A complete list of New Zealand Mollusca, after A W B Powell of the Auckland Institute and Museum. The underlined species link to detailed information on each. Use the Edit/Find option on your browser to quickly find the creature or group of interest. The numbers in brackets () behind each family indicate the number of species in that family. Land and freshwater snails have been coloured green.

For a complete and uptodate listing of all NZ molluscan in the entire EEZ, visit: http://toroa.otago.ac.nz/pubs/spencer/Molluscs/

PHYLUM MOLLUSCA

• Class Monoplacophora (No NZ representatives)
• Class Amphineura
• subclass Polyplacophora (56) Chiton-likes
• Order Neoloricata
• Sub order Lepidopleurina
• Lepidopleuridae (6) Chitons
• Hanleyidae (1)
• Sub order Ischnochitonina
• Ischnochitonidae (5)
• Callochitonidae (8)
• Schizochitonidae (2)
• Mopaliidae (7)
• Chitonidae (15) True Chitons
• Suborder Acanthochinonina
• Acanthochinonidae (12)
• Subclass Aplacophora (1) worm-like
• Order Neomeniida
• Proneomeniidae (1)
• Class Gastropoda
• Subclass Prosobranchia
• Order Archaeogastropoda
• Superfamily Pleurotomariacea
• Scissurellidae (17) minute shells
• Haliotidae (6) Pauas
• Superfamily Fissurellacea
• Fissurellidae (13) Slotlimpets, Shield Shells
• Diodorinae (6)
• Superfamily Patellacea True Limpets
• Patellidae (17)
• Acmaeidae (19)
• Lepetidae (2)
• Superfamily Trochacea Top Shells
• Trochidae (85)
• Stomatellidae (2)
• Turbinidae (13)
• Cyclostrematidae (76) Small flattened shells
• Superfamily Neritacea. Black periwinkles
• Neritidae (1)
• Hydrocenidae (1)
• Superfamily Cocculinacea
• Lepetellidae (6) Small, Limpet-like
• Order Mesogastropoda
• Superfamily Cyclophoracea Land snails
• Liareidae (32)
• Superfamily Littorinacea Periwinkles
• Littorinidae (11)
• Eatoniellidae (44)
• Superfamily Rissoacea
• Rissoidae (166)
• Cingulopsidae (10)
• Rastodenidae (4)
• Orbitestillidae (3)
• Rissoellidae (5)
• Omalogyridae (1)
• Tornidae (4)
• Hydrobiidae (17)
• Assimineidae (1)
• Tutuilanidae (1)
• Superfamily Cerithiacea Screw shells
• Turritellidae (17)
• Caecidae (1)
• Vermetidae (7)
• Siliquariidae (2)
• Melanopsidae (1)
• Planaxidae (1)
• Potamididae (2)
• Cerithiidae (5)
• Cerithiopsidae (28)
• Superfamily Eulimacea
• Aclidae (8)
• Eulimidae (21)
• Stiliferidae (2)
• Superfamily Strombacea
• Struthiolariidae (4)
• Superfamily Hipponicacea
• Fossaridae (7)
• Hipponicidae (1)
• Capulidae (3)
• Supefamily Calyptraeacea
• Trichotropidae (4)
• Calyptraeidae (7)
• Xenophoridae (1)
• Superfamily Lamellariacea
• Lamellariidae (6)
• Superfamily Cypraeacea
• Cypraeidae (2)
• Triviidae (1)
• Ovulidae (2)
• Superfamily Atlantacea
• Atlantidae (2)
• Carinariidae (2)
• Pterotracheidae (1)
• Superfamily Naticacea
• Naticidae (21)
• Superfamily Tonnacea
• Cassidae (11)
• Tonnidae (9)
• Ficidae (1)
• Cymatiidae (19)
• Bursidae (2)
• Order Neogastropoda
• Suborder Rachiglossa
• Superfamily Muricacea
• Columbariidae (5)
• Muricidae (56)
• Magilidae (3)
• Superfamily Buccinacea
• Columbellidae (49)
• Buccinidae (68)
• Nassariidae (4)
• Fasciolariidae (13)
• Superfamily Volutacea
• Olividae (6)
• Volutidae (19)
• Volutomitridae (7)
• Mitridae (5)
• Turbinellidae (1)
• Marginellidae (31)
• Cancellariidae (14)
• Suborder Toxoglossa
• Superfamily Conacea
• Turridae (96)
• Conidae (1)
• Terebridae (4)
• Order Heterogastropoda
• Suborder Ptenoglossa
• Superfamily Architectonicacea
• Architectonicidae (18)
• Mathildidae (4)
• Superfamily Epitoniacea
• Epitoniidae (14)
• Janthinidae (3)
• Superfamily Triphoracea
• Triphoridae (6)
• Subclass Opisthobranchia

