iredale, 1941 (CAMAENIDAE)
- neda, Nucula neda J.W. Hall & R.P. Whitfield, 1872 † - syn of: Nuculoidea corbuliformis (J.W. Hall & R.P. Whitfield, 1869 †) - (NUCULIDAE) (FOSSIL)
- Neda, syn of: Genus Euselenops H.A. Pilsbry, 1896 (PLEUROBRANCHAEIDAE)
- nedae, Angulofusus nedae A.E. Fedosov & Y.I. Kantor, 2012 - (FASCIOLARIIDAE)
- nedallisoni, Polyschides nedallisoni (W.K. Emerson, 1978) - (GADILIDAE)
- nedici, Gyraulus nedici (Š. Brusina, 1902) - (PLANORBIDAE)
- nedigna, Dosinia nedigna (T. Iredale, 1930) - (VENERIDAE)
- nedulina, Oliva undatella nedulina P.L. Duclos, 1835 - (OLIVIDAE)
- nedyalkovi, Gyraulus nedyalkovi P. Glöer & D.G. Georgiev, 2012 - (PLANORBIDAE)
- nedyma, Minolia nedyma J.C. Melvill, 1897 - syn of: Pseudominolia nedyma (J.C. Melvill, 1897) - (SOLARIELLIDAE)
- nedyma, Pseudominolia nedyma (J.C. Melvill, 1897) - (TROCHIDAE)
- neebiana, Alcadia neebiana (L. Pfeiffer, 1862) - (HELICINIDAE)
- needhami, Thermalites needhami Tozer, 1963 † - (HALORITIDAE) (FOSSIL)
- needlensis, Bellerophon needlensis W.J. Gordon & E.L. Yochelson, 1987 † - (BELLEROPHONTIDAE) (FOSSIL)
- neerlandica, Architectonica neerlandica G. Spaink, 1968 - (ARCHITECTONICIDAE)
- neerlandica, Astarte neerlandica G. Spaink, 1974 - (ASTARTIDAE)
- neerrepenensis, Raphitoma neerrepenensis R. Marquet, Lenaerts & Laporte, 2016 † - (RAPHITOMIDAE) (FOSSIL)
- nefaria, Alopia canescens nefaria M. von Kimakowicz, 1894 - (CLAUSILIIDAE)
- nefasta, Alopia nefasta (M. von Kimakowicz, 1894) - (CLAUSILIIDAE)
- nefasta ciucasiana, Alopia nefasta ciucasiana A.V. Grossu, 1969 - (CLAUSILIIDAE)
- nefasta helenae, Alopia nefasta helenae (R. von Kimakowicz, 1928) - (CLAUSILIIDAE)
- nefasta interjecta, Alopia nefasta interjecta H. Nordsieck, 1984 - (CLAUSILIIDAE)
- nefasta mauritii, Alopia nefasta mauritii R. Kimakowicz, 1928 - (CLAUSILIIDAE)
- nefertitae, Microspira nefertitae Abbass, 1967 † - (MARGINELLIDAE) (FOSSIL)
- nefrens, Diplommatina maduana nefrens J.J. Vermeulen, 1993 - (DIPLOMMATINIDAE)
- nefrens, Chesapecten nefrens Ward & Blackwlder, 1975 † - (PECTINIDAE) (FOSSIL)
- negama, Cymatoceras negama (Blanford, 1861 †) - (CYMATOCERATIDAE) (FOSSIL)
- negata, Arca negata B.C. Cotton, 1947 † - (ARCIDAE) (FOSSIL)
- Negebites, Genus Negebites Parnes, 1962 † (HUNGARITIDAE) (FOSSIL)
- negevensis, Buliminus negevensis J. Heller, 1970 - (ENIDAE)
- negevi, Nerinella negevi Reiner, 1968 † - (NERINELLIDAE) (FOSSIL)
- negiae, Allodiscus negiae B.A. Marshall & G.M. Barker, 2008 - (CHAROPIDAE)
- neglecta, Aclis neglecta A.W. Janssen, 1969 - (ACLIDIDAE)
- neglecta, Acmaea neglecta M.M. Schepman, 1908 - (ACMAEIDAE)
- neglecta, Aeolis neglecta S.L. Lovén, 1846 - syn of: Tergipes tergipes (P. Forsskål in C. Niebuhr, 1775) - (AEOLIDIIDAE)
- neglecta, Amastra neglecta H.A. Pilsbry & C.M. Cooke, 1914 - (AMASTRIDAE)
- neglecta, Angaria neglecta G.T. Poppe & Y. Goto, 1993 - (ANGARIIDAE)
- neglecta, Dimorphosoma neglecta R. Tate † - (APORRHAIDAE) (FOSSIL)
- neglecta, Euplecta neglecta (L. Pfeiffer, 1854) - (ARIOPHANTIDAE)
- neglecta, Pollia neglecta G.B. III Sowerby, 1894 - syn of: Orania gaskelli (J.C. Melvill, 1891) - (BUCCINIDAE)
- neglecta, Tritonidea neglecta G.B. III Sowerby, 1894 - syn of: Orania gaskelli (J.C. Melvill, 1891) - (BUCCINIDAE)
- neglecta, Bufonaria neglecta G.B. II Sowerby, 1842 - syn of: Bufonaria margaritula (G.P. Deshayes, 1832) - (BURSIDAE)
- neglecta, Cretadmete neglecta Blagovetshenskiy & Shumilkin, 2006 † - (CANCELLARIIDAE) (FOSSIL)
- neglecta, Cancellaria neglecta K. Martin, 1879 † - syn of: Bivetia martini A.E.M. Cossmann, 1899 † - (CANCELLARIIDAE) (FOSSIL)
- neglecta, Venericardia laurae neglecta O.G. Michelotti † - (CARDITIDAE) (FOSSIL)
- neglecta, Cypraecassis neglecta A.H. Verrill, 1949 - syn of: Cypraecassis testiculus (C. Linnaeus, 1758) - (CASSIDAE)
- neglecta, Strophiops neglecta C.J. Maynard, 1894 - (CERIONIDAE)
- neglecta, Cerithiopsis neglecta (C.B. Adams, 1852) - (CERITHIOPSIDAE)
- neglecta, Charopa neglecta J.W. Brazier, 1871 - syn of: Planilaoma luckmanii (J.W. Brazier, 1877) - (CHAROPIDAE)
- neglecta, Glossodoris neglecta C.G. Ehrenberg, MS - syn of: Glossodoris brachyphylla (C.G. Ehrenberg, 1831) - (CHROMODORIDIDAE)
- neglecta, Cima neglecta (A.W. Janssen, 1969 †) - (CIMIDAE) (FOSSIL)
- neglecta, Glyphostoma neglecta (R.B. Hinds, 1843) - (CLATHURELLIDAE)
- neglecta, Herilla ziegleri neglecta (K. Brancsik, 1888) - (CLAUSILIIDAE)
- Neglecta, Subgenus Cochlostoma (Neglecta) A.J. Wagner, 1897 (COCHLOSTOMATIDAE)
- neglecta, Bistolida hirundo neglecta (J.E. Gray in G.B. II Sowerby, 1832) - (CYPRAEIDAE)
- neglecta, Cyrenorita neglecta (Nsyt, 1836 †) - (CYRENIDAE) (FOSSIL)
- neglecta, Sinuitopsis neglecta J. Perner, 1903 † - (CYRTOLITIDAE) (FOSSIL)
- neglecta, Pythiopsis neglecta (G.P. Deshayes, 1863 †) - (ELLOBIIDAE) (FOSSIL)
- neglecta, Euchondria neglecta (H.B. Geinitz, 1866 †) - (EUCHONDRIIDAE) (FOSSIL)
- neglecta, Peristernia neglecta (A. Adams, 1854) - (FASCIOLARIIDAE)
- neglecta, Diodora neglecta Auct. non G.P. Deshayes, 1830 - syn of: Diodora graeca (C. Linnaeus, 1758) - (FISSURELLIDAE)
- neglecta, Fissurella neglecta G.P. Deshayes, 1830 - syn of: Diodora italica (J.L.M. Defrance, 1820) - (FISSURELLIDAE)
- neglecta, Cuneamya neglecta J.W. Hall & R.P. Whitfield, 1875 † - (GRAMMYSIIDAE) (FOSSIL)
- neglecta, Haliotis neglecta R.A. Philippi, 1848 - syn of: Haliotis stomatiaeformis L.A. Reeve, 1846 - (HALIOTIDAE)
- neglecta, Helix neglecta J.P.R. Draparnaud - (HELICIDAE)
- neglecta, Helix neglecta J.W. Brazier, 1871 - syn of: Planilaoma luckmanii (J.W. Brazier, 1877) - (HELICIDAE)
- neglecta, Sonorella neglecta W.O. Gregg, 1951 - (HELMINTHOGLYPTIDAE)
- neglecta, Obrovia neglecta B.J. Muus, 1963 - syn of: Hydrobia acuta neglecta B.J. Muus, 1963 - (HYDROBIIDAE)
- neglecta, Hydrobia neglecta B.J. Muus, 1963 - syn of: Hydrobia acuta neglecta B.J. Muus, 1963 - (HYDROBIIDAE)
- neglecta, Hydrobia acuta neglecta B.J. Muus, 1963 - (HYDROBIIDAE)
- neglecta, Cernuella neglecta (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- neglecta, Cernuella neglecta M.R. Alonso, 1975 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- neglecta, Littorina saxatilis neglecta W.I. Bean, 1844 - (LITTORINIDAE)
- neglecta, Pillucina neglecta T. Habe, 1960 - (LUCINIDAE)
- neglecta, Lucina neglecta A.E. Ortmann, 1902 † - (LUCINIDAE) (FOSSIL)
- neglecta, Agathotoma neglecta (C.B. Adams, 1852) - (MANGELIIDAE)
- neglecta, Dentimargo neglecta (G.B. I Sowerby, 1846) - (MARGINELLIDAE)
- neglecta, Marginella neglecta G.B. I Sowerby, 1846 - syn of: Dentimargo neglecta (G.B. I Sowerby, 1846) - (MARGINELLIDAE)
- neglecta, Hormotoma neglecta (Ulrich & Scofield, 1897 †) - (MURCHISONIIDAE) (FOSSIL)
- neglecta, Michelia neglecta Ulrich & Scofield, 1897 † - syn of: Hormotoma neglecta (Ulrich & Scofield, 1897 †) - (MURCHISONIIDAE) (FOSSIL)
- neglecta, Phyllocoma neglecta T. Habe & S. Kosuge, 1971 - syn of: Dermomurex neglectus T. Habe & S. Kosuge, 1971 - (MURICIDAE)
- neglecta, Purpura neglecta G.F. Angas, 1867 - syn of: Phycothais botanica (C. Hedley, 1918) - (MURICIDAE)
- neglecta, Cochlis neglecta (C. Mayer, 1858 †) - (NATICIDAE) (FOSSIL)
- neglecta, Nerinea neglecta Stoppani, 1858 † - syn of: Promathildia evanescens (Stoppani, 1858 †) - (NERINEIDAE) (FOSSIL)
- neglecta, Neritina neglecta (W.H. Pease, 1861) - (NERITIDAE)
- neglecta, Oleacina neglecta B. Klika, 1891 † - syn of: Pseudoleacina oligostropha (A.E. Reuss in A.E. Reuss & Meyer, 1849 †) - (OLEACINIDAE) (FOSSIL)
- neglecta, Liostrea neglecta (O.G. Michelotti, 1847 †) - (OSTREIDAE) (FOSSIL)
- neglecta, Ortizius neglecta P. Fagot, 1896 - syn of: Ortizius navarricus (J.R. Bourguignat, 1870) - (OXYCHILIDAE)
- neglecta, Palaeomutela neglecta (Jones †) - (PALAEOMUTELIDAE) (FOSSIL)
- neglecta, Patella neglecta J.E. Gray, 1826 - syn of: Scutellastra laticostata (H.M.D. de Blainville, 1825) - (PATELLIDAE)
- neglecta, Lotzia neglecta (B. Phillips, 1841 †) - (PLATYCERATIDAE) (FOSSIL)
- neglecta, Pleurotomaria neglecta Girty, 1909 † - (PLEUROTOMARIIDAE) (FOSSIL)
- neglecta, Triodopsis neglecta H.A. Pilsbry, 1899 - (POLYGYRIDAE)
- neglecta, Vitrea neglecta S. Damjanov & I. Pintér, 1969 - (PRISTILOMATIDAE)
- neglecta, Psammobia neglecta G.P. Deshayes, 1857 † - (PSAMMOBIIDAE) (FOSSIL)
- neglecta, Syrnola neglecta E. Saurin, 1959 - (PYRAMIDELLIDAE)
- neglecta, Odostomia neglecta N. Tiberi, 1868 - syn of: Ondina vitrea (Š. Brusina, 1866) - (PYRAMIDELLIDAE)
- neglecta, Ranella neglecta G.B. II Sowerby, 1836 - syn of: Bufonaria margaritula (G.P. Deshayes, 1832) - (RANELLIDAE)
- neglecta, Rissoa neglecta W.H. Turton, 1932 - syn of: Amphithalamus neglectus (W.H. Turton, 1932) - (RISSOIDAE)
- neglecta, Rissoa variabilis neglecta É.A.A. Locard, 1886 - (RISSOIDAE)
- neglecta, Wilkingia neglecta (Girty, 1915 †) - (SANGUINOLITIDAE) (FOSSIL)
- neglecta, Sepietta neglecta A. Naef, 1916 - (SEPIOLIDAE)
- neglecta, Glessula neglecta G.P.L.K. Gude - (SUBULINIDAE)
- neglecta, Cinguloterebra neglecta G.T. Poppe, S.P. Tagaro & Y. Terryn, 2009 - (TEREBRIDAE)
- neglecta, Terebra acuminata neglecta O.G. Michelotti, 1847 † - (TEREBRIDAE) (FOSSIL)
- neglecta, Triviella neglecta F.A. Schilder, 1930 - (TRIVIIDAE)
- neglecta, Lophiotoma neglecta L.A. Reeve, 1842 - syn of: Lophiotoma indica (P.F. Röding, 1798) - (TURRIDAE)
- neglecta, Valvata neglecta Š. Brusina, 1902 † - (VALVATIDAE) (FOSSIL)
- neglecta, Venus neglecta G.B. I Sowerby, 1835 - syn of: Chione undatella neglecta (G.B. I Sowerby, 1835) - (VENERIDAE)
- neglecta, Venus neglecta R.A. Philippi, 1844 - syn of: Leukoma grata (T. Say, 1831) - (VENERIDAE)
- neglecta, Chione undatella neglecta (G.B. I Sowerby, 1835) - (VENERIDAE)
- neglecta, Vertigo neglecta R. Arango in F. Poey, 1856 - (VERTIGINIDAE)
- neglecta agava, Strophiops neglecta agava C.J. Maynard, 1913 - (CERIONIDAE)
- neglecta clara, Dentimargo neglecta clara K.H.J. Thiele, 1925 - syn of: Dentimargo clara K.H.J. Thiele, 1925 - (MARGINELLIDAE)
- neglecta transgrediens, Sinuitopsis neglecta transgrediens J. Perner, 1903 † - (CYRTOLITIDAE) (FOSSIL)
- Neglectiana, syn of: Subgenus Cochlostoma (Obscurella) S. Clessin, 1889 (COCHLOSTOMATIDAE)
- neglectissima, Falniowskia neglectissima (A. Falniowski & J. Steffek, 1989) - (HYDROBIIDAE)
- neglectoides, Alcithoe neglectoides T.A. Darragh, 1988 † - (VOLUTIDAE) (FOSSIL)
- neglectum, Cerithium neglectum G.B. II Sowerby, 1856 - syn of: Dizoniopsis coppolae (A. Aradas, 1870) - (CERITHIIDAE)
- neglectum, Gagaticeras neglectum (C.T. Simpson †) - (ECHIOCERATIDAE) (FOSSIL)
- neglectum, Epitonium neglectum A. Adams & L.A. Reeve, 1850 - syn of: Epitonium pallasi neglectum (A. Adams & L.A. Reeve, 1850) - (EPITONIIDAE)
- neglectum, Epitonium pallasi neglectum (A. Adams & L.A. Reeve, 1850) - (EPITONIIDAE)
- neglectum, Mandaloceras neglectum (C.H. Blake †) - (MANDALOCERATIDAE) (FOSSIL)
- neglectum, Ovulum neglectum L.A. Reeve, 1865 - syn of: Simnia arcuata (L.A. Reeve, 1865) - (OVULIDAE)
- neglectum, Pinacoceras neglectum Mojsisovics, 1873 † - syn of: Protoplatytes neglectus (Mojsisovics, 1873 †) - (PINACOCERATIDAE) (FOSSIL)
- neglectum, Chondropoma neglectum (J. Gundlach in L. Pfeiffer, 1856) - (POMATIIDAE)
- neglectum, Pisidium neglectum V. Sterki, 1906 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- neglectum, Oligostylus neglectum (J.C.H. Crosse & P.H. Fischer, 1872) - (UROCOPTIDAE)
- neglectum corpulentum, Pisidium neglectum corpulentum V. Sterki, 1906 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- neglectus, Apex neglectus E.A. Smith - syn of: Achatinella swiftii W. Newcomb - (ACHATINELLIDAE)
- neglectus, Amphithalamus neglectus (W.H. Turton, 1932) - (ANABATHRIDAE)
- neglectus, Sellanarcestes neglectus (Barrande, 1865 †) - (ANARCESTIDAE) (FOSSIL)
- neglectus, Bulimus neglectus L. Pfeiffer, 1847 - syn of: Bahiensis neglectus (L. Pfeiffer, 1847) - (BULIMULIDAE)
- neglectus, Capulus ungaricus neglectus (O.G. Michelotti, 1847 †) - (CAPULIDAE) (FOSSIL)
- neglectus, Onithochiton neglectus A. de Rochebrune, 1881 - (CHITONIDAE)
- neglectus, Obscurella neglectus P. Fagot, 1891 - syn of: Cochlostoma obscurum (J.P.R. Draparnaud, 1801) - (COCHLOSTOMATIDAE)
- neglectus, Conus neglectus W.H. Pease, 1861 - syn of: Virgiconus flavidus (J.B.P.A. Lamarck, 1810) - (CONIDAE)
- neglectus, Conus neglectus A. Adams, 1855 - syn of: Floraconus aplustre (L.A. Reeve, 1843) - (CONIDAE)
- neglectus, Goniatites neglectus Barrande, 1865 † - syn of: Sellanarcestes neglectus (Barrande, 1865 †) - (GONIATITIDAE) (FOSSIL)
- neglectus, Protoplatytes neglectus (Mojsisovics, 1873 †) - (GYMNITIDAE) (FOSSIL)
- neglectus, Atys neglectus H.B. Preston, 1908 - (HAMINOEIDAE)
- neglectus, Euhoplites neglectus Milbourne † - (HOPLITIDAE) (FOSSIL)
- neglectus, Loripes dentatus neglectus (B. de Basterot, 1825) † - (LUCINIDAE) (FOSSIL)
- neglectus, Nuculites neglectus (J.W. Hall, 1862 †) - (MALLETIIDAE) (FOSSIL)
- neglectus, Coelocaulus neglectus Ulrich & Scofield, 1897 † - syn of: Hormotoma neglecta (Ulrich & Scofield, 1897 †) - (MURCHISONIIDAE) (FOSSIL)
- neglectus, Dermomurex neglectus T. Habe & S. Kosuge, 1971 - (MURICIDAE)
- neglectus, Modiolatus neglectus (T. Soot-Ryen, 1955) - (MYTILIDAE)
- neglectus, Musculus neglectus J.T. Kuroda, 1941 - syn of: Musculus cupreus (A.A. Gould, 1861) - (MYTILIDAE)
- neglectus, Clidophorus neglectus J.W. Hall, 1862 † - syn of: Nuculites neglectus (J.W. Hall, 1862 †) - (NUCULANIDAE) (FOSSIL)
- neglectus, Amphioctopus neglectus (A. Nateewathana & M.D. Norman, 1999) - (OCTOPODIDAE)
- neglectus, Bahiensis neglectus (L. Pfeiffer, 1847) - (ODONTOSTOMIDAE)
- neglectus, Trochus neglectus Martin, 1905 † - (TROCHIDAE) (FOSSIL)
- neglectus, Turbo neglectus B. Phillips, 1841 † - syn of: Lotzia neglecta (B. Phillips, 1841 †) - (TURBINIDAE) (FOSSIL)
- neglectus, Unio neglectus G.B. Sowerby, 1868 - syn of: Unio abbevillensis I. Lea, 1857 - (UNIONIDAE)
- neglectus, Unio neglectus I. Lea, 1843 - syn of: Lasmigona subviridis (T.A. Conrad, 1835) - (UNIONIDAE)
- neglectus subantarcticus, Onithochiton neglectus subantarcticus H.H. Suter, 1907 - (CHITONIDAE)
- negligens, Pseudosubulina irregularis negligens (H.B. Baker, 1939) - (SPIRAXIDAE)
- negoi, Prunum negoi T. Cossignani, 2005 - (MARGINELLIDAE)
- Negopenia, syn of: Genus Ceratopoma O.F. von Möllendorff, 1893 (HELICINIDAE)
- Negotobba, syn of: Genus Meliobba T. Iredale, 1940 (CAMAENIDAE)
- negriensis, Exiligada negriensis T. Iredale, 1939 - (CAMAENIDAE)
- negrilensis, Dialeuca conspersula negrilensis (H.B. Baker, 1935) - (CEPOLIDAE)
- negrilensis, Colobostylus negrilensis (C.B. Adams, 1845) - (POMATIIDAE)
- negrita, Joculator tomacula negrita C.F. Laseron, 1956 - (CERITHIOPSIDAE)
- negrita, Coriophora negrita (C.F. Laseron, 1958) - (TRIPHORIDAE)
- negrita, Triphora negrita C.F. Laseron, 1958 - syn of: Coriophora negrita (C.F. Laseron, 1958) - (TRIPHORIDAE)
- negritensis, Venericor negritensis (A.A. Olsson, 1928 †) - (CARDITIDAE) (FOSSIL)
- negritensis, Corbula negritensis A.A. Olsson, 1928 † - (CORBULIDAE) (FOSSIL)
- negritensis, Sphaerocypraea negritensis A.A. Olsson, 1928 † - (EOCYPRAEIDAE) (FOSSIL)
- negritensis, Cimomia negritensis (A.A. Olsson, 1928 †) - (HERCOGLOSSIDAE) (FOSSIL)
- negritensis, Rochefortia negritensis A.A. Olsson, 1961 - syn of: Mysella morioria - (LASAEIDAE)
- negritensis, Mysella negritensis A.A. Olsson, 1961 - syn of: Kurtiella compressa (W.H. Dall, 1913) - (MONTACUTIDAE)
- negritensis, Eutrephoceras negritensis A.A. Olsson, 1928 † - syn of: Cimomia negritensis (A.A. Olsson, 1928 †) - (NAUTILIDAE) (FOSSIL)
- negritensis, Ostrea negritensis A.A. Olsson, 1928 † - (OSTREIDAE) (FOSSIL)
- negritensis, Terebra negritensis A.A. Olsson, 1930 † - (TEREBRIDAE) (FOSSIL)
- negritensis, Lamelliconcha negritensis A.A. Olsson, 1928 † - (VENERIDAE) (FOSSIL)
- negritosensis, Meretrix negritosensis Woods, in Bosworth, 1922 † - (VENERIDAE) (FOSSIL)
- negroensis, Calliostoma negroensis Rossi de Garcia & J.L. Levy, 1959 † - (CALLIOSTOMATIDAE) (FOSSIL)
- negroides, Varioconus negroides (S.D. Kaicher, 1977) - (CONIDAE)
- negroides, Conus negroides Paes Da Franca in S.D. Kaicher, 1976 - syn of: Varioconus negroides (S.D. Kaicher, 1977) - (CONIDAE)
- negropontica, Isabellaria saxicola negropontica (L. Pfeiffer, 1849) - (CLAUSILIIDAE)
- negropontica, Pseudamnicola macrostoma negropontica (S. Clessin, 1878) - (HYDROBIIDAE)
- negropontina, Isabellaria saxicola negropontina (L. Pfeiffer, 1850) - (CLAUSILIIDAE)
- negropontina, Pseudamnicola negropontina (S. Clessin) - (HYDROBIIDAE)
- negrosa, Helicostyla sarcinosa negrosa P. Bartsch, 1950 - (BRADYBAENIDAE)
- negrosense, Chondropoma gutierrezi negrosense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- negrosensis, Geophorus agglutinans negrosensis P. Bartsch, 1918 - (HELICINIDAE)
- negrosensis, Troschelvindex jiguanensis negrosensis (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- negrosiensis, Tellina negrosiensis V. Bertin, 1878 - syn of: Tellina capsoides J.B.P.A. Lamarck, 1818 - (TELLINIDAE)
- Negulopsis, Genus Negulopsis Nordsieck, 2014 † (VERTIGINIDAE) (FOSSIL)
- Negulus, Genus Negulus O. Böttger, 1889 (VERTIGINIDAE)
- negusi, Hesperaptyxis negusi Snyder & Vermeij, 2016 - (FASCIOLARIIDAE)
- Nehalemia, Genus Nehalemia C.J.S. Hickman, 1974 (COLLONIIDAE)
- Nehdenites, Genus Nehdenites Korn, 2002 † (CHEILOCERATIDAE) (FOSSIL)
- nehdense, Paratorleyoceras nehdense (P. Kaiser, 1873 †) - (CHEILOCERATIDAE) (FOSSIL)
- nehdense, Manticoceras nehdense Lange, 1929 † - syn of: Exotornoceras superstes (Wedekind, 1908 †) - (GEPHUROCERATIDAE) (FOSSIL)
- nehdensis, Cardiola nehdensis Kayser, 1873 † - syn of: Vetupraeca vetusta (J.W. Hall, 1843 †) - (CARDIOLIDAE) (FOSSIL)
- Nehedia, Genus Nehedia Johnston & Chatterton, 1983 † (PSEUDOBIGALEAIDAE) (FOSSIL)
- nehiringi, Thaumastus nehiringi (E.C. Von Martens, 1889) - (MEGASPIRIDAE)
- nehoueensis, Helicina nehoueensis W.D. Hartman, 1889 - (HELICINIDAE)
- nehringi, Mesodontopsis nehringi W.R. Schlickum & F. Strauch, 1973 † - (HELICIDAE) (FOSSIL)
- nehringi, Castalina nehringi H.F.A. von Ihering, 1891 - syn of: Castalia orbignyi (L. Deville & L.H. Hupé, 1850) - (HYRIIDAE)
