- hisakatsui, Warthia hisakatsui Murata, 1981 † - (EUPHEMITIDAE) (FOSSIL)
- Hiscerus, Genus Hiscerus Gorjanovic-Kramberger, 1923 † (LYMNAEIDAE) (FOSSIL)
- hiscocki, Simnia hiscocki F.Jr. Lorenz & Melaun, 2011 - (OVULIDAE)
- hiscocki, Myurella hiscocki (J.E. Sprague, 2004) - (TEREBRIDAE)
- hisingeri, Theodoxus hisingeri (L.M.D. Bellardi & O.G. Michelotti, 1841 †) - (NERITIDAE) (FOSSIL)
- hisingeri, Phragmoceras hisingeri A.V.M.D. D'Orbigny † - (PHRAGMOCERATIDAE) (FOSSIL)
- hisingeri, Pleurotomaria hisingeri G.A. Goldfuss, 1864 † - (PLEUROTOMARIIDAE) (FOSSIL)
- Hisingeria, syn of: Genus Centrifugus Bronn, 1835 † (EUOMPHALIDAE) (FOSSIL)
- Hisnitites, Genus Hisnitites Tozer , 1994 † (TRACHYCERATIDAE) (FOSSIL)
- hispada, Nassa hispada A. Adams, 1852 - syn of: Nassarius gruneri (R.W. Dunker, 1846) - (NASSARIIDAE)
- hispalensis, Trapania hispalensis J.L. Cervera & J.C. García-Gómez, 1989 - (GONIODORIDIDAE)
- hispalensis, Theodoxus hispalensis (E.C. Von Martens, 1879) - (NERITIDAE)
- hispalensis, Potomida hispalensis W. Kobelt, 1887 - syn of: Potomida littoralis umbonata E.A. Rossmässler, 1844 - (UNIONIDAE)
- hispaliensis, Mastus hispaliensis C.A. Westerlund, 1892 - syn of: Jaminia pupa (C. Linnaeus, 1758) - (ENIDAE)
- hispalina, Candidula hispalina G. Servain, 1880 - syn of: Candidula gigaxii (L. Pfeiffer, 1850) - (HYGROMIIDAE)
- hispania, Trivia hispania C.N. Cate, 1979 - syn of: Trivia arctica (R. Pulteney, 1799) - (TRIVIIDAE)
- hispanica, Bithynia hispanica G. Servain, 1880 - syn of: Bithynia leachii (R. Sheppard, 1823) - (BITHYNIIDAE)
- hispanica, Pruvotfolia hispanica A. Pruvot-Fol, 1951 - syn of: Pruvotfolia pselliotes (A. Labbé, 1923) - (FACELINIDAE)
- hispanica, Coilostele hispanica J.R. Bourguignat, 1880 - syn of: Coilostele akus G. Servain, 1880 - (FERUSSACIIDAE)
- hispanica, Okenia hispanica Á. Valdés & J.A. Ortea, 1995 - (GONIODORIDIDAE)
- hispanica, Suboestophora hispanica (G.P.L.K. Gude, 1910) - (HYGROMIIDAE)
- hispanica, Tirolthilda hispanica S. Kiel & K. Bandel, 2001 † - (MATHILDIDAE) (FOSSIL)
- hispanica, Dceruska hispanica Kriz 2005 † - (MODIOMORPHIDAE) (FOSSIL)
- hispanica, Mya hispanica R.A. Philippi, 1836 - syn of: Scrobicularia plana (E.M. Da Costa, 1778) - (MYIDAE)
- hispanica, Holandriana hispanica C.A. Westerlund, 1898 - (PLEUROCERIDAE)
- hispanica, Pterotheca hispanica J.O.R. Ebbestad & Gutiérrez-Marco † - (PTEROTHECIDAE) (FOSSIL)
- hispanica, Sphincterochila cariosula hispanica (C.A. Westerlund, 1891) - (SPHINCTEROCHILIDAE)
- hispanica, Oestophora hispanica (G.P.L.K. Gude, 1871) - (TRISSEXODONTIDAE)
- hispanica pyrenaica, Helix hispanica pyrenaica E.A. Rossmässler, 1839 - syn of: Iberellus companyonii (E.A. Rossmässler, 1839) - (HELICIDAE)
- hispanicum, Palaospeum hispanicum H.D. Boeters, 2003 - (MOITESSIERIIDAE)
- hispanicum, Pisidium hispanicum S. Clessin, 1879 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- hispanicum, Sphaerium hispanicum J.R. Bourguignat, 1870 - syn of: Musculium lacustre (O.F. Müller, 1774) - (SPHAERIIDAE)
- hispanicum, Maeneceras hispanicum Kullmann, 1960 † - (SPORADOCERATIDAE) (FOSSIL)
- hispanicum odaense, Palaospeum hispanicum odaense H.D. Boeters, 2003 - syn of: Palaospeum hispanicum ondaense H.D. Boeters, 2003 - (MOITESSIERIIDAE)
- hispanicum ondaense, Palaospeum hispanicum ondaense H.D. Boeters, 2003 - (MOITESSIERIIDAE)
- hispanicus, Mesarion hispanicus (H.R. Simroth, 1886) - (ARIONIDAE)
- hispanicus, Obscurella hispanicus J.R. Bourguignat, 1869 - syn of: Cochlostoma hidalgoi (J.C.H. Crosse, 1864) - (COCHLOSTOMATIDAE)
- hispanicus, Eoschizodus hispanicus Amler, 2010 † - (EOSCHIZODIDAE) (FOSSIL)
- hispanicus, Iberellus hispanicus (E.A. Rossmässler, 1838) - (HELICIDAE)
- hispanicus, Olcostephanus hispanicus (Mallada, 1882 †) - (OLCOSTEPHANIDAE) (FOSSIL)
- hispanicus, Ancylus hispanicus Gönä - syn of: Ancylus fluviatilis O.F. Müller, 1774 - (PLANORBIDAE)
- hispanicus, Archaeoradiolites hispanicus Fenerci-Masse & al., 2006 † - (RADIOLITIDAE) (FOSSIL)
- hispanicus, Sinuites hispanicus I. von Born, 1916 † - (SINUITIDAE) (FOSSIL)
- hispaniensis, Deroceras hispaniensis J. Castillejo & A. Wiktor, 1983 - syn of: Deroceras lombricoides P.M.A. Morelet, 1845 - (AGRIOLIMACIDAE)
- hispaniola, Crassostrea hispaniola J.H. Orton, 1928 - syn of: Crassostrea gigas (C.P. Thunberg, 1793) - (OSTREIDAE)
- hispaniolae, Drillia hispaniolae C.J. Maury, 1917 † - syn of: Crassispira hispaniolae (C.J. Maury, 1917 †) - (DRILLIIDAE) (FOSSIL)
- hispaniolae, Montacuta hispaniolae C.J. Maury, 1917 † - (MONTACUTIDAE) (FOSSIL)
- hispaniolae, Chondropoma petitianum hispaniolae P. Bartsch, 1946 - (POMATIIDAE)
- hispaniolae, Crassispira hispaniolae (C.J. Maury, 1917 †) - (PSEUDOMELATOMIDAE) (FOSSIL)
- hispaniolae, Cymatoica hispaniolae Maury 1917 † - (TELLINIDAE) (FOSSIL)
- hispaniolana, Cunearca hispaniolana C.J. Maury, 1917 † - (ARCIDAE) (FOSSIL)
- Hispaniolana, syn of: Genus Polydontes P.D. Montfort, 1810 (CAMAENIDAE)
- hispaniolana, Lucinisca hispaniolana C.J. Maury, 1917 † - (LUCINIDAE) (FOSSIL)
- hispaniolana, Marginella hispaniolana C.J. Maury, 1917 † - (MARGINELLIDAE) (FOSSIL)
- hispaniolensis, Anticlimax hispaniolensis H.A. Pilsbry & A.A. Olsson, 1950 - (TORNIDAE)
- hispaniolensis cratera, Anticlimax hispaniolensis cratera H.A. Pilsbry & A.A. Olsson, 1950 - (TORNIDAE)
- Hispanipoma, Genus Hispanipoma P. Bartsch, 1946 (POMATIIDAE)
- Hispanoconus, Genus Hispanoconus Gubanov & al., 2004 † (HELCIONELLIDAE) (FOSSIL)
- Hispanosinuites, Genus Hispanosinuites Fryda & Gutierrez-Marco, 1996 † (SINUITIDAE) (FOSSIL)
- hispanus, Unio hispanus E.A. Rossmässler, 1844 - syn of: Unio abrantesianus É.A.A. Locard, 1899 - (UNIONIDAE)
- hispida, Arca hispida R.A. Philippi, 1849 - syn of: Anadara rhomboidalis (H.C.F. Schumacher, 1817) - (ARCIDAE)
- hispida, Omphalotropis hispida (E.A. Liardet, 1876) - (ASSIMINEIDAE)
- hispida, Thysanota hispida E.R. Sykes, 1898 - (CHAROPIDAE)
- hispida, Coccopigya hispida B.A. Marshall, 1986 - (COCCULINIDAE)
- hispida, Japonia hispida H. Minato, 1982 - (CYCLOPHORIDAE)
- hispida, Diaulula hispida (A.V.M.D. D'Orbigny, 1834) - (DISCODORIDIDAE)
- hispida, Doris hispida D'Orbigny, 1837 - syn of: Diaulula hispida (A.V.M.D. D'Orbigny, 1834) - (DORIDIDAE)
- hispida, Alcadia hispida (L. Pfeiffer, 1839) - (HELICINIDAE)
- Hispida, syn of: Subgenus Alcadia (Penisoltia) F.C. Baker, 1954 (HELICINIDAE)
- hispida, Trichia hispida (C. Linnaeus, 1758) - (HYGROMIIDAE)
- hispida, Cytora hispida N.W. Gardner, 1967 - (LIAREIDAE)
- hispida, Austropeplea hispida (W.F. Ponder & C.O. Waterhouse, 1997) - (LYMNAEIDAE)
- hispida, Bela hispida (L.M.D. Bellardi, 1877 †) - (MANGELIIDAE) (FOSSIL)
- hispida, Muricopsis hispida G.S. Coen, 1933 ex T.A. de M. Monterosato MS - syn of: Muricopsis cristatus (G.B. Brocchi, 1814) - (MURICIDAE)
- hispida, Nassarius hispida A. Adams, 1852 - syn of: Nassarius gruneri (R.W. Dunker, 1846) - (NASSARIIDAE)
- hispida, Nassa hispida A. Adams, 1852 - syn of: Nassarius gruneri (R.W. Dunker, 1846) - (NASSARIIDAE)
- hispida, Raphitoma cordieri hispida (T.A. de M. Monterosato, 1890) - (RAPHITOMIDAE)
- hispida, Siphonaria hispida B. Hubendick, 1946 - (SIPHONARIIDAE)
- hispida, Policordia hispida Safonova & Barwick, 2016 - (VERTICORDIIDAE)
- hispida oreinos, Fruticicola hispida oreinos A.J. Wagner, 1914 - syn of: Trochulus oreinos (A.J. Wagner, 1914) - (BRADYBAENIDAE)
- Hispidana, syn of: Genus Trochulus J.D.W. Hartmann 1840 (HYGROMIIDAE)
- Hispidella, Subgenus Actinella (Hispidella) R.T. Lowe, 1852 (HYGROMIIDAE)
- hispidella, Trochulus hispidella J.R. Bourguignat in É.A.A. Locard, 1882 - syn of: Trichia hispida (C. Linnaeus, 1758) - (HYGROMIIDAE)
- Hispidofusus, Genus Hispidofusus Darragh, 1969 † (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- hispidosa, Trochulus hispidosa J.R. Bourguignat in P. Fagot, 1879 - syn of: Trichia hispida (C. Linnaeus, 1758) - (HYGROMIIDAE)
- hispidula, Canariella hispidula (J.B.P.A. Lamarck, 1822) - (CANARIELLIDAE)
- hispidula, Cerithium vulgatum hispidula T.A. de M. Monterosato - (CERITHIIDAE)
- hispidula, Scabrina hispidula W.T. Blanford - (CYCLOPHORIDAE)
- hispidula, Xerotricha hispidula A. Risso, 1826 - syn of: Xerotricha apicina (J.B.P.A. Lamarck, 1822) - (HYGROMIIDAE)
- hispidula, Laternula hispidula G.L.C.F.D. Cuvier, 1829 - syn of: Laternula anatina (C. Linnaeus, 1758) - (LATERNULIDAE)
- hispidula, Anatina hispidula G.L.C.F.D. Cuvier, 1829 - syn of: Laternula anatina (C. Linnaeus, 1758) - (MACTRIDAE)
- hispidula, Bela hispidula (L.M.D. Bellardi, 1847 †) - (MANGELIIDAE) (FOSSIL)
- hispidula, Melanopsis pygmaea hispidula P.M. Pallary, 1916 † - (MELANOPSIDAE) (FOSSIL)
- hispidula, Ocinebrina hispidula (P.M. Pallary, 1904) - (MURICIDAE)
- hispidula, Oliva hispidula H.M.D. de Blainville, 1825 - syn of: Oliva oliva (C. Linnaeus, 1758) - (OLIVIDAE)
- hispidula, Alvania hispidula (T.A. de M. Monterosato, 1884) - (RISSOIDAE)
- hispidula, Alvania hispidula T.A. de M. Monterosato, 1884 - syn of: Alvania hispidula (T.A. de M. Monterosato, 1884) - (RISSOIDAE)
- hispidula berthelotii, Canariella hispidula berthelotii A.V.M.D. D'Orbigny, 1836 - syn of: Canariella hispidula (J.B.P.A. Lamarck, 1822) - (CANARIELLIDAE)
- hispidula continentalis, Alvania hispidula continentalis F. Nordsieck, 1972 - (RISSOIDAE)
- hispidula fasciata, Muricopsis hispidula fasciata F. Settepassi, 1977 - syn of: Ocinebrina hybrida (A. Aradas & L. Benoit, 1876) - (MURICIDAE)
- hispidula lanosa, Canariella hispidula lanosa A. Mousson, 1872 - syn of: Canariella hispidula (J.B.P.A. Lamarck, 1822) - (CANARIELLIDAE)
- hispidulum, Epitonium hispidulum (T.A. de M. Monterosato, 1874) - (EPITONIIDAE)
- hispidulus, Colus hispidulus A.E. Verrill, 1885 - syn of: Mohnia abyssorum (P. Fischer, 1884) - (BUCCINIDAE)
- hispidulus, Gyraulus hispidulus J.P.R. Draparnaud, 1805 - syn of: Gyraulus albus (O.F. Müller, 1774) - (PLANORBIDAE)
- hispidulus inflatus, Muricopsis hispidulus inflatus F. Settepassi, 1977 - syn of: Ocinebrina hybrida (A. Aradas & L. Benoit, 1876) - (MURICIDAE)
- hispidum, Spiraculum hispidum (H.J. Pearson, 1833) - (CYCLOPHORIDAE)
- hispidum, Ochetoceras hispidum Oppel, 1863 † - (OPPELIIDAE) (FOSSIL)
- hispidus, Aegirus hispidus P. Hesse, 1872 - syn of: Aegires punctilucens (A.V.M.D. D'Orbigny, 1837) - (AEGIRIDAE)
- hispidus, Aegires hispidus P. Hesse, 1872 - syn of: Aegires punctilucens (A.V.M.D. D'Orbigny, 1837) - (AEGIRIDAE)
- hispidus, Ammonites hispidus Oppel, 1863 † - syn of: Ochetoceras canaliculatum (von Buch, 1831 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- hispidus, Planorbis hispidus J.P.R. Draparnaud, 1805 - syn of: Gyraulus albus (O.F. Müller, 1774) - (PLANORBIDAE)
- hispidus, Gyraulus hispidus J.P.R. Draparnaud, 1805 - syn of: Gyraulus albus (O.F. Müller, 1774) - (PLANORBIDAE)
- hispidus, Spondylus hispidus Makarenko, 1970 † - (SPONDYLIDAE) (FOSSIL)
- hissarica, Martensamnicola hissarica (V.I. Zhadin, 1950) - (HYDROBIIDAE)
- hissarica, Pisidium hissarica (Z.I. Izzatullaev, 1985) - (SPHAERIIDAE)
- hissarica, Euglesa hissarica Z.I. Izzatullaev, 1985 - syn of: Pisidium hissarica (Z.I. Izzatullaev, 1985) - (SPHAERIIDAE)
- Hisseyagibbula, Subgenus Gibbula (Hisseyagibbula) J.A. Kershaw, 1955 (TROCHIDAE)
- hisseyiana, Littorina hisseyiana J.E. Tenison-Woods, 1876 - syn of: Gibbula hisseyiana (J.E. Tenison-Woods, 1876) - (LITTORINIDAE)
- hisseyiana, Gibbula hisseyiana (J.E. Tenison-Woods, 1876) - (TROCHIDAE)
- histia, Mirarissoina histia (P. Bartsch, 1915) - (ZEBINIDAE)
- histia, Folinia histia (P. Bartsch, 1915) - syn of: Mirarissoina histia (P. Bartsch, 1915) - (ZEBINIDAE)
- histias, Turbonilla histias W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- Histiochromius, Genus Histiochromius G.J. Pfeffer, 1912 (BRACHIOTEUTHIDAE)
- Histiomena, Genus Histiomena O.A.L. Mörch, 1859 (ARMINIDAE)
- histion, Streblochondria histion G.B. Campbell, 1962 † - (STREBLOCHONDRIIDAE) (FOSSIL)
- Histiophorus, syn of: Genus Plocamopherus F.S. Leuckart, 1928 (POLYCERIDAE)
- Histiopsis, syn of: Genus Histioteuthis D'Orbigny, 1842 in A.E.J. Férussac & D'Orbigny, 1834 (HISTIOTEUTHIDAE)
- HISTIOTEUTHIDAE Verrill, 1881 - Family (CEPHALOPODA-COLEOIDEA [Subclass]-DECAPODIFORMES [Superorder]-OEGOPSIDA [Order])
- Histioteuthis, Genus Histioteuthis D'Orbigny, 1842 in A.E.J. Férussac & D'Orbigny, 1834 (HISTIOTEUTHIDAE)
- Histiothauma, syn of: Genus Histioteuthis D'Orbigny, 1842 in A.E.J. Férussac & D'Orbigny, 1834 (HISTIOTEUTHIDAE)
- histochilus, Ceratosiphon histochilus (J. Gardner, 1875 †) - (APORRHAIDAE) (FOSSIL)
- Histoctopus, Genus Histoctopus M.D. Norman, R. Boucher-Rodoni & F.G. Hochberg, 2009 (OCTOPODIDAE)
- historica, Ilsanella historica Barskova, 1987 † - (SCENELLIDAE) (FOSSIL)
- historicum, Proturritella historicum Hudson, 1905 † - (LOPHOSPIRIDAE) (FOSSIL)
- histosia, Helcionella histosia Jacquet & P. Brock, 2016 † - (HELCIONELLIDAE) (FOSSIL)
- histriaca, Epitonium histriaca A. Feneaux, 1943 - syn of: Epitonium clathrus (C. Linnaeus, 1758) - (EPITONIIDAE)
- histriaca elongata, Epitonium histriaca elongata A. Feneaux, 1943 - syn of: Epitonium clathrus (C. Linnaeus, 1758) - (EPITONIIDAE)
- histriata, Leptadrillia histriata P.J. Fallon, 2016 - (DRILLIIDAE)
- histrica, Valvata histrica A.A. Gould, 1859 - syn of: Sinotaia quadrata histrica (A.A. Gould, 1859) - (VALVATIDAE)
- histrica, Sinotaia histrica A.A. Gould, 1859 - syn of: Sinotaia quadrata histrica (A.A. Gould, 1859) - (VIVIPARIDAE)
- histrica, Sinotaia quadrata histrica (A.A. Gould, 1859) - (VIVIPARIDAE)
- Histricosceptrum, Subgenus Fulgurofusus (Histricosceptrum) T.A. Darragh, 1969 (TURBINELLIDAE)
- histricosum, Epitonium histricosum (F.P. Jousseaume, 1912) - (EPITONIIDAE)
- histrio, Engina histrio L.A. Reeve, 1846 - syn of: Engina alveolata (L.C. Kiener, 1836) - (BUCCINIDAE)
- Histrio, syn of: Subgenus Cepolis (Coryda) J.A. Albers, 1850 (CEPOLIDAE)
- histrio, Rhachistia histrio (L. Pfeiffer, 1855) - (CERASTUIDAE)
- histrio, Chromodoris histrio L.S.R. Bergh, 1877 - syn of: Goniobranchus rufomaculatus (W.H. Pease, 1871) - (CHROMODORIDIDAE)
- histrio, Pusia histrio (L.A. Reeve, 1844) - (COSTELLARIIDAE)
- histrio, Mauritia histrio (J.F. Gmelin, 1791) - (CYPRAEIDAE)
- histrio, Rachistia histrio (L. Pfeiffer, 1854) - (ENIDAE)
- histrio, Lithoglyphus histrio M. von Neumayr in M. von Neumayr & C.R.C. Paul, 1875 † - (LITHOGLYPHIDAE) (FOSSIL)
- histrio, Mitra histrio L.A. Reeve, 1844 - syn of: Pusia histrio (L.A. Reeve, 1844) - (MITRIDAE)
- histrio, Ricinula histrio L.A. Reeve, 1846 - syn of: Engina alveolata (L.C. Kiener, 1836) - (MURICIDAE)
- histrio, Nerita histrio C. Linnaeus, 1758 - syn of: Nerita squamulata E.J. Le Guillou, 1841 - (NERITIDAE)
- histrio, Phasianella histrio L.A. Reeve, 1862 - (PHASIANELLIDAE)
- histrio, Pomatias histrio L. Pfeiffer, 1853 - syn of: Tudora jayana (C.B. Adams, 1849) - (POMATIIDAE)
- histrio, Terebra histrio G.P. Deshayes, 1857 - (TEREBRIDAE)
- histrio, Trochus histrio L.A. Reeve, 1842 - (TROCHIDAE)
- histrio, Turbo histrio L.A. Reeve, 1848 - (TURBINIDAE)
- histrio, Dosinia histrio J.F. Gmelin, 1791 - (VENERIDAE)
- histrio bicolor, Turbo histrio bicolor G.B. III Sowerby, 1886 - syn of: Turbo histrio L.A. Reeve, 1848 - (TURBINIDAE)
- histrio elongata, Mauritia histrio elongata L. Raybaudi Massilia - (CYPRAEIDAE)
- histrio iwakawai, Dosinia histrio iwakawai K. Oyama & T. Habe, 1971 - syn of: Dosinia iwakawai K. Oyama & T. Habe, 1971 - (VENERIDAE)
- histrio westralis, Mauritia histrio westralis T. Iredale, 1935 - (CYPRAEIDAE)
- histrionica, Excellichlamys histrionica (J.F. Gmelin, 1791) - (PECTINIDAE)
- histrionica, Leukoma histrionica (Sowerby, 1835) - (VENERIDAE)
- histrionica, Venus histrionica W.J. Broderip & G.B. I Sowerby, 1835 - syn of: Leukoma asperrima (Sowerby, 1835) - (VENERIDAE)
- histrix, Spurilla histrix B.C. Otto, 1821 - syn of: Spurilla neapolitana (S. Delle Chiaje, 1841) - (AEOLIDIIDAE)
- histrix, Pyramidelloides histrix S.M. Souverbie, 1877 - syn of: Pyramidelloides mirandus (A. Adams, 1861) - (EULIMIDAE)
- histrix, Flabellina histrix (B.C. Otto, 1823) - (FLABELLINIDAE)
- histrix, Mitra histrix R.P. Montrouzier, 1862 - (MITRIDAE)
- histrix, Murex histrix P.F. Röding, 1798 - syn of: Murex pecten J. Lightfoot, 1786 - (MURICIDAE)
- histrix, Raphitoma histrix (G. Jan in L.M.D. Bellardi, 1847 †) - (RAPHITOMIDAE) (FOSSIL)
- histrix, Spondylus histrix J.F. Bolten in P.F. Röding, 1798 - syn of: Spondylus nicobaricus hystrix J.F. Bolten in P.F. Röding, 1798 - (SPONDYLIDAE)
- hitachi, Euhadra brandtii hitachi I. Ijima, 1891 - (BRADYBAENIDAE)
- hitachi, Nipponochloritis oscitans hitachi E. Sorita, 1986 - (CAMAENIDAE)
- hitauniense, Permoceras hitauniense Haniel, 1915 † - syn of: Permoceras bitauniense (Haniel, 1915 †) - (PERMOCERATIDAE) (FOSSIL)
- hitchcocki, Amastra hitchcocki C.M. Cooke, 1917 - (AMASTRIDAE)
- hitchcocki, Pseudotectus hitchcocki A.H. Clarke, 1907 † - syn of: Hystricoceras astraliformis (Lindström, 1884 †) - (PSEUDOPHORIDAE) (FOSSIL)
- hitchinensis, Subprionocyclus hitchinensis Billinghurst, 1927 † - (COLLIGNONICERATIDAE) (FOSSIL)
- Hitia, Genus Hitia W.H. Dall, P. Bartsch & H.A. Rehder, 1938 (LASAEIDAE)
- hitomiae, Tropidauchenia hitomiae H. Nordsieck, 2007 - (CLAUSILIIDAE)
- hitomiae, Orania archaea hitomiae R. Houart & C.O. Moe, 2011 - (MURICIDAE)
- hitomiae rufescens, Tropidauchenia hitomiae rufescens H. Nordsieck, 2007 - (CLAUSILIIDAE)
- hitzi, Zitteloceras hitzi Foerste, 1910 † - (ONCOCERATIDAE) (FOSSIL)
- hitzii, Tessarolax hitzii White, 1883 † - (APORRHAIDAE) (FOSSIL)
- hiulca, Retinella hiulca (J.A. Albers, 1850) - (ZONITIDAE)
- hiulca, Aegopinella hiulca A. Moquin-Tandon, 1855 - syn of: Aegopinella epipedostoma (P. Fagot, 1879) - (ZONITIDAE)
- hiulcum, Papyridea hiulcum (L.A. Reeve, 1845) - (CARDIIDAE)
- hiulcus, Bellerophon hiulcus Sowerby, 1825 † - (BELLEROPHONTIDAE) (FOSSIL)
- hiulcus, Scaphander hiulcus C.R. Laws, 1936 † - (SCAPHANDRIDAE) (FOSSIL)
- hivanus, Rolaniconus hivanus (R.G. Moolenbeek, A. Zandbergen & P. Bouchet, 2008) - (CONIDAE)
- hivaoaense, Herpetopoma hivaoaense Vilvens, 2017 - (CHILODONTIDAE)
- hiwanneensis, Metula hiwanneensis D.T. Dockery, 1984 † - (BUCCINIDAE) (FOSSIL)
- hiwanneensis, Terebrellina hiwanneensis McNeil, 1984 † - (TEREBRIDAE) (FOSSIL)
- hiwanneensis, Pleurofusia hiwanneensis McNeil, 1984 † - (TURRIDAE) (FOSSIL)
- Hiwia, Genus Hiwia Marwick, 1931 † (MARGINELLIDAE) (FOSSIL)
- hizenensis, Trishoplita collinsoni hizenensis H.A. Pilsbry & Y. Hirase, 1903 - (BRADYBAENIDAE)
- hizenensis, Kaliella hizenensis H.A. Pilsbry, 1902 - (CHRONIDAE)
- hizenensis, Vexillum hizenensis H.A. Pilsbry, 1901 - syn of: Pusia inerme (L.A. Reeve, 1845) - (COSTELLARIIDAE)
- hizenensis, Corbicula hizenensis Ueji, 1934 † - (CYRENIDAE) (FOSSIL)
- hizenensis, Niso hizenensis J.T. Kuroda & T. Habe, 1950 - syn of: Niso hizensis J.T. Kuroda & T. Habe, 1950 - (EULIMIDAE)
- hizenensis, Parakaliella hizenensis (H.A. Pilsbry, 1902) - (HELICARIONIDAE)
- hizenensis, Nassarius fraterculus hizenensis H.A. Pilsbry, 1904 - (NASSARIIDAE)
- hizenensis, Terebra hizenensis H.A. Pilsbry, 1904 - syn of: Terebra textilis hizenensis H.A. Pilsbry, 1904 - (TEREBRIDAE)
- hizenensis, Terebra textilis hizenensis H.A. Pilsbry, 1904 - (TEREBRIDAE)
- hizenensis, Clanculus hizenensis H.A. Pilsbry, 1901 - (TROCHIDAE)
- hizenensis fraterculus, Clanculus hizenensis fraterculus H.A. Pilsbry, 1904 - syn of: Clanculus bronni R.W. Dunker, 1860 - (TROCHIDAE)
- hizensis, Niso hizensis J.T. Kuroda & T. Habe, 1950 - (EULIMIDAE)
- Hjalmarsona, Subgenus Alcadia (Hjalmarsona) F.C. Baker, 1954 (HELICINIDAE)
- hjalmarsoni, Drymaeus hjalmarsoni L. Pfeiffer, 1856 - (BULIMULIDAE)
- hjalmarsoni, Alcadia hjalmarsoni (L. Pfeiffer, 1856) - (HELICINIDAE)
- hjalmarsoni, Gundlachia hjalmarsoni L. Pfeiffer, 1858 - (PLANORBIDAE)
- hjalmarsoni, Chondropoma hjalmarsoni L. Pfeiffer, 1858 - (POMATIIDAE)
- hjalmarsoni, Nephronaias hjalmarsoni (R.W. Dunker, 1858) - (UNIONIDAE)
- hjorti, Mastigopsis hjorti (C. Chun, 1913) - (MASTIGOTEUTHIDAE)
- hjorti, Idioteuthis hjorti (C. Chun, 1913) - syn of: Mastigopsis hjorti (C. Chun, 1913) - (MASTIGOTEUTHIDAE)
- hjorti, Notobranchaea hjorti (K.E.H. Bonnevie, 1913) - (NOTOBRANCHAEIDAE)
- hjortii, Schleschia hjortii K.E.H. Bonnevie, 1914 - syn of: Notobranchaea hjorti (K.E.H. Bonnevie, 1913) - (NOTOBRANCHAEIDAE)
- Hlawiceras, Genus Hlawiceras Buckman, 1921 † (PARKINSONIIDAE) (FOSSIL)
- hoabinhensis, Camaena hoabinhensis Thach, 2016 - (CAMAENIDAE)
- hoabinhensis, Brotia hoabinhensis F. Köhler, M. Holford, V.T. Do & T.H. Ho, 2009 - (PACHYCHILIDAE)
- hoaraui, Galeodea hoaraui J. Drivas & M. Jay, 1989 - (CASSIDAE)
- hoaraui, Kioconus hoaraui E. Monnier & L. Limpalaër, 2015 - (CONIDAE)
- hoaraui, Vexillum hoaraui E.G. Guillot de Suduiraut, 2007 - (COSTELLARIIDAE)
- hoaraui, Triplostephanus hoaraui (J. Drivas & M. Jay, 1988) - (TEREBRIDAE)
- hoaraui, Terebra hoaraui J. Drivas & M. Jay, 1988 - syn of: Triplostephanus hoaraui (J. Drivas & M. Jay, 1988) - (TEREBRIDAE)
- Hoarechiton, Genus Hoarechiton Sirenko, 2013 † (LEPTOCHITONIDAE) (FOSSIL)
- hoarei, Pseudozygopleura hoarei A. Nützel, 1998 † - (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- Hoareicardia, Genus Hoareicardia Rogalla & Amler, 2006 † (HIPPOCARDIIDAE) (FOSSIL)
- hobartense, Eurydesma hobartense Johnston, 1887 † - (EURYDESMATIDAE) (FOSSIL)
- hobartense konincki, Eurydesma hobartense konincki Johnston, 1887 † - (EURYDESMATIDAE) (FOSSIL)
- hobartensis, Aviculopecten hobartensis Johnston, 1887 † - syn of: Etheripecten tenuicollis (J.B.M. Dana, 1847 †) - (AVICULOPECTINIDAE) (FOSSIL)
- hobartensis, Pachydomus hobartensis Johnston, 1887 † - syn of: Eurydesma hobartense Johnston, 1887 † - (MEGADESMIDAE) (FOSSIL)
- hobarti, Paralaoma hobarti (J.C. Cox, 1868) - (PUNCTIDAE)
- hobbsae, Acrosterigma hobbsae E. Vidal, 1999 - (CARDIIDAE)
- hoberti, Tricolia hoberti Š. Brusina, 1869 - (PHASIANELLIDAE)
- hoberti alternata, Tricolia hoberti alternata T.A. de M. Monterosato, 1884 - syn of: Tricolia tenuis (A. Michaud, 1829) - (PHASIANELLIDAE)
- hoberti brindisfax, Tricolia hoberti brindisfax F. Nordsieck, 1973 - syn of: Tricolia pullus (C. Linnaeus, 1758) - (PHASIANELLIDAE)
- hoberti carissima, Tricolia hoberti carissima T.A. de M. Monterosato, 1917 - syn of: Tricolia tenuis (A. Michaud, 1829) - (PHASIANELLIDAE)
- hoberti eximia, Tricolia hoberti eximia T.A. de M. Monterosato, 1884 - syn of: Tricolia tenuis (A. Michaud, 1829) - (PHASIANELLIDAE)
- hoberti incomparabilis, Tricolia hoberti incomparabilis T.A. de M. Monterosato, 1884 - syn of: Tricolia tenuis (A. Michaud, 1829) - (PHASIANELLIDAE)
- hoberti major, Tricolia hoberti major T.A. de M. Monterosato, 1884 - syn of: Tricolia tenuis (A. Michaud, 1829) - (PHASIANELLIDAE)
- hoberti minor, Tricolia hoberti minor T.A. de M. Monterosato, 1884 - syn of: Tricolia tenuis (A. Michaud, 1829) - (PHASIANELLIDAE)
- hobetsense, Gaudryceras hobetsense Y. Shigeta & S. Nishimura, 2013 † - (GAUDRYCERATIDAE) (FOSSIL)
- hobsoni, Surcula hobsoni G.D. Hanna, 1924 † - syn of: Hindsiclava consors (G.B. I Sowerby, 1850 †) - (CLAVATULIDAE) (FOSSIL)
- hobsoni, Forresteria hobsoni Reeside, 1932 † - (COLLIGNONICERATIDAE) (FOSSIL)
- hobsoni, Macrodelos hobsoni (J.W. Brazier, 1876) - (RHYTIDIDAE)
- Hochbergellus, Genus Hochbergellus B. Roth & W.B. Miller, 1992 (POLYGYRIDAE)
- hochbergi, Cirroctopus hochbergi B.J. O'Shea, 1999 - (CIRROCTOPODIDAE)
- Hochbergius, syn of: Genus Hochbergellus B. Roth & W.B. Miller, 1992 (POLYGYRIDAE)
- hochheimensis, Carychiopsis schwageri hochheimensis W.A. Wenz, 1923 † - (ELLOBIIDAE) (FOSSIL)
- hochmuthi, Pellasimnia hochmuthi F.Jr. Lorenz & D. Fehse, 2009 - (OVULIDAE)
- hochstetteri, Belemnopsis hochstetteri J. Hector, 1929 † - (BELEMNOPSEIDAE) (FOSSIL)
- hochstetteri, Dendroconus hochstetteri Martin, 1879 † - (CONIDAE) (FOSSIL)
- hochstetteri, Dendroconus hochstetteri Hoernes & Auinger, 1879 † - (CONIDAE) (FOSSIL)
- hochstetteri, Echyridella menziesii hochstetteri (R.W. Dunker, 1862) - (HYRIIDAE)
- hochstetteri, Liarea hochstetteri L. Pfeiffer, 1861 - (LIAREIDAE)
- hochstetteri, Benedictites hochstetteri (Oppel) † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- hochstetteri, Patella hochstetteri Martin, 1879 † - (PATELLIDAE) (FOSSIL)
- hochstetteri, Lentipecten hochstetteri (C.A. von Zittel, 1864 †) - (PECTINIDAE) (FOSSIL)
- hochstetteri, Harrisianella hochstetteri (Martin, 1879 †) - (POTAMIDIDAE) (FOSSIL)
- hochstetteri, Powelliphanta hochstetteri (L. Pfeiffer, 1862) - (RHYTIDIDAE)
- hochstetteri, Paryphanta hochstetteri L. Pfeiffer, 1862 - syn of: Powelliphanta hochstetteri (L. Pfeiffer, 1862) - (RHYTIDIDAE)
- hochstetteri, Terebra hochstetteri Martin, 1879 † - (TEREBRIDAE) (FOSSIL)
- hochstetteri, Tonna hochstetteri K. Martin, 1879 - syn of: Tonna allium (L.W. Dillwyn, 1817) - (TONNIDAE)
- hochstetteri, Unio hochstetteri R.W. Dunker, 1862 - syn of: Echyridella menziesii hochstetteri (R.W. Dunker, 1862) - (UNIONIDAE)
- hochstetteri alta, Liarea hochstetteri alta A.W.B. Powell, 1954 - (LIAREIDAE)
- hochstetteri anatokiensis, Powelliphanta hochstetteri anatokiensis (A.W.B. Powell, 1938) - (RHYTIDIDAE)
- hochstetteri anatokiensis, Paryphanta hochstetteri anatokiensis A.W.B. Powell, 1938 - syn of: Powelliphanta hochstetteri anatokiensis (A.W.B. Powell, 1938) - (RHYTIDIDAE)
- hochstetteri bicolor, Powelliphanta hochstetteri bicolor (A.W.B. Powell, 1930) - (RHYTIDIDAE)
- hochstetteri bicolor, Paryphanta hochstetteri bicolor A.W.B. Powell, 1930 - syn of: Powelliphanta hochstetteri bicolor (A.W.B. Powell, 1930) - (RHYTIDIDAE)
- hochstetteri carinella, Liarea hochstetteri carinella (L. Pfeiffer, 1861) - (LIAREIDAE)
- hochstetteri consobrina, Powelliphanta hochstetteri consobrina (A.W.B. Powell, 1936) - (RHYTIDIDAE)
- hochstetteri consobrina, Paryphanta hochstetteri consobrina A.W.B. Powell, 1936 - syn of: Powelliphanta hochstetteri consobrina (A.W.B. Powell, 1936) - (RHYTIDIDAE)
- hochstetteri obscura, Powelliphanta hochstetteri obscura (Beutler, 1901) - (RHYTIDIDAE)
- hochstetteri obscura, Paryphanta hochstetteri obscura Beutler, 1901 - syn of: Powelliphanta hochstetteri obscura (Beutler, 1901) - (RHYTIDIDAE)
- Hochstetteria, syn of: Genus Philobrya P.P. Carpenter, 1872 (PHILOBRYIDAE)
- Hochstetterina, syn of: Genus Adacnarca J.P.L. Pelseneer, 1903 (PHILOBRYIDAE)
- hochulii, Anaflemingites hochulii Brayard & Bucher, 2008 † - (FLEMINGITIDAE) (FOSSIL)
- Hochuliites, Genus Hochuliites Brühwiler & Bucher, 2012 † (INYOITIDAE) (FOSSIL)
- hockingensis, Anodonta hockingensis R.E. Call, 1880 - syn of: Anodonta grandis T. Say, 1829 - (UNIONIDAE)
- hodgei, Calliostoma hodgei F.W. Hutton, 1875 - syn of: Maurea selecta (L.W. Dillwyn, 1817) - (CALLIOSTOMATIDAE)
- hodgei, Sconsia hodgei T.A. Conrad, 1841 † - syn of: Sconsia hodgii (T.A. Conrad, 1841 †) - (CASSIDAE) (FOSSIL)
- hodgei, Crassatella hodgei L.W. Stephenson, 1923 † - (CRASSATELLIDAE) (FOSSIL)
- hodgei, Chlamys hodgei L.G. Hertlein, 1925 † - (PECTINIDAE) (FOSSIL)
- hodgei, Gari convexa hodgei R.C. Willan, 1980 - (PSAMMOBIIDAE)
- hodgii, Sconsia hodgii (T.A. Conrad, 1841 †) - (CASSIDAE) (FOSSIL)
- hodgii, Pecten hodgii Hubbard, 1920 † - syn of: Mimachlamys canalis (J. Brown & H.A. Pilsbry, 1913 †) - (PECTINIDAE) (FOSSIL)
- hodgkini, Afropisidium hodgkini (H.H. Suter, 1905) - (SPHAERIIDAE)
- hodgkini, Pisidium hodgkini H.H. Suter, 1905 - syn of: Afropisidium hodgkini (H.H. Suter, 1905) - (SPHAERIIDAE)
- hodgkinsoni, Tenuimactra hodgkinsoni Garvie 1996 † - (CARDIIDA (UNASSIGNED)) (FOSSIL)
- hodgsoni, Bathydoris hodgsoni C.N.E. Eliot, 1907 - (BATHYDORIDIDAE)
- hodgsoni, Parachiton hodgsoni B.I. Sirenko, 2000 - (LEPTOCHITONIDAE)
- hodgsoni, Limatula hodgsoni (E.A. Smith, 1907) - (LIMIDAE)
- hodites, Peelerophon hodites Ebbestad & al., 2013 † - (TROPIDODISCIDAE) (FOSSIL)
- hoditra, Cyathopoma hoditra K.C. Emberton, 2010 - (CYCLOPHORIDAE)
- hodsonae, Cancellaria hodsonae B.M. Landau & R.E. Petit, 1997 † - (CANCELLARIIDAE) (FOSSIL)
- hodsoni, Varicorbula hodsoni Clark & J.W. Durham, 1946 † - (CORBULIDAE) (FOSSIL)
- hodsoni, Persicula hodsoni N.E. Weisbord, 1962 † - (CYSTISCIDAE) (FOSSIL)
- hodsoni, Prunum hodsoni N.E. Weisbord, 1962 - syn of: Prunum prunum (J.F. Gmelin, 1791) - (MARGINELLIDAE)
- hodsoni, Cymatophos hodsoni (A.A. Olsson, 1932 †) - (NASSARIIDAE) (FOSSIL)
- hodsoni, Procerites hodsoni Arkell † - (PERISPHINCTIDAE) (FOSSIL)
- hodsoni, Tectiretites hodsoni Ruzhentsev & Bogoslovskaya, 1975 † - (RETICULOCERATIDAE) (FOSSIL)
- Hodsonites, Genus Hodsonites † (RAMOSITIDAE) (FOSSIL)
- hodsonorum, Cymia hodsonorum B.M. Landau, F. Da Silva & S.M. Heitz, 2016 † - (MURICIDAE) (FOSSIL)
- hoeberti, Tapes hoeberti Š. Brusina, 1865 - syn of: Polititapes aureus (J.F. Gmelin, 1791) - (VENERIDAE)
- hoeblichi, Mytilopsis hoeblichi H. Schütt, 1989 - syn of: Mytilopsis sallei (C.A. Récluz, 1849) - (DREISSENIDAE)
- hoeckae, Serrulella hoeckae Binder, 2004 † - (CLAUSILIIDAE) (FOSSIL)
- hoeckae, Bania hoeckae (M. Harzhauser & E.E. Binder, 2004 †) - (HYDROBIIDAE) (FOSSIL)
- hoecki, Turbonilla hoecki P. Dautzenberg & H. Fischer, 1896 - syn of: Turbonilla hoeki P. Dautzenberg & H. Fischer, 1896 - (PYRAMIDELLIDAE)
- hoeferi, Sudeticeras hoeferi Patteisky, 1929 † - (ANTHRACOCERATIDAE) (FOSSIL)
- hoeferi, Paraceltites hoeferi C. Gemmellaro, 1887 † - (PARACELTITIDAE) (FOSSIL)
- hoeferi, Homoceratoides hoeferi Patteisky, 1929 † - (RAMOSITIDAE) (FOSSIL)
- Hoeferia, Genus Hoeferia Bittner, 1894 † (LIMOPSIDAE) (FOSSIL)
- hoegeri, Omphalocirrus hoegeri Heidelberger & Koch, 2005 † - (OMPHALOCIRRIDAE) (FOSSIL)
- hoegiana, Humboldtiana hoegiana E.C. Von Martens, 1892 - (HUMBOLDTIANIDAE)
- hoegiana praesidii, Humboldtiana hoegiana praesidii H.A. Pilsbry, 1939 - (HUMBOLDTIANIDAE)
- hoeisaeteri, Chrysallida hoeisaeteri A. Warén, 1991 - (PYRAMIDELLIDAE)
- hoeisaeteri, Turbonilla hoeisaeteri F. Lygre, J.A. Kongsrud & C.F.C. Schander, 2011 - (PYRAMIDELLIDAE)
- hoeki, Octopus hoeki L.M.A.O.E. Joubin, 1898 - (OCTOPODIDAE)
- hoeki, Turbonilla hoeki P. Dautzenberg & H. Fischer, 1896 - (PYRAMIDELLIDAE)
- hoeksemai, Epifungium hoeksemai (E. Gittenberger & J. Goud, 2000) - (EPITONIIDAE)
- hoeksemai, Alvania hoeksemai H.J. Hoenselaar & J. Goud, 1998 - (RISSOIDAE)
- hoeksemai, Callomphala hoeksemai R.G. Moolenbeek & H.J. Hoenselaar, 2008 - (SKENEIDAE)
- hoelderi, Kosmopleura hoelderi J. Gründel, 2003 † - (CRYPTAULACIDAE) (FOSSIL)
- Hoeloceras, Genus Hoeloceras Sweet, 1958 † (LAMBEOCERATIDAE) (FOSSIL)
- hoelzli, Euchilus hoelzli W.R. Schlickum, 1964 † - syn of: Ctyrokya hoelzli (W.R. Schlickum, 1964 †) - (BITHYNIIDAE) (FOSSIL)
- hoelzli, Ctyrokya hoelzli (W.R. Schlickum, 1964 †) - (RISSOOIDEA (UNASSIGNED)) (FOSSIL)
- hoeni, Bisatoceras hoeni Nassichuk, 1975 † - (BISATOCERATIDAE) (FOSSIL)
- hoeninghausi, Ammonites hoeninghausi von Buch, 1832 † - syn of: Koenenites hoeninghausi (von Buch, 1832 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- hoeninghausi, Goniatites hoeninghausi d'Archiac & Verneuil, 1842 † - syn of: Hoeninghausia archiaci Gürich, 1896 † - (GONIATITIDAE) (FOSSIL)
- hoeninghausi, Koenenites hoeninghausi (von Buch, 1832 †) - (KOENENITIDAE) (FOSSIL)
- hoeninghausi, Praeradiolites hoeninghausi (C. des Moulins, 1826 †) - (RADIOLITIDAE) (FOSSIL)
- Hoeninghausia, Genus Hoeninghausia Gurich , 1896 † (KOENENITIDAE) (FOSSIL)
- hoeninghausianus, Turbinilopsis hoeninghausianus (de Koninck, 1843 †) - (ANOMPHALIDAE) (FOSSIL)
- hoeninghausii, Opis hoeninghausii Klipstein, 1843 † - (ASTARTIDAE) (FOSSIL)
- hoennense, Mimimitoceras hoennense W. Korn, 1993 † - (PRIONOCERATIDAE) (FOSSIL)
- hoenselaari, Chrysallida hoenselaari J.J. Van Aartsen, E. Gittenberger & J. Goud, 2000 - (PYRAMIDELLIDAE)
- hoenselaari, Schwartziella hoenselaari E. Rolán & L. Luque, 2000 - (ZEBINIDAE)
- Hoenselaaria, Genus Hoenselaaria R.G. Moolenbeek, 2009 (EULIMIDAE)
- hoepeni, Hoepenites hoepeni M. Collignon, 1966 † - (AMMONOIDEA (unassigned)) (FOSSIL)
- hoepeni, Oxytropidoceras hoepeni M. Collignon 1936 † - (BRANCOCERATIDAE) (FOSSIL)
- hoepeni, Zaletrigonia hoepeni (Skwarko, 1963 †) - (IOTRIGONIIDAE) (FOSSIL)
- Hoepenites, syn of: Genus Menuites Spath , 1922 † (PACHYDISCIDAE) (FOSSIL)
- hoerleae, Anadara hoerleae E.H. Vokes, 1969 † - (ARCIDAE) (FOSSIL)
- hoerleae, Petricoxenica hoerleae E.H. Vokes, 1976 † - (VENERIDAE) (FOSSIL)
- hoerlei, Extractrix hoerlei A.A. Olsson, 1967 † - (CANCELLARIIDAE) (FOSSIL)
- hoerlei, Pterynotus hoerlei E.H. Vokes, 1970 † - (MURICIDAE) (FOSSIL)
- hoerlei, Turbinella hoerlei E.H. Vokes, 1984 † - (TURBINELLIDAE) (FOSSIL)
- hoernesanus, Theodoxus hoernesanus (C.G. Semper, 1867 †) - (NERITIDAE) (FOSSIL)
- Hoernesarca, Genus Hoernesarca Malatesta, 1974 † (NOETIIDAE) (FOSSIL)
- hoernesi, Solarium hoernesi Laube, 1867 † - syn of: Colpomphalus hoernesi (Laube, 1867 †) - (ARCHITECTONICIDAE) (FOSSIL)
- hoernesi, Europicardium hoernesi R. La Perna, 2016 † - (CARDIIDAE) (FOSSIL)
- hoernesi, Nemocardium hoernesi (G.P. Deshayes, 1858 †) - (CARDIIDAE) (FOSSIL)
- hoernesi, Megacardita hoernesi R. La Perna, O. Mandic & M. Harzhauser, 2017 † - (CARDITIDAE) (FOSSIL)
- hoernesi, Echinophoria hoernesi F. Sacco, 1890 † - syn of: Echinophoria haueri (R. Hoernes & M. Auinger, 1884 †) - (CASSIDAE) (FOSSIL)
- hoernesi, Coelostylina hoernesi Böhm, 1895 † - (COELOSTYLINIDAE) (FOSSIL)
- hoernesi, Caryocorbula revoluta hoernesi (A.E.M. Cossmann & M.A. Peyrot, 1909) - (CORBULIDAE)
- hoernesi, Corbula carinata hoernesi É.A. Benoist, 1873 † - (CORBULIDAE) (FOSSIL)
- hoernesi, Colpomphalus hoernesi (Laube, 1867 †) - (DISCOHELICIDAE) (FOSSIL)
- hoernesi, Euthriofusus hoernesi (É.A. Benoist, 1885 †) - (FASCIOLARIIDAE) (FOSSIL)
- hoernesi, Gastrochaena hoernesi É.A. Benoist, 1873 † - (GASTROCHAENIDAE) (FOSSIL)
- hoernesi, Hydrobia hoernesi Friedberg † - (HYDROBIIDAE) (FOSSIL)
- hoernesi, Lechritrochoceras hoernesi (Barrande, 1865 †) - (LECHRITROCHOCERATIDAE) (FOSSIL)
- hoernesi, Limea hoernesi G. Seguenza, 1879 † - (LIMIDAE) (FOSSIL)
- hoernesi, Callucina hoernesi (G.P. Deshayes, 1857 †) - (LUCINIDAE) (FOSSIL)
- hoernesi, Melanopsis hoernesi C.L.F. von Sandberger, 1872 † - syn of: Melanopsis subbuccinoides A.V.M.D. D'Orbigny, 1852 † - (MELANOPSIDAE) (FOSSIL)
- hoernesi, Mitra hoernesi C. Mayer, 1864 † - (MITRIDAE) (FOSSIL)
- hoernesi, Loxotomella hoernesi (Stoppani, 1858 †) - (MURICIDAE) (FOSSIL)
- hoernesi, Phos hoernesi C.G. Semper, 1861 † - (NASSARIIDAE) (FOSSIL)
- hoernesi, Natica hoernesi Fischer & R. Tournouer, 1873 † - (NATICIDAE) (FOSSIL)
- hoernesi, Nautilus hoernesi Stache, 1877 † - syn of: Tirolonautilus sebedinus (Stache, 1877 †) - (NAUTILIDAE) (FOSSIL)
- hoernesi, Nuculana hoernesi L.M.D. Bellardi, 1875 † - (NUCULANIDAE) (FOSSIL)
- hoernesi, Cyrtoceras hoernesi Barrande, 1865 † - syn of: Lechritrochoceras hoernesi (Barrande, 1865 †) - (ONCOCERIDA (unassigned)) (FOSSIL)
- hoernesi, Gyraulus hoernesi (H. Rolle, 1860) - (PLANORBIDAE)
- hoernesi, Pteria hoernesi G.P. Deshayes, 1858 † - (PTERIIDAE) (FOSSIL)
- hoernesi, Syrnola hoernesi (A. von Koenen, 1882 †) - (PYRAMIDELLIDAE) (FOSSIL)
- hoernesi, Raphitoma hoernesi (C. Mayer, 1869 †) - (RAPHITOMIDAE) (FOSSIL)
- hoernesi, Fossarulus hoernesi Š. Brusina, 1897 † - (RISSOOIDEA (UNASSIGNED)) (FOSSIL)
- hoernesi, Sinezona hoernesi C.G. Semper, 1865 - syn of: Sinezona ferriezi (J.C.H. Crosse, 1867) - (SCISSURELLIDAE)
- hoernesi, Spirulirostra hoernesi Stur, 1870 † - (SPIRULIROSTRIDAE) (FOSSIL)
- hoernesi, Tirolonautilus hoernesi Stache, 1877 † - syn of: Tirolonautilus sebedinus (Stache, 1877 †) - (TAINOCERATIDAE) (FOSSIL)
- hoernesi, Strioterebrum hoernesi (A.H.E. Beyrich, 1854 †) - (TEREBRIDAE) (FOSSIL)
- hoernesi, Melania hoernesi Klipstein, 1843 † - (THIARIDAE) (FOSSIL)
- hoernesi, Valvata hoernesi Penecke, 1886 † - (VALVATIDAE) (FOSSIL)
- hoernesi, Viviparus hoernesi M. von Neumayr, 1869 † - (VIVIPARIDAE) (FOSSIL)
- hoernesi praeclausa, Natica hoernesi praeclausa F. Kautsky, 1925 † - (NATICIDAE) (FOSSIL)
- Hoernesia, Genus Hoernesia Laube, 1865 † (BAKEVELLIIDAE) (FOSSIL)
- hoernesiana, Thais hoernesiana (V. Pecchioli, 1864 †) - (MURICIDAE) (FOSSIL)
- Hoernesiella, Genus Hoernesiella Gugenberger, 1934 † (PTERIIDA (UNASSIGNED)) (FOSSIL)
- hoernesii, Cylichna hoernesii H.C. Weinkauff, 1866 - syn of: Pyrunculus hoernesii (H.C. Weinkauff, 1866) - (CYLICHNIDAE)
- hoernesii, Pyrunculus hoernesii (H.C. Weinkauff, 1866) - (RETUSIDAE)
- hoerninghausii, Limopsis hoerninghausii Müller 1847 † - (LIMOPSIDAE) (FOSSIL)
- hoeschae, Sculptaria hoeschae A. Zilch, 1951 - (SCULPTARIIDAE)
- hoesemanni, Bukobia hoesemanni H.R. Simroth, 1910 - (UROCYCLIDAE)
- hoessi, Fusinus hoessi Parsch in M. Hörnes, 1837 † - (FASCIOLARIIDAE) (FOSSIL)
- hoetzendorfii, Paratropites hoetzendorfii Diener, 1917 † - (TROPITIDAE) (FOSSIL)
- hoevelensis, Clymenia hoevelensis (Wedekind †) - (CLYMENIIDAE) (FOSSIL)
- hoevelensis, Gonioclymenia hoevelensis Wedekind, 1914 † - syn of: Gonioclymenia subcarinata (G.G. Münster, 1839 †) - (GONIOCLYMENIIDAE) (FOSSIL)
- Hoferia, syn of: Genus Hoeferia Bittner, 1894 † (LIMOPSIDAE) (FOSSIL)
- hoffae, Thuridilla hoffae T.M. Gosliner, 1995 - (PLAKOBRANCHIDAE)
- hoffeinsorum, Propupa hoffeinsorum Stworzewicz & B.M. Pokryszko, 2006 † - (VERTIGINIDAE) (FOSSIL)
- Hoffetrigonia, Genus Hoffetrigonia Suzuki, 1940 (TRIGONIOIDIDAE) (FOSSIL)
- hoffi, Canalispira hoffi (R.G. Moolenbeek & M.J. Faber, 1991) - (CYSTISCIDAE)
- hoffi, Prunum hoffi R.G. Moolenbeek & M.J. Faber, 1991 - syn of: Canalispira hoffi (R.G. Moolenbeek & M.J. Faber, 1991) - (MARGINELLIDAE)
- hoffmani, Euomphalus hoffmani Sowerby 1814 † - (EUOMPHALIDAE) (FOSSIL)
- hoffmani, Fusinus hoffmani Ward, 1992 † - (FASCIOLARIIDAE) (FOSSIL)
- hoffmani, Stegocoelia hoffmani B.S. Kues & Batten, 2001 † - (GONIASMATIDAE) (FOSSIL)
- hoffmani, Tenguella hoffmani Houart, 2017 - (MURICIDAE)
- hoffmani, Pseudomphalotrochus hoffmani E.G. Linsley & E.L. Yochelson, 1973 † - syn of: Pseudomphalotrochus gibsoni (L. Hoffman, 1969 †) - (OMPHALOTROCHIDAE) (FOSSIL)
- hoffmani, Hypergonia hoffmani B.S. Kues & Batten, 2001 † - (ORTHONEMIDAE) (FOSSIL)
- hoffmani, Patella hoffmani B.F. Kensley & Pether, 1986 † - (PATELLIDAE) (FOSSIL)
- hoffmani, Drepanotrema hoffmani F.C. Baker, 1941 - (PLANORBIDAE)
- hoffmani, Dorymenia hoffmani L. Salvini-Plawén, 1978 - (PRONEOMENIIDAE)
- hoffmani, Millerspira hoffmani (L.H. Gilbertson & E. Naranjo-Garcia, 1998) - (UROCOPTIDAE)
- hoffmannae, Pleurorima hoffmannae Blodgett & Johnson, 1992 † - (GOSSELETINIDAE) (FOSSIL)
- hoffmanni, Mesembrinus tripictus hoffmanni E.C. Von Martens, 1893 - (BULIMULIDAE)
- hoffmanni, Falcidens hoffmanni (H.A. Stork, 1939) - (CHAETODERMATIDAE)
- hoffmanni, Delima hoffmanni P. von Ströbel, 1854 - syn of: Delima latilabris (J.A. Wagner, 1829) - (CLAUSILIIDAE)
- hoffmanni, Zonitella hoffmanni (E.C. Von Martens, 1892) - (GASTRODONTIDAE)
- hoffmanni, Liburnica hoffmanni (E.A. Rossmässler, 1836) - (HELICIDAE)
- hoffmanni, Palermoceras hoffmanni (C. Gemmellaro, 1887 †) - (PALERMOCERATIDAE) (FOSSIL)
- hoffmanni walteri, Liburnica hoffmanni walteri (O. Böttger, 1886) - (HELICIDAE)
- Hoffmannia, syn of: Genus Palermoceras Zhou & Glenister, 2009 † (PALERMOCERATIDAE) (FOSSIL)
- Hoffmannola, Genus Hoffmannola E. Strand, 1932 (ONCHIDIIDAE)
- hoffmeisteri, Daronia hoffmeisteri H.S. Ladd, 1970 † - (NEOCYCLOTIDAE) (FOSSIL)
- hoffmeisteri, Minopa hoffmeisteri H.S. Ladd, 1966 - syn of: Calliotrochus marmoreus (W.H. Pease, 1861) - (TROCHIDAE)
- hoffmeyeri, Terebra hoffmeyeri R.T. Abbott, 1952 - syn of: Strioterebrum plumbeum (J.R.C. Quoy & J.P. Gaimard, 1833) - (TEREBRIDAE)
- hoffstetteri, Spisula hoffstetteri M. Cauquoin, 1969 - syn of: Spisula adamsi A.A. Olsson, 1961 - (MACTRIDAE)
- hoffstetteri, Pitar hoffstetteri E. Fischer-Piette, 1969 - (VENERIDAE)
- hofmani, Acteocina hofmani G.F. Angas, 1877 - (ACTEOCINIDAE)
- hofmani, Turbonilla hofmani G.F. Angas, 1877 - (PYRAMIDELLIDAE)
- hofmani, Retusa hofmani G.F. Angas, 1872 - (RETUSIDAE)
- hofmanni, Flemingites hofmanni Brühwiler & Bucher, 2012 † - (FLEMINGITIDAE) (FOSSIL)
- hofmanni, Spiralix hofmanni H.D. Boeters & G. Falkner, 2003 - (MOITESSIERIIDAE)
- hofmeisteri, Aulopoma hofmeisteri F.H. Troschel, 1847 - syn of: Aulopoma itieri hofmeisteri F.H. Troschel, 1847 - (CYCLOPHORIDAE)
- hofmeisteri, Aulopoma itieri hofmeisteri F.H. Troschel, 1847 - (CYCLOPHORIDAE)
- hogeana, Succinea virgata hogeana E.C. Von Martens, 1865 - (SUCCINEIDAE)
- hogeana, Holospira hogeana E.C. Von Martens, 1897 - (UROCOPTIDAE)
- hoggariensis, Pupoides hoggariensis P.M. Pallary, 1929 - syn of: Pupoides coenopictus (F.W. Hutton, 1834) - (PUPILLIDAE)
- hoggartae, Estea hoggartae C.J. Gabriel, 1956 - syn of: Pisinna costata (C. Hedley, 1911) - (ANABATHRIDAE)
- hoggi, Acanthoceras hoggi H.A. Leanza, 1970 † - syn of: Crioceratites yrigoyeni H.A. Leanza, 1970 † - (ACANTHOCERATIDAE) (FOSSIL)
- hoggi, Anchura hoggi L.W. Stephenson, 1941 † - (APORRHAIDAE) (FOSSIL)
- Hogolua, Genus Hogolua F.C. Baker, 1941 (TROCHOMORPHIDAE)
- hohenackeri, Bulimus hohenackeri I. Krynicki, 1837 - syn of: Georginapaeus hohenackeri (L. Pfeiffer, 1848) - (BULIMULIDAE)
- hohenackeri, Corbicula hohenackeri S. Clessin, 1879 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- hohenackeri, Georginapaeus hohenackeri (L. Pfeiffer, 1848) - (ENIDAE)
- hohenackeri, Belgrandiella hohenackeri (H.C. Küster, 1853) - (HYDROBIIDAE)
- hohenackeri, Turcorientalia hohenackeri H.C. Küster, 1853 - syn of: Belgrandiella hohenackeri (H.C. Küster, 1853) - (HYDROBIIDAE)
- hohenackeri, Doryssa hohenackeri (R.A. Philippi, 1851) - (PACHYCHILIDAE)
- hohenackeri intermedius, Buliminus hohenackeri intermedius A. Mousson, 1863 - syn of: Georginapaeus hohenackeri (L. Pfeiffer, 1848) - (ENIDAE)
- hohenackeri marginata, Belgrandiella hohenackeri marginata (C.A. Westerlund, 1881) - (HYDROBIIDAE)
- hoheneggeri, Amorina hoheneggeri (Uhlig, 1883 †) - (ANAHAMULINIDAE) (FOSSIL)
- hoheneggeri, Crioceras hoheneggeri Uhlig, 1883 † - syn of: Leroyceras hoheneggeri (Uhlig, 1883 †) - (CRIOCERATITIDAE) (FOSSIL)
- hoheneggeri, Leroyceras hoheneggeri (Uhlig, 1883 †) - (HEMIHOPLITIDAE) (FOSSIL)
- hoheneggeri, Karsteniceras hoheneggeri Vasicek & Wiedmann, 1994 † - (LEPTOCERATOIDIDAE) (FOSSIL)
- hoheneggeri, Leptoceratoides hoheneggeri Vasicek & Wiedmann, 1994 † - syn of: Karsteniceras hoheneggeri Vasicek & Wiedmann, 1994 † - (LEPTOCERATOIDIDAE) (FOSSIL)
- hoheneggeri, Nerinea hoheneggeri B.G. Peters, 1855 † - syn of: Eunerinea hoheneggeri (B.G. Peters, 1855 †) - (NERINEIDAE) (FOSSIL)
- hoheneggeri, Eunerinea hoheneggeri (B.G. Peters, 1855 †) - (NERINELLIDAE) (FOSSIL)
- hoheneggeri, Buccinaria hoheneggeri E.A.L. Kittl, 1887 - (RAPHITOMIDAE)
- hoheneggeri, Rissoina hoheneggeri Ascher, 1906 † - (RISSOINIDAE) (FOSSIL)
- hohenlimburgensis, Retispira hohenlimburgensis Heidelberger & Koch, 2005 † - (KNIGHTITIDAE) (FOSSIL)
- Hohenwarthia, syn of: Genus Hohenwartiana J.R. Bourguignat, 1864 (FERUSSACIIDAE)
- hohenwarti, Hohenwartiana hohenwarti (E.A. Rossmässler, 1839) - (FERUSSACIIDAE)
- Hohenwartiana, Genus Hohenwartiana J.R. Bourguignat, 1864 (FERUSSACIIDAE)
- hohhaidoensis, Mundiphaedusa micropeas hohhaidoensis (H.A. Pilsbry, 1901) - (CLAUSILIIDAE)
- hohorsti, Albinaria hohorsti H. Nordsieck, 1984 - (CLAUSILIIDAE)
- hohxilensis, Praechlamys hohxilensis Sha, 1995 † - (PECTINIDAE) (FOSSIL)
- hohxilensis, Arcavicula hohxilensis Sha, 1995 † - (PTERIIDAE) (FOSSIL)
- hoisaeteri, Teretia hoisaeteri Horro & Rolán, 2017 - (RAPHITOMIDAE)
- hojarasca, Microalcadia hojarasca (I. Richling, 2001) - (HELICINIDAE)
- hojeda, Gastrocopta hojeda H.A. Pilsbry - (GASTROCOPTIDAE)
- Hojeda, Genus Hojeda F.C. Baker, 1926 (SAGDIDAE)
- hojoensis, Eulima hojoensis M. Yokoyama, 1924 † - (EULIMIDAE) (FOSSIL)
- hokianga, Discotectonica hokianga (P. Vella, 1954 †) - (ARCHITECTONICIDAE) (FOSSIL)
- hokianga, Bathytoma hokianga C.R. Laws, 1947 † - (BORSONIIDAE) (FOSSIL)
- hokianga, Bembicium hokianga (C.R. Laws, 1948 †) - (LITTORINIDAE) (FOSSIL)
- Hokianga, Genus Hokianga Laws, 1947 † (RAPHITOMIDAE) (FOSSIL)
- hokkaidensis, Muusoctopus hokkaidensis (S.S. Berry, 1921) - (ENTEROCTOPODIDAE)
- hokkaidensis, Polypus hokkaidensis S.S. Berry, 1921 - syn of: Muusoctopus hokkaidensis (S.S. Berry, 1921) - (OCTOPODIDAE)
- hokkaidensis, Oxychilus hokkaidensis H.A. Pilsbry, 1928 - (OXYCHILIDAE)
- Hokkaidoconcha, Genus Hokkaidoconcha Kaim & al., 2008 † (PROVANNIDAE) (FOSSIL)
- HOKKAIDOCONCHIDAE - syn of Family: PROVANNIDAE
- hokkaidoensis, Anadara hokkaidoensis H. Noda, 1966 † - (ARCIDAE) (FOSSIL)
- hokkaidoensis, Trominina hokkaidoensis (I. Hayasaka & S. Uozumi, 1951 †) - (BUCCINIDAE) (FOSSIL)
- hokkaidoensis, Lirabuccinum fuscolabiatum hokkaidoensis unknown - (BUCCINIDAE)
- hokkaidoensis, Mundiphaedusa micropeas hokkaidoensis (H.A. Pilsbry, 1901) - (CLAUSILIIDAE)
- hokkaidoensis, Hanaia hokkaidoensis (Yabe & T. Nagao, 1928 †) - (GLYCYMERIDIDAE) (FOSSIL)
- hokkaidoensis, Obesotoma hokkaidoensis (P. Bartsch, 1941) - (MANGELIIDAE)
- hokkaidoensis, Saccella hokkaidoensis K. Oyama & A. Mizuno, 1958 † - (NUCULANIDAE) (FOSSIL)
- hokkaidoensis, Truncacila hokkaidoensis T. Nagao, 1932 † - (NUCULIDAE) (FOSSIL)
- hokkaidoensis, Pupilla hokkaidoensis J.C. Nekola, J. Coles & S. Chiba, 2014 - (PUPILLIDAE)
- hokkaidoensis, Pisidium hokkaidoensis Y.I. Starobogatov & al, 2004 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- hokkaidoensis, Tellina hokkaidoensis (T. Habe, 1961) - (TELLINIDAE)
- hokkaidoensis, Macoma hokkaidoensis K. Amano & K.A. Lutaenko, 1999 - (TELLINIDAE)
- hokkaidoensis, Tellina nitidula hokkaidoensis T. Habe, 1962 - (TELLINIDAE)
- hokkaidoensis, Valvata hokkaidoensis D. Miyadi, 1935 - (VALVATIDAE)
- hokkaidoensis, Liocyma hokkaidoensis T. Habe, 1951 - syn of: Liocyma fluctuosa (A.A. Gould, 1841) - (VENERIDAE)
- hokkaidonis, Microcystina hokkaidonis H.A. Pilsbry & Y. Hirase, 1905 - syn of: Nipponochlamys hokkaidonis (H.A. Pilsbry & Y. Hirase, 1905) - (ARIOPHANTIDAE)
- hokkaidonis, Lirabuccinum hokkaidonis (H.A. Pilsbry, 1901) - (BUCCINIDAE)
- hokkaidonis, Mirus japonicus hokkaidonis H.A. Pilsbry, 1901 - (ENIDAE)
- hokkaidonis, Nipponochlamys hokkaidonis (H.A. Pilsbry & Y. Hirase, 1905) - (HELICARIONIDAE)
- hokkaidonis, Stenothyra hokkaidonis J.T. Kuroda, 1962 - (STENOTHYRIDAE)
- hokodzensis, Cicatrites hokodzensis Luppov, 1949 † - (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- Hokonuia, Genus Hokonuia J.J. Sepkoski 2002 † (PTERIIDA (UNASSIGNED)) (FOSSIL)
- hokonuiensis, Scaphogonia hokonuiensis Fleming, 1987 † - (MYOPHORELLIDAE) (FOSSIL)
- hokurikuensis, Patinopecten tokyoensis hokurikuensis (Akiyama, 1962) † - (PECTINIDAE) (FOSSIL)
- hola, Candidula hola (J.R. Bourguignat, 1887) - (HYGROMIIDAE)
- holandae, Prunum holandae J. Espinosa & J.A. Ortea, 1999 - (MARGINELLIDAE)
- holandrei, Dactylioceras holandrei (A.V.M.D. D'Orbigny, 1845 †) - (DACTYLIOCERATIDAE) (FOSSIL)
- Holandriana, Genus Holandriana J.R. Bourguignat, 1884 (PLEUROCERIDAE)
- holandrii, Holandriana holandrii (C. Pfeiffer, 1828) - (PLEUROCERIDAE)
- holandrii, Melania holandrii C. Pfeiffer, 1828 - syn of: Holandriana holandrii (C. Pfeiffer, 1828) - (THIARIDAE)
- holandrii aequata, Holandriana holandrii aequata E.A. Rossmässler, 1837 - syn of: Holandriana holandrii agnata C. Pfeiffer, 1828 - (PLEUROCERIDAE)
- holandrii afra, Holandriana holandrii afra (E.A. Rossmässler, 1837) - (PLEUROCERIDAE)
- holandrii agnata, Holandriana holandrii agnata C. Pfeiffer, 1828 - (PLEUROCERIDAE)
- holandrii agnata, Melania holandrii agnata C. Pfeiffer, 1828 - syn of: Holandriana holandrii agnata C. Pfeiffer, 1828 - (THIARIDAE)
- holandrii costulata, Holandriana holandrii costulata (A. Schmidt, 1847) - (PLEUROCERIDAE)
- holandrii costulata, Melania holandrii costulata A. Schmidt, 1847 - syn of: Holandriana holandrii costulata (A. Schmidt, 1847) - (THIARIDAE)
- holandrii laevigata, Holandriana holandrii laevigata (E.A. Rossmässler, 1839) - (PLEUROCERIDAE)
- holandrii laevigata, Melania holandrii laevigata E.A. Rossmässler, 1839 - syn of: Holandriana holandrii laevigata (E.A. Rossmässler, 1839) - (THIARIDAE)
- holandrii legitima, Holandriana holandrii legitima (E.A. Rossmässler, 1839) - (PLEUROCERIDAE)
- holandrii legitima, Melania holandrii legitima E.A. Rossmässler, 1839 - syn of: Holandriana holandrii legitima (E.A. Rossmässler, 1839) - (THIARIDAE)
- holandrii montenegrina, Holandriana holandrii montenegrina (R. Walderdorff, 1864) - (PLEUROCERIDAE)
- holandrii montenegrina, Melania holandrii montenegrina R. Walderdorff, 1864 - syn of: Holandriana holandrii montenegrina (R. Walderdorff, 1864) - (THIARIDAE)
- holbeini, Taramelliceras holbeini (Oppel †) - (OPPELIIDAE) (FOSSIL)
- holboelli, Dolabrifera holboelli L.S.R. Bergh, 1872 - (APLYSIIDAE)
- holboelli, Colus holboelli (H.P.C. Møller, 1842) - (BUCCINIDAE)
- holboelli, Fusus holboelli H.P.C. Møller, 1842 - syn of: Colus holboelli (H.P.C. Møller, 1842) - (FASCIOLARIIDAE)
- holboelli tortuosus, Colus holboelli tortuosus L.A. Reeve, 1855 - (BUCCINIDAE)
- holbolli, Colus holbolli H.P.C. Møller, 1842 - syn of: Colus holboelli (H.P.C. Møller, 1842) - (BUCCINIDAE)
- holbollii, Polycera holbollii H.P.C. Møller, 1842 - syn of: Palio dubia (G.O. Sars, 1829) - (POLYCERIDAE)
- holboxiensis, Prunum carneum holboxiensis (K.T. Menke, 1828) - (MARGINELLIDAE)
- Holcauchen, Subgenus Pupopsis (Holcauchen) O.F. von Möllendorff, 1901 (ENIDAE)
- HOLCOBELIDAE Gustomesov, 1977 † - Family (CEPHALOPODA-COLEOIDEA [Subclass]-BELEMNITIDA [Order]) (FOSSIL)
- Holcobelus, Genus Holcobelus Eudes-Deslongchamps, 1878 † (HOLCOBELIDAE) (FOSSIL)
- HOLCODISCIDAE Spath, 1924 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-AMMONITIDA [Order]-PERISPHINCTOIDEA [Superfamily]) (FOSSIL)
- Holcodiscoides, Genus Holcodiscoides Anderson, 1958 † (KOSSMATICERATIDAE) (FOSSIL)
- Holcodiscus, Genus Holcodiscus Uhlig , 1882 † (HOLCODISCIDAE) (FOSSIL)
- Holcolissoceras, Genus Holcolissoceras Spath, 1928 † (PHYLLOCERATIDA (UNASSIGNED)) (FOSSIL)
- Holcolytoceras, Genus Holcolytoceras Quenstedt, 1885 † (LYTOCERATIDAE) (FOSSIL)
- Holcomphalia, syn of: Subgenus Pythia (Trigonopythia) W. Kobelt, 1898 (ELLOBIIDAE)
- Holconautilus, Genus Holconautilus Mojsisovics, 1902 † (TAINOCERATIDAE) (FOSSIL)
- holcophorus, Fasciolaria holcophorus K.H. Barnard, 1959 - syn of: Metzgeria holcophorus (K.H. Barnard, 1959) - (FASCIOLARIIDAE)
- holcophorus, Metzgeria holcophorus (K.H. Barnard, 1959) - (PTYCHATRACTIDAE)
- Holcophylloceras, Genus Holcophylloceras Spath , 1927 † (PHYLLOCERATIDAE) (FOSSIL)
- Holcopoma, syn of: Subgenus Cochlostoma (Auritus) C.A. Westerlund, 1883 (COCHLOSTOMATIDAE)
- Holcoptychites, Genus Holcoptychites Douvillé, 1910 † (NEOCOMITIDAE) (FOSSIL)
- Holcostephanus, syn of: Genus Olcostephanus Neumayr , 1875 † (OLCOSTEPHANIDAE) (FOSSIL)
- Holcostoma, Genus Holcostoma H. Adams & A. Adams, 1854 (PLANAXIDAE)
- Holcotachea, syn of: Genus Cepaea F. Held, 1837 (HELICIDAE)
- Holcoteuthis, syn of: Genus Schwegleria Riegraf , 1980 † (PASSALOTEUTHIDIDAE) (FOSSIL)
- holdgatei, Balea holdgatei R.C. Preece & E. Gittenberger, 2003 - (CLAUSILIIDAE)
- holdsworthana, Minolia holdsworthana G. Nevill & H. Nevill, 1871 - syn of: Conotalopia musiva (A.A. Gould, 1861) - (SOLARIELLIDAE)
- holdsworthana, Pseudominolia holdsworthana G. Nevill & H. Nevill, 1871 - syn of: Conotalopia musiva (A.A. Gould, 1861) - (TROCHIDAE)
- holdsworthana, Isanda holdsworthana G. Nevill & H. Nevill, 1871 - syn of: Conotalopia musiva (A.A. Gould, 1861) - (TROCHIDAE)
- holdsworthi, Vitreobalcis holdsworthi (C.B. Adams, 1874) - (EULIMIDAE)
- holei, Mipus holei R.B. Hinds, 1844 - syn of: Coralliophila hotei (S. Kosuge, 1985) - (MURICIDAE)
- holemani, Conus holemani G.W. Nowell-Usticke, 1968 - syn of: Tenorioconus cedonulli (C. Linnaeus, 1767) - (CONIDAE)
- holeylandica, Fasciolaria holeylandica E.J. Petuch, 1994 † - (FASCIOLARIIDAE) (FOSSIL)
- holeylandicum, Sinistrofulgur holeylandicum E.J. Petuch, 1994 † - (BUSYCONIDAE) (FOSSIL)
- holeylandicus, Lobatus mayacensis holeylandicus E.J. Petuch, 1994 † - (STROMBIDAE) (FOSSIL)
- holguinense, Farcimen ungula holguinense C. de la Torre & P. Bartsch, 1942 - (MEGALOMASTOMIDAE)
- holguinense, Chondropoma holguinense (C.G. Aguayo, 1944) - (POMATIIDAE)
- holguinensis, Troschelviana holguinensis (C.G. Aguayo, 1932) - (HELICINIDAE)
- holguinensis, Caracolus marginella holguinensis W.J. Clench - (PLEURODONTIDAE)
- holguinensis, Annularisca holguinensis C. de la Torre & P. Bartsch, 1941 - (POMATIIDAE)
- holguinensis, Hojeda holguinensis W.J. Clench & C.G. Aguayo, 1953 - (SAGDIDAE)
- holguinensis, Torrecoptis holguinensis (C.G. Aguayo, 1934) - (UROCOPTIDAE)
- holguinensis alcaldei, Annularisca holguinensis alcaldei C.G. Aguayo & M.I. Sánchez Roig, 1949 - (POMATIIDAE)
- holguinera, Volvarina holguinera J. Espinosa, J.A. Ortea & Y.L. Diez, 2015 - (MARGINELLIDAE)
- Holkeion, Genus Holkeion H.H. Godwin-Austen, 1908 (ARIOPHANTIDAE)
- holkosa, Mitra holkosa B.Q. Li, S.P. Zhang & X.Z. Li, 2005 - (MITRIDAE)
- Hollabrunnella, Genus Hollabrunnella H. Nordsieck, 2007 † (CLAUSILIIDAE) (FOSSIL)
- hollabrunnensis, Hollabrunnella hollabrunnensis (H. Schütt, 1967 †) - (CLAUSILIIDAE) (FOSSIL)
- hollabrunnensis, Mohrensternia hollabrunnensis T. Kowalke & M. Harzhauser, 2004 † - (RISSOIDAE) (FOSSIL)
- hollandae, Tmetoceras hollandae (Buckman) † - (HILDOCERATIDAE) (FOSSIL)
- hollandi, Discogymnites hollandi (McLearn, 1948 †) - (GYMNITIDAE) (FOSSIL)
- hollandi, Alcadia hollandi (C.B. Adams, 1849) - (HELICINIDAE)
- hollandi, Monocondylaea hollandi A.E. Ortmann, 1921 - syn of: Monocondylaea corrientesensis D'Orbigny, 1836 - (MYCETOPODIDAE)
- hollandi, Prionites hollandi McLearn, 1945 † - (PRIONITIDAE) (FOSSIL)
- hollandi, Anagymnites hollandi McLearn, 1948 † - syn of: Discogymnites hollandi (McLearn, 1948 †) - (PROTEUSITIDAE) (FOSSIL)
- hollandi, Calyptraphorus hollandi A.E.M. Cossmann & G. Pissarro, 1909 † - (ROSTELLARIIDAE) (FOSSIL)
- hollandi, Hyalosagda hollandi (C.B. Adams, 1849) - (SAGDIDAE)
- hollandi, Ravenia hollandi J. Henderson, 1898 - syn of: Spiraxis adamsianus L. Pfeiffer, 1852 - (SPIRAXIDAE)
- hollandi, Turritella hollandi A.E.M. Cossmann & G. Pissarro, 1909 † - (TURRITELLIDAE) (FOSSIL)
- hollandi, Bactrocoptis hollandi (C.B. Adams, 1850) - (UROCOPTIDAE)
- hollandiana, Fadyenia hollandiana (C.B. Adams, 1850) - (HELICINIDAE)
- Hollandites, Genus Hollandites Fantini Sestini, 1988 † (BEYRICHITIDAE) (FOSSIL)
- hollandrei, Coeloceras hollandrei d'Orbigny, 1844 † - (COELOCERATIDAE) (FOSSIL)
- hollandrii, Holandriana hollandrii C. Pfeiffer, 1828 - syn of: Holandriana holandrii (C. Pfeiffer, 1828) - (PLEUROCERIDAE)
- hollardi, Paranarcestes hollardi Becker & House, 1994 † - (ANARCESTIDAE) (FOSSIL)
- hollardi, Acutimitoceras hollardi Bockwinkel & Ebbighausen, 2006 † - (GATTENDORFIIDAE) (FOSSIL)
- hollardi, Deiroceras hollardi Kröger, 2008 † - (ORMOCERATIDAE) (FOSSIL)
- hollardi, Protocanites hollardi W. Korn & al., 2002 † - (PROLECANITIDAE) (FOSSIL)
- hollboelli, Mangelia hollboelli H.P.C. Møller, 1842 - syn of: Astyris rosacea (A.A. Gould, 1840) - (MANGELIIDAE)
- hollboelli, Kaloplocamus hollboelli H.P.C. Møller, 1842 - syn of: Palio dubia (G.O. Sars, 1829) - (POLYCERIDAE)
- hollebeni, Nuculites hollebeni H.B. Geinitz, 1861 † - (MALLETIIDAE) (FOSSIL)
- hollebeni, Patella hollebeni K.C. Schauroth, 1854 † - (PATELLIDAE) (FOSSIL)
- hollicki, Modiolus hollicki J. Brown, 1905 † - (MYTILIDAE) (FOSSIL)
- hollicki, Propeamussium hollicki C.J. Maury, 1920 † - (PROPEAMUSSIIDAE) (FOSSIL)
- hollingsworthi, Pomacea hollingsworthi (T. Pain, 1946) - (AMPULLARIIDAE)
- hollingsworthi, Amphiscapha hollingsworthi (Knight, 1934 †) - (EUOMPHALIDAE) (FOSSIL)
- Hollisites, Genus Hollisites Inlay , 1957 † (POLYPTYCHITIDAE) (FOSSIL)
- hollisteri, Sinistrofulgur hollisteri E.J. Petuch, 1994 † - (BUSYCONIDAE) (FOSSIL)
- hollisteri, Fasciolaria hollisteri N.E. Weisbord, 1962 - (FASCIOLARIIDAE)
- hollmanni, Tanea hollmanni G.T. Poppe, S.P. Tagaro & P. Stahlschmidt, 2015 - (NATICIDAE)
- hollowayi, Viriatellina hollowayi Alberti, 1997 † - (NOWAKIIDAE) (FOSSIL)
- hollowaysi, Macrosolen hollowaysi (J. de C. Sowerby †) - (MONTACUTIDAE) (FOSSIL)
- hollwedensis, Prodichotomites hollwedensis (Kemper, 1978 †) - (POLYPTYCHITIDAE) (FOSSIL)
- holmbergi, Mycetopus holmbergi M. Doello-Jurado, 1923 - syn of: Mycetopoda soleniformis D'Orbigny, 1835 - (MYCETOPODIDAE)
- holmbergi, Neolepton holmbergi D.G. Zelaya & C.F. Ituarte, 2003 - (NEOLEPTONIDAE)
- holmdalense, Latouchella holmdalense Peel, 1988 † - syn of: Dorispira holmdalense (Peel, 1988 †) - (COREOSPIRIDAE) (FOSSIL)
- holmdalense, Dorispira holmdalense (Peel, 1988 †) - (RUGAECONIDAE) (FOSSIL)
- holmesi, Cravenoceras holmesi Bisat, 1932 † - syn of: Glaphyrites holmesi (Bisat, 1932 †) - (CRAVENOCERATIDAE) (FOSSIL)
- holmesi, Ficus holmesi T.A. Conrad, 1867 † - (FICIDAE) (FOSSIL)
- holmesi, Glaphyrites holmesi (Bisat, 1932 †) - (GLAPHYRITIDAE) (FOSSIL)
- holmesi, Muensteroceras holmesi (Swallow, 1860 †) - (MUENSTEROCERATIDAE) (FOSSIL)
- holmesi, Vitiastraea holmesi H.S. Ladd, 1966 † - (TURBINIDAE) (FOSSIL)
- holmesi, Turritella holmesi (W.H. Dall, 1892 †) - (TURRITELLIDAE) (FOSSIL)
- holmesi, Eichwaldiella holmesi W.H. Dall, 1892 † - syn of: Turritella holmesi (W.H. Dall, 1892 †) - (TURRITELLIDAE) (FOSSIL)
- holmesii, Arca holmesii J.D. Kurtz, 1860 - syn of: Lunarca ovalis (J.G. Bruguière, 1789) - (ARCIDAE)
- holmesii, Anadara holmesii J.D. Kurtz, 1860 - syn of: Lunarca ovalis (J.G. Bruguière, 1789) - (ARCIDAE)
- holmesii, Uromitra holmesii W.H. Dall, 1890 † - (COSTELLARIIDAE) (FOSSIL)
- holmesii, Parvamussium holmesii (W.H. Dall, 1886) - (PROPEAMUSSIIDAE)
- holmesii, Cochliolepis holmesii (W.H. Dall, 1889) - (TORNIDAE)
- holmesii, Vitrinella holmesii W.H. Dall, 1889 - syn of: Cochliolepis holmesii (W.H. Dall, 1889) - (TORNIDAE)
- holmi, Adamsoceras holmi (Troedsson, 1926 †) - (ACTINOCERIDA (UNASSIGNED)) (FOSSIL)
- holmi, Nybyoceras holmi Sweet, 1958 † - (ARMENOCERATIDAE) (FOSSIL)
- holmi, Bathmoceras holmi Mutvei, 2015 † - (BATHMOCERATIDAE) (FOSSIL)
- holmi, Orthotheca holmi Cobbold, 1931 † - (CIRCOTHECIDAE) (FOSSIL)
- holmi, Microstomiceras holmi King, 1998 † - (CYCLOSTOMICERATIDAE) (FOSSIL)
- holmi, Cyrtodonta holmi Isberg, 1934 † - (CYRTODONTIDAE) (FOSSIL)
- holmi, Mytilopsis holmi A. d'Ailly, 1896 - syn of: Mytilopsis ornata (P.M.A. Morelet, 1885) - (DREISSENIDAE)
- holmi, Dreissena holmi A. d'Ailly, 1896 - syn of: Mytilopsis ornata (P.M.A. Morelet, 1885) - (DREISSENIDAE)
- holmi, Suecoceras holmi Patrunky, 1929 † - (ENDOCERATIDAE) (FOSSIL)
- holmi, Ruedemannia holmi (Lindström, 1884 †) - (LOPHOSPIRIDAE) (FOSSIL)
- holmi, Ormoceras holmi Troedsson, 1926 † - (ORMOCERATIDAE) (FOSSIL)
- holmi, Pleurotomaria holmi Lindström, 1884 † - syn of: Ruedemannia holmi (Lindström, 1884 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- Holmiceras, Genus Holmiceras Hyatt, 1894 † (LITUITIDAE) (FOSSIL)
- Holmitheca, Genus Holmitheca Sysoev, 1968 † (TETRATHECIDAE) (FOSSIL)