For details on the world's sea slugs, visit the Museum of Australia's seaslug site: www.seaslugforum.net/species.htm
• Order Entomotaeniata
• Superfamily Pyramidellacea Minute snails
• Pyramidellidae (88)
• Order Cephalaspidea (Tectibranchiata)
• Superfamily Acteonacea
• Acteonidae (10)
• Ringiculidae (1)
• Hydatinidae (2)
• Superfamily Philinacea Small, slug-like
• Scaphandridae (4)
• Philinidae (5)
• Aglajidae (4)
• Superfamily Runcinacea Small, slug-like
• Runcinidae (3)
• Superfamily Diaphanacea
• Diaphanidae (4)
• Superfamily Bullacea
• Bullidae (2)
• Atyidae (3)
• Retusidae (8)
• Order Pteropoda Pelagic swimming gastropods
• Suborder Thecosomata
• Superfamily spiratellacea
• Limacinidae (5)
• Cavolinidae (12)
• Suborder Gymnosomata
• Pneumodermatidae (1)
• Peraclidae (1)
• Cymbuliidae (1)
• Order Anaspidea
• Superfamily Aplysiacea Sea Hares
• Applysiidae (8)
• Order Notaspidea
• Superfamily Pleurobranchacea Side-gill Slugs
• Pleurobranchiidae (5)
• Superfamily Umbraculacea Umbrella slugs
• Umbraculidae (1)
• Order Sacoglossa
• Superfamily elysiacea
• Stiligeridae (2)
• Elysiidae (1)
• Order Nudibranchia Sea slugs
• Suborder doridoida Dorids
• Superfamily Doridacea
• Dorididae (8)
• Glossodoridae (4)
• Okadidae (1)
• Superfamily Polyceratacea
• Gymnodorididae (2)
• Superfamily Onchodoridacea
• Onchodorididae (2)
• Goniodorididae (3)
• Superfamily Homoiodoridacea
• Homoiodorididae (2)
• Superfamily Dendrodoridacea
• Dendrodorididae (6)
• suborder Dendronotoida
• Superfamily Dendronotacea
• Tritoniidae (2)
• Phylliroidae (1)
• Dotidae (1)
• Suborder Arminoida
• Superfamily Arminacea
• Janolidae (4)
• Suborder Aeolidiida
• Flabellinidae (2)
• Eubranchidae (2)
• Fionidae (1)
• Aeolidiidae (3)
• Pseudovermidae (4)
• Glaucidae (1)
• Order Soleolifera
• Superfamily Onchidiacea
• Onchidiidae (5)
• Suborder Pulmonata
• Bassommatophora
• Superfamily Siphonariacea
• Trimusculidae (1)
• Siphonariidae (7)
• Superfamily Amphibolacea
• Amphibolidae (1)
• Superfamily Ellobiacea
• Ellobiidae (5)
• Superfamily Chiliniacea
• Latiidae (1)
• Superfaily Lymnaecea
• Lymnaeidae (2)
• Superfamily Ancylacea
• Ancylidae (2)
• Planorbidae (4)
• Order Stylommatophora Land snails
• Superfamily Succineacea
• Succineidae (1)
• Superfamily Athoracophoracea Leaf-veined land slugs
• Athoracophoridae (24)
• Superfamily Achantinellacea
• Achantinellidae (2)
• Superfamily Arinonacea
• Endodontidae (66)
• Flammulininae (71)
• Punctinae (79)
• Otoconchinae (4)
• Superfamily Zonitacea
• Zonitidae (1)
• Superfamily Streptaxacea
• Paryphantidae (69)
• Superfamily Bulimulacea
• Bulimulida (19)
• Class Scaphopoda (Tusk Shells)
• Dentaliidae (7)
• Siphonodentaliidae (3)
• Class Bivalvia (Bivalves)
• subclass Palaeotaxodonta
• Order Nuculoida
• Superfamily Nuculacea Nut Shells
• Nuculidae (16)
• Superfamily Nuculanacea
• Nuculanidae (12)
• Manzanellidae (1)
• Malletiidae (5)
• Order Solemyoida
• Superfamily Solemyacea
• Solemyidae (1)
• Subclass Pteriomorpha
• Order Arcoida
• Superfamily Arcacea
• Arcidae (4)
• Superfamily Limopsacea
• Limopsidae (2)
• Glycymeridae (2)
• Philobryidae (25)
• Order Mytiloida
• Superfamily Mytilacea
• Mytilidae (12)
• Superfamily Pinnacea
• Pinnidae (1)
• Order Pterioida
• Superfamily Pteriacea Pearl Oysters
• Pteriidae (1)
• Superfamily Ostreacea
• Ostreidae (6)
• Superfamily Pectinacea Scallops
• Pectinidae (18)
• Dimyidae (1)
• Superfamily Limacea
• Limidae (8)
• Superfamily Anomiacea
• Anomiidae (2)
• Order Unionoida
• Superfamily Unionacea
• Unionidae (3)
• Subclass Heterodonta
• Order Veneroida
• Superfamily Lucinacea
• Lucinidae (4)
• Thyasiridae (7)
• Ungulinidae (4)
• Superfamily Galeommatacea
• Erycinidae (19)
• Montacutidae (14)
• Galeommatidae (5)
• Superfamily Cyamiacea
• Cyamiidae (22)
• Neoleptonidae (12)
• Sportellidae (4)
• Superfamily Carditacea
• Carditidae (10)
• Condylocardiidae (14)
• Superfamily Crassatