Ha
- Haasica
- Haasodonta
- Habevolutopsius
- Hadopyrgus
- Hadra
- Hadriania
- Hadroconus
- Hadziella
- Haedropleura
Hainesia Pfeiffer, 1856
- Hainesia crocea (Sowerby, 1847)
Mollusca → Conchifera → Gastropoda → Caenogastropoda → Cyclophoroidea → Megalomastomatidae → Hainesiinae
- Haitia
- Halcampicola
- Halgerda
- Halgyrineum
- Halicardia
- Haliella
- Halielloides
- Haliotidae
- Haliotinella
- Haliotis
- Haliotoidea
- Haliphron
- Haliris
- Halistrepta
- Halistylus
- Hallaxa
- Haloceras
- Haloceratidae
- Halomenia
- Halonympha
- Halonymphidae
- Halopyrgus
- Halotapada
- Halystina
Hamacuna Cotton, 1931
- Hamacuna aupouria (Powell, 1937)
- Hamacuna gibbosa (Powell, 1937)
- Hamacuna hamata (Hedley & May, 1908)
- Hamacuna otagoensis (Powell, 1927)
Mollusca → Bivalvia → Carditoida → Carditoidea → Condylocardiidae → Carditellinae
- Hamineobulla
- Haminoea
- Haminoeidae
- Haminoeoidea
- Hamiota
- Hancockia
- Hancockiidae
- Hanleya
- Hanleyella
- Hanleyia
- Hanleyidae
- Hapalochlaena
- Haplocochlias
- Harmandia
Harmogenanina Germain, 1919
- Harmogenanina argentea Reeve, 1852
- Harmogenanina detecta (Férussac, 1827)
- Harmogenanina implicata Nevill, 1870
- Harmogenanina linophora Morelet, 1860
- Harmogenanina subdetecta Germain, 1921
Mollusca → Gastropoda → Pulmonata → Helicarionoidea → Helicarionidae → Helicarioninae
- Harmoniconus
- Harpa
- Harpago
- Harpagoherpia
- Harpidae
- Harpovoluta
- Harpulina
- Harvella
- Hastula
- Hastulopsis
- Hauffenia
- Haumea
- Haurakia
- Haustellotyphis
- Haustellum
- Haustrum
- Hawaiarca
- Hazuregyra
He
- Heathia
- Hebesiphon
- Hebetancylus
- Hebra
- Hedleyella
- Hedleyoconcha
- Hedleytriphora
- Hedylopsidae
- Hedylopsis
- Heideella
- Helcion
- Heleobia
- Heleobops
- Heliacus
Helicarion Férussac, 1821
- Helicarion aberrans Iredale, 1944
- Helicarion acutangula Adams, 1868
- Helicarion akibumii Kuroda, 1963
- Helicarion albellus Von Martens, 1867
- Helicarion alma Iredale, 1944
- Helicarion amiculus Iredale, 1945
- Helicarion ampla Reinhardt, 1883
- Helicarion aquavitae Scott, 1995
- Helicarion aquila Cox, 1868
- Helicarion awaensis Pilsbry, 1902
- Helicarion azumai Habe, 1948
- Helicarion belli Iredale, 1944
- Helicarion borealis Pilsbry, 1901
- Helicarion brazieri Cox, 1873
- Helicarion bullaceus Odhner, 1917
- Helicarion castanea Pfeiffer, 1853
- Helicarion catletti Brazier, 1872
- Helicarion ceratodes Gude, 1900
- Helicarion charis Iredale, 1944
- Helicarion circumdata Pilsbry, 1902
- Helicarion crassiaxis Kuroda, 1969
- Helicarion crenata Kuroda & Azuma, 1982
- Helicarion cuvieri Férussac, 1821
- Helicarion danjoensis Minato, 1974
- Helicarion delecta Iredale, 1944
- Helicarion depressus Jacobi, 1898
- Helicarion dispositus Iredale, 1941
- Helicarion dulcissima Iredale, 1944
- Helicarion etheridgei Brazier, 1889
- Helicarion flavescens Iredale, 1944
- Helicarion fraternus Iredale, 1945
- Helicarion freycineti Férussac, 1821
- Helicarion grata Iredale, 1944
- Helicarion hakonensis Pilsbry & Hirase, 1905
- Helicarion helenae Godwin-Austen, 1883
- Helicarion helenkingae Scott, 1995
- Helicarion hiraseana Pilsbry, 1901
- Helicarion hyaleus Bock, 1881
- Helicarion imitatrix Sykes, 1900
- Helicarion imperator (Gould, 1859)
- Helicarion infans (Pfeiffer, 1854)
- Helicarion insculpta Pfeiffer, 1846
- Helicarion iridis Hyman, 2007
- Helicarion kagaensis Pilsbry & Hirase, 1902
- Helicarion kiiensis Azuma, 1960
- Helicarion kimioi Azuma, 1960
- Helicarion koyamai Kuroda, 1953
- Helicarion koyanoi Habe, 1953
- Helicarion kreffti Cox, 1864
- Helicarion kurodai Habe, 1957
- Helicarion kuroshimana Hirase, 1908
- Helicarion lampra Pilsbry & Hirase, 1904
- Helicarion leopardina Iredale, 1941
- Helicarion leucospira Pfeiffer, 1857
- Helicarion lioderma Pilsbry, 1901
- Helicarion longa Pilsbry & Hirase, 1905
- Helicarion longissima Pilsbry & Hirase, 1909
- Helicarion masakii Kuroda, 1960
- Helicarion mastersi Cox, 1868
- Helicarion mathewsi Preston, 1913
- Helicarion megastoma Cox, 1868
- Helicarion miranda Iredale, 1944
- Helicarion monticola Kuroda & Abe, 1980
- Helicarion monticula Kuroda & Abe, 1980
- Helicarion mutsuensis Hirase, 1908
- Helicarion nachikoae Kuroda, 1953
- Helicarion nigra Quoy & Gaimard, 1832
- Helicarion nikkoensis Sorita & Kawana, 1983
- Helicarion novoguineensis Smith, 1887
- Helicarion ogasawarana Pilsbry, 1902
- Helicarion osimakiheijii Kuroda, 1953
- Helicarion planilabris Cox, 1866
- Helicarion planospirus (Pfeiffer, 1853)
- Helicarion porrectus Iredale, 1941
- Helicarion prensa Iredale, 1944
- Helicarion princeps Iredale, 1944
- Helicarion quelpartensis Pilsbry & Hirase, 1902
- Helicarion quintalae Cox, 1870
- Helicarion radiatulus (Möllendorff, 1897)
- Helicarion rapida Kuroda & Miyanaga, 1939
- Helicarion retinaculum Preston, 1913
- Helicarion robusta Gould, 1846
- Helicarion rosacea Iredale, 1944
- Helicarion rubicundus Dartnall & Kershaw, 1978
- Helicarion rugosa Fulton, 1910
- Helicarion satsumana Hirase, 1908
- Helicarion semicalcareus Schepman, 1896
- Helicarion septentrionalis Jacobi, 1898
- Helicarion serenus Pilsbry & Hirase, 1908
- Helicarion shinanoensis Pilsbry & Hirase, 1904
- Helicarion shiroyamaensis Kuroda & Habe, 1954
- Helicarion sophiae Reeve, 1854
- Helicarion strangei Pfeiffer, 1850
- Helicarion subcrenulata Pilsbry, 1901
- Helicarion submissus Iredale, 1941
- Helicarion subrejectus Pilsbry & Hirase, 1908
- Helicarion superba Cox, 1871
- Helicarion tanzawaensis Sorita & Kawana, 1983
- Helicarion tenera Adams, 1868
- Helicarion teramachii Kuroda & Minato, 1976
- Helicarion testudo Preston, 1913
- Helicarion virens Pfeiffer, 1849
- Helicarion xenica Pilsbry & Hirase, 1903
Mollusca → Gastropoda → Pulmonata → Helicarionoidea → Helicarionidae → Helicarioninae
Helicarionidae
- Helicarionoidea
- Helicella
- Helicellidae
- Helicidae
- Helicinoidea
- Helicocranchia
- Helicofusus
- Helicoidea
- Heliconoides
- Helicopelta
- Helicoradomenia
- Helicorbis
- Helicostoa
- Helicostoidae
- Helicrenion
- Heligmopoma
- Helisoma
- Helluoherpia
- Helminthope
- Hemiaclis
- Hemiarthridae
- Hemiarthrum
- Hemicythara
- Hemidonax
- Hemifusus
Hemiglypta Möllendorff, 1893
- Hemiglypta blainvilleana Lea
- Hemiglypta cuvierana (Lea, 1893)
- Hemiglypta globosa Semper, 1870
- Hemiglypta iloilana Smith, 1932
- Hemiglypta microglypta Moellendorff, 1893
- Hemiglypta panayensis Broderip, 1842
- Hemiglypta semiglobosa (Pfeiffer)
- Hemiglypta semigranosa Sowerby, 1832
- Hemiglypta semperi Möllendorff
Mollusca → Gastropoda → Pulmonata → Helicarionoidea → Helicarionidae → Helicarioninae
Hemiglyptopsis Thiele, 1931
- Hemiglyptopsis fouillioyi Le Guillou, 1845
Mollusca → Gastropoda → Pulmonata → Helicarionoidea → Helicarionidae → Helicarioninae
- Hemilepton
- Hemilienardia
- Hemiliostraca
- Hemimarginula
- Hemimenia
- Hemimeniidae
- Hemimetis
- Hemipecten
- Hemipolygona
- Hemisinus
- Hemistena
- Hemistomia
- Hemitoma
- Henrigirardia
- Henrya
- Heraultia
- Here
- Herewardia
- Hermaea
- Hermaeidae
- Hermissenda
- Hermosita
- Hero
- Heroidae
- Herouvalia
- Herpetopoma
- Hertleinia
- Herviella
- Herviera
- Hespererato
- Hesperisternia
- Heteranomia
- Heterocardia
- Heterocithara
- Heteroclidus
- Heterodonax
- Heterodoris
- Heteroglypta
- Heteroherpia
- Heteroherpiidae
- Heterololigo
- Heteromacoma
- Heteroplocamus
- Heteropoma
- Heteroschismoides
- Heteroteuthis
- Heteroturris
- Hexabranchidae
- Hexabranchus
- Hexacorbula
- Hexaplex
Hi
Hiatella Bosc, 1801
- Hiatella arctica (Linnaeus, 1767)
- Hiatella arenacea (E. A. Smith, 1910)
- Hiatella australis (Lamarck, 1818)
- Hiatella azaria (Dall, 1881)
- Hiatella rugosa (Linnaeus, 1767)
Mollusca → Bivalvia → Euheterodonta → Hiatelloidea → Hiatellidae
Hiatella Bosc, 1801
- Hiatella antarctica (Philippi, 1845)
- Hiatella meridionalis (d'Orbigny, 1846)
Mollusca → Bivalvia → Euheterodonta → Anomalodesmata → Pandoroidea → Lyonsiidae
Red Hiatellida Carter, 2011
- †Nadporodica Edmondioidea King, 1850
Mollusca → Bivalvia → Heterodonta → Euheterodonta
Porodica Hiatellidae Gray, 1824
- Rodovi: Cyrtodaria, Hiatella, Panomya, Panopea
Mollusca → Bivalvia → Hiatelloidea
Nadporodica Hiatelloidea J.E. Gray, 1824
- Porodica: Hiatellidae Gray, 1824
Mollusca → Bivalvia → Heterodonta → Euheterodonta
- Hiatodoris
- Hindsiclava
- Hinea
- Hinemoa
- Hinnites
- Hippeutis
- Hipponicidae
- Hipponix
- Hippopus
- Hirthia
- Hirtomurex
- Hirtopelta
- Histiomena
- Histioteuthidae
- Histioteuthis
- Histoctopus
- Hitia
Ho
- Hoffmannola
Hojeda F.C. Baker, 1926
- Hojeda alveus (C.B. Adams, 1850)
- Hojeda boothiana (L. Pfeiffer, 1839)
- Hojeda gracilis (F. Poey, 1865)
- Hojeda holguinensis W.J. Clench & C.G. Aguayo, 1953
- Hojeda inaguensis C.D. Weinland, 1880
- Hojeda mayarina C.G. Aguayo, 1953
- Hojeda montetaurina (L. Pfeiffer, 1859)
- Hojeda translucens (J. Gundlach in L. Pfeiffer, 1860)
- Hojeda vanattai H.B. Baker, 1926
Mollusca → Gastropoda → Stylommatophora → Sagdoidea → Sagdidae
- Holandriana
- Holcostoma
- Holoplocamus
- Holsingeria
- Homalina
- Homalocantha
- Homalopoma
- Homoiodoris
- Hoplodoris
- Hoplopteron
- Horaiclavidae
- Horaiclavus
- Horatia
- Hormospira
- Horologica
Howearion Iredale, 1944
- Howearion hilli (Cox, 1873)
Mollusca → Gastropoda → Pulmonata → Helicarionoidea → Helicarionidae
- Hoyia
Hu
- Hubendickia
- Humilaria
- Hummelinckiella
- Humphreyia
- Hunkydora
Hunsteinia Iredale, 1941
- Hunsteinia achilles (Brazier, 1886)
- Hunsteinia armiti (Smith, 1895)
- Hunsteinia flyensis (Hedley, 1894)
- Hunsteinia foersteri (Kobelt, 1914)
- Hunsteinia hercules (Hedley, 1891)
Mollusca → Gastropoda → Pulmonata → Helicarionoidea → Helicarionidae
- Huonodon
- Huxleyia
Hy
- Hyala
- Hyalina
- Hyalocylis
- Hyalogyra
- Hyalogyrina
- Hyalogyrinidae
- Hyalokellia
- Hyalopecten
- Hyalorisia
- Hyaloteuthis
- Hybochelus
- Hydatina
- Hydrobia
- Hydrobiidae
- Hydrobioides
- Hydrocena
- Hydrococcidae
- Hydrococcus
- Hydroginella
- Hydrorissoia
- Hygromiidae
- Hygrophila
†Koljeno Hyolitha Marek, 1963
- †Hyolithida Mathew 1899
- †Hyolithomorpha
- †Orthothecida Marek 1966
- †Orthothecimorpha
Animalia → Bilateria → Protostomia → Mollusca
†Red Hyolithida Sysojev, 1957 †
- †Aimitus
- †Altaicornus
- †Amydaicornus
- †Anabaricornus
- †Angusticornidae
- †Angusticornus
- †Atdabanithes
- †Australothecidae Malinky 2009
- †Borealicornus
- †Brevilabiatus
- †Carinolithidae Valent et al. 2011
- †Cavernolites
- †Crestjahitidae Syssoiev 1968
- †Decipilites
- †Doescherina
- †Elegantilites
- †Emarites
- †Erraticornus
- †Firmicornus
- †Galicornus
- †Gompholites
- †Goniocornus
- †Grantitheca
- †Haplophrentis
- †Hyolithes d'Eichwald 1840
- †Hyolithidae Nicholson 1889
- †Hyolithina Mathew 1899
- †Hyptiotheca Bengtson et al. 1990
- †Ingolitotheca
- †Insignicornus
- †Insolitotheca Landing and Bartowski 1996
- †Jacuticornus
- †Jacutolitus
- †Jincelites Valent et al. 2009
- †Joachimilites
- †Ketemecornus
- †Kuonamkicornus
- †Laticornus Missarzhevsky and Mambetov 1981
- †Lenalitus
- †Lirotheca
- †Matthevina Fisher 1962
- †Maxilites Marek 1972
- †Meitanovitus Qian 1978
- †Nelegerocornidae Meshkova 1974
- †Neopauxillites
- †Nitoricornus
- †Notabilitus
- †Oblisicornus
- †Oboedalites
- †Oxytus
- †Paracornus Malinky and Skovsted 2004
- †Parakolithes He et al. 1984
- †Parakorilithes
- †Parkula Bengtson et al. 1990
- †Patholites
- †Pauxillites
- †Pauxillitidae Marek 1967
- †Planotheca
- †Rarissimetus
- †Rodentilites
- †Similothecidae Malinky 1988
- †Slapylites
- †Tajinella
- †Tizilites
- †Tulenicornus
- †Virgatotheca
- †Virgulaxonaria
- †Yacutolithuus
- †Yankongovitus Qian 1978
†Podred Hyolithina Mathew 1899
- Ceratothecidae Fisher 1962
- Pterygothecidae Novak 1891
- Sulcavitidae Syssoiev 1958
Mollusca → Hyolitha → Hyolithida
- Hyotissa
- Hypanis
- Hypermastus
- Hyphantosoma
- Hypomenia
- Hypotriphora
- Hypselodoris
- Hypterita
- Hyridella
- Hyriidae
- Hyriopsis
- Hysteroconcha