- holmwoodensis, Janeia holmwoodensis Dickins, 1963 † - (SOLEMYIDAE) (FOSSIL)
- holocenica, Turbonilla holocenica E. Robba, S.I. Di Geronimo, N. Chaimanee & al., 2004 - (PYRAMIDELLIDAE)
- holocyma, Lirophora holocyma J. Brown & H.A. Pilsbry, 1911 † - (VENERIDAE) (FOSSIL)
- hologlyptum, Cerion hologlyptum H.A. Pilsbry, 1902 - (CERIONIDAE)
- Hologyra, Genus Hologyra Koken , 1892 † (NATICOPSIDAE) (FOSSIL)
- hologyriformis, Palaeonarica hologyriformis Blaschke, 1905 † - syn of: Cassianopsis decussata (Münster, 1841 †) - (PALAEONARICIDAE) (FOSSIL)
- hologyroides, Naticopsis hologyroides Mansuy, 1914 † - syn of: Naticopsis priscus C. Gemmellaro, 1889 † - (DELPHINULOPSIDAE) (FOSSIL)
- hologyroides, Neritaria hologyroides F. Haas, 1953 † - (NERITARIIDAE) (FOSSIL)
- hololeuca, Drillia hololeuca N.H. Odhner, 1917 - syn of: Inquisitor spicata (R.B. Hinds, 1843) - (DRILLIIDAE)
- hololeukos, Calcatodrillia hololeukos R.N. Kilburn, 1988 - (PSEUDOMELATOMIDAE)
- Hololobus, syn of: Genus Tirolites Mojsisovics , 1879 † (TIROLITIDAE) (FOSSIL)
- hololoma, Aulacospira hololoma (O.F. von Möllendorff, 1887) - (HYPSELOSTOMATIDAE)
- Hololoma, syn of: Genus Schistoloma W. Kobelt, 1902 (PUPINIDAE)
- holomera, Oenopota holomera É.A.A. Locard, 1897 - (MANGELIIDAE)
- holomera, Gymnobela holomera É.A.A. Locard, 1897 - syn of: Gymnobela pyrrhogramma (P. Dautzenberg & H. Fischer, 1896) - (RAPHITOMIDAE)
- Holopea, Genus Holopea Hall, 1847 † (HOLOPEIDAE) (FOSSIL)
- HOLOPEIDAE Cossmann, 1908 † - Family (GASTROPODA-EOGASTROPODA [Subclass]-EUOMPHALINA [Order]-EUOMPHALOIDEA [Superfamily]) (FOSSIL)
- Holopella, Genus Holopella McCoy, 1851 † (LOXONEMATIDAE) (FOSSIL)
- HOLOPELLIDAE - syn of Family: LOXONEMATIDAE (FOSSIL)
- holopeltatus, Limifossor holopeltatus L. Salvini-Plawén, 1986 - (LIMIFOSSORIDAE)
- Holopholas, syn of: Genus Barnea A. Risso, 1826 (PHOLADIDAE)
- holophorus, Sedilia holophorus (W.H. Dall, 1890 †) - (HORAICLAVIDAE) (FOSSIL)
- holopiforme, Acanthonema holopiforme Sherzer & A.W. Grabau, 1910 † - (EUOMPHALIDAE) (FOSSIL)
- Holoplocamus, Genus Holoplocamus N.H. Odhner, 1926 (POLYCERIDAE)
- holosculpta, Stenothyra holosculpta R.A.M. Brandt, 1974 - syn of: Stenothyra koratensis holosculpta (R.A.M. Brandt, 1974) - (STENOTHYRIDAE)
- holosculpta, Stenothyra koratensis holosculpta (R.A.M. Brandt, 1974) - (STENOTHYRIDAE)
- holoserica, Anadara holoserica L.A. Reeve, 1843 - syn of: Anadara uropigimelana (J.B.G.M. Bory De Saint-Vincent, 1827) - (ARCIDAE)
- holoserica, Tacita holoserica V.J. Lus, 1971 - (BUCCINIDAE)
- holoserica, Basedowena holoserica F. Criscione & F. Köhler, 2016 - (CAMAENIDAE)
- holoserica, Glycymeris holoserica (L.A. Reeve, 1843) - (GLYCYMERIDIDAE)
- holoserica, Lucidella holoserica A.J. Wagner, 1911 - (HELICINIDAE)
- holoserica, Pseudonerita holoserica (A. Garrett, 1872) - (NERITIDAE)
- holoserica, Oliva holoserica F.P. Marrat, 1871 - syn of: Oliva tigrina J.B.P.A. Lamarck, 1811 - (OLIVIDAE)
- holoserica, Cyclomenia holoserica H.F. Nierstrasz, 1902 - (SIMROTHIELLIDAE)
- holosericea, Notoplax holosericea (H.F. Nierstrasz, 1905) - (ACANTHOCHITONIDAE)
- holosericea, Causa holosericea S.E. Studer, 1820 - syn of: Causa holosericum (S.E. Studer, 1820) - (HELICIDAE)
- holosericea, Pseudonerita holosericea (A. Garrett, 1872) - (NERITIDAE)
- holosericea, Cyclomenia holosericea H.F. Nierstrasz, 1902 - syn of: Cyclomenia holoserica H.F. Nierstrasz, 1902 - (SIMROTHIELLIDAE)
- holosericea, Venus holosericea J.F. Gmelin, 1791 - syn of: Pitar fulminatus (K.T. Menke, 1828) - (VENERIDAE)
- holosericeus, Bayerius holosericeus V.J. Lus, 1971 - syn of: Tacita holoserica V.J. Lus, 1971 - (BUCCINIDAE)
- holosericum, Causa holosericum (S.E. Studer, 1820) - (HELICIDAE)
- holosphaera, Diplodonta holosphaera J.C. Melvill, 1899 - (UNGULINIDAE)
- Holospira, Genus Holospira E.C. Von Martens, 1860 (UROCOPTIDAE)
- holostoma, Albinaria krueperi holostoma (O. Böttger, 1883) - (CLAUSILIIDAE)
- holostoma, Gonospira holostoma P.M.A. Morelet, 1875 - (STREPTAXIDAE)
- holostomus, Arcestes holostomus Mojsisovics, 1875 † - (ARCESTIDAE) (FOSSIL)
- holostomus, Bostryx holostomus (L. Pfeiffer, 1846) - (BULIMULIDAE)
- holothuriae, Galatheavalva holothuriae J. Knudsen, 1970 - (GALATHEAVALVIDAE)
- holothuriana, Phyllidiopsis holothuriana Á. Valdés, 2001 - (PHYLLIDIIDAE)
- holothuricola, Megadenus holothuricola O.W. Von Rosen, 1910 - (EULIMIDAE)
- holothuricola, Melanella holothuricola W. Adam, 1934 - syn of: Peasistilifer nitidula (W.H. Pease, 1860) - (EULIMIDAE)
- holotrema, Reinia holotrema (H.A. Pilsbry, 1902) - (CLAUSILIIDAE)
- holotricha, Kokotschashvilia holotricha (O. Böttger, 1884) - (HYGROMIIDAE)
- holotricha hamsikoeyensis, Kokotschashvilia holotricha hamsikoeyensis V. Hüdec, 1973 - (HYGROMIIDAE)
- holsatica, Alvania holsatica Anderson, 1960 † - (RISSOIDAE) (FOSSIL)
- holsingeri, Fontigens holsingeri L.R. Hubricht, 1976 - (AMNICOLIDAE)
- Holsingeria, Genus Holsingeria R. Hershler & F.G. Thompson, 1990 (HYDROBIIDAE)
- holstonense, Pleurobema oviforme holstonense I. Lea - (UNIONIDAE)
- holstonia, Lasmigona holstonia I. Lea, 1838 - (UNIONIDAE)
- holtedahli, Armenoceras holtedahli E. Strand, 1934 † - (ARMENOCERATIDAE) (FOSSIL)
- holtedahli, Omospira holtedahli E.L. Yochelson, 1963 † - (LOXONEMATIDAE) (FOSSIL)
- holtedahli, Straparollina holtedahli E. Strand, 1932 † - (STRAPAROLLINIDAE) (FOSSIL)
- holtedahli, Valcouroceras holtedahli Sweet, 1958 † - (VALCOUROCERATIDAE) (FOSSIL)
- holthuisi, Folinella holthuisi (J.J. Van Aartsen, E. Gittenberger & J. Goud, 1998) - (PYRAMIDELLIDAE)
- holthuisi, Odostomia holthuisi J.J. Van Aartsen, E. Gittenberger & J. Goud, 1998 - syn of: Folinella holthuisi (J.J. Van Aartsen, E. Gittenberger & J. Goud, 1998) - (PYRAMIDELLIDAE)
- holtianus, Uranoceras holtianus (Blake, 1882) † - (URANOCERATIDAE) (FOSSIL)
- holtonis, Anodontites elongata holtonis (I. Lea, 1857) - (MYCETOPODIDAE)
- holtonis, Anodonta holtonis I. Lea, 1857 - syn of: Anodontites elongata holtonis (I. Lea, 1857) - (UNIONIDAE)
- holtzi, Albinaria hippolyti holtzi (R. Sturany, 1904) - (CLAUSILIIDAE)
- holubi, Barrandicella holubi Horný, 2000 † - (ARCHINACELLIDAE) (FOSSIL)
- holubi, Steinmanella holubi (Kitchin, 1908) † - (STEINMANELLIDAE) (FOSSIL)
- holwilli, Linguatornoceras holwilli House, 2002 † - (TORNOCERATIDAE) (FOSSIL)
- Holyneconcha, Genus Holyneconcha Frýda, 1998 † (GASTROPODA INCERTAE SEDIS) (FOSSIL)
- Holynelites, Genus Holynelites Frýda , 1998 † (SOLENISCIDAE) (FOSSIL)
- holynensis, Prokopites holynensis Frýda, 1999 † - (EUPHEMITIDAE) (FOSSIL)
- holynensis, Katoptychia holynensis Frýda & K. Bandel, 1997 † - (LOXONEMATIDAE) (FOSSIL)
- holynensis, Murchisonia holynensis Frýda & Manda, 1997 † - (MURCHISONIIDAE) (FOSSIL)
- holynensis, Nanochilina holynensis Frýda, 1998 † - (SOLENISCIDAE) (FOSSIL)
- holynensis, Strabiella holynensis Prantl & Ružicka, 1954 † - (STRABIDAE) (FOSSIL)
- holzapfeli, Gonatocyrtoceras holzapfeli (E.S. Sobolev, 1912 †) - (ACLEISTOCERATIDAE) (FOSSIL)
- holzapfeli, Agoniatites holzapfeli (Wedekind, 1918 †) - (AGONIATITIDAE) (FOSSIL)
- holzapfeli, Paragalerus holzapfeli J. Perner, 1903 † - (CLISOSPIRIDAE) (FOSSIL)
- holzapfeli, Crickites holzapfeli Wedekind, 1913 † - (GEPHUROCERATIDAE) (FOSSIL)
- holzapfeli, Gephyroceras holzapfeli MANCA 18995 - syn of: Probeloceras lutheri (A.H. Clarke, 1885 †) - (GEPHUROCERATIDAE)
- holzapfeli, Gephuroceras holzapfeli A.H. Clarke, 1885 † - syn of: Probeloceras lutheri (A.H. Clarke, 1885 †) - (GEPHUROCERATIDAE) (FOSSIL)
- holzapfeli, Goniatites holzapfeli Wedekind, 1918 † - syn of: Agoniatites holzapfeli (Wedekind, 1918 †) - (GONIATITIDAE) (FOSSIL)
- holzapfeli, Osperlioceras holzapfeli (Schirardin, 1909 †) - (HILDOCERATIDAE) (FOSSIL)
- holzapfeli, Parodiceras holzapfeli (Frech, 1902 †) - (PARODOCERATIDAE) (FOSSIL)
- holzapfeli, Platyceras holzapfeli Spitz, 1907 † - (PLATYCERATIDAE) (FOSSIL)
- Holzapfelia, Genus Holzapfelia Cossmann, 1901 † (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Holzapfeloceras, Genus Holzapfeloceras Miller, 1932 † (SOBOLEWIIDAE) (FOSSIL)
- Holzbergia, Genus Holzbergia Torrens, 1971 † (TULITIDAE) (FOSSIL)
- holzingeri, Gastrocopta holzingeri V. Sterki, 1889 - (GASTROCOPTIDAE)
- holzmarki, Opisthostoma holzmarki F.G. Thompson, 1978 - (DIPLOMMATINIDAE)
- holzneri, Haliotis holzneri H. Hemphill, 1907 - syn of: Haliotis cracherodi W.E. Leach, 1814 - (HALIOTIDAE)
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