- nehringi, Thaumastus achilles nehringi E.C. Von Martens, 1889 - (MEGASPIRIDAE)
- neidernachensis, Reitneriteuthis neidernachensis (Reitner, 1978 †) - (LOLIGOSEPIIDAE) (FOSSIL)
- neidernachensis, Loligosepia neidernachensis Reitner, 1978 † - syn of: Reitneriteuthis neidernachensis (Reitner, 1978 †) - (LOLIGOSEPIIDAE) (FOSSIL)
- Neilo, Genus Neilo A. Adams, 1854 (MALLETIIDAE)
- Neiloides, Genus Neiloides Freneix, 1980 † (NUCULIDA (UNASSIGNED)) (FOSSIL)
- Neilonella, Genus Neilonella G. Seguenza, 1877 (NEILONELLIDAE)
- NEILONELLIDAE Schileyko, 1989 - Family (BIVALVIA-PROTOBRANCHIA [Subclass]-NUCULANIDA [Order]-NUCULANOIDEA [Superfamily])
- neilsoni, Epidomatoceras neilsoni J.S. Turner, 1965 † - (GRYPOCERATIDAE) (FOSSIL)
- neilsoni, Cluthoceras neilsoni D.R. Currie, 1954 † - (MUENSTEROCERATIDAE) (FOSSIL)
- Neilsonia, Genus Neilsonia Thomas , 1940 † (GOSSELETINIDAE) (FOSSIL)
- neimanae, Nuculana neimanae O.A. Scarlato, 1981 - (NUCULANIDAE)
- Neimongolidiscus, Genus Neimongolidiscus Pan & Cook, 2003 † (TROPIDODISCIDAE) (FOSSIL)
- neislerii, Amblema neislerii I. Lea, 1858 - (UNIONIDAE)
- Neithea, Genus Neithea Drouet, 1825 † (PECTINIDAE) (FOSSIL)
- NEITHEIDAE Sobetski, 1960 † - Family (BIVALVIA-PTERIOMORPHIA [Subclass]-PECTINIDA [Order]-PECTINOIDEA [Superfamily]) (FOSSIL)
- Neithella, Genus Neithella Hayami, 1965 † (PTERIIDA (UNASSIGNED)) (FOSSIL)
- Neitheops, Subgenus Neithea (Neitheops) Stewart, 1930 † (PECTINIDAE) (FOSSIL)
- neivai, Cheloniceras neivai F. Da Silva, 1962 † - (DOUVILLEICERATIDAE) (FOSSIL)
- nejdensis, Chama nejdensis Abbass, 1972 † - (CHAMIDAE) (FOSSIL)
- nejdensis, Nucula nejdensis Abbass, 1972 † - (NUCULIDAE) (FOSSIL)
- Nejdia, Genus Nejdia Thevenin, 1908 † (HILDOCERATIDAE) (FOSSIL)
- nejjakhense, Lunupharciceras nejjakhense Bockwinkel & al., 2009 † - (PHARCICERATIDAE) (FOSSIL)
- Nekewis, Genus Nekewis Stewart, 1927 † (PERISSITYIDAE) (FOSSIL)
- Neklania, Genus Neklania Pribyl & Ruzicka, 1953 † (ANTIPLEURIDAE) (FOSSIL)
- nektonica, Ethminolia nektonica (T.A. Okutani, 1961) - (TROCHIDAE)
- nektonica tajimensis, Solariella nektonica tajimensis T.A. Okutani & K. Sakurai, 1968 - syn of: Ethminolia nektonica (T.A. Okutani, 1961) - (SOLARIELLIDAE)
- nektonica tajimensis, Ethminolia nektonica tajimensis T.A. Okutani & K. Sakurai, 1968 - syn of: Ethminolia nektonica (T.A. Okutani, 1961) - (TROCHIDAE)
- neku, Hemistomia neku M. Haase & P. Bouchet, 1998 - (TATEIDAE)
- nekuchanicum, Syringoceras nekuchanicum E.S. Sobolev, 1998 † - (SYRINGONAUTILIDAE) (FOSSIL)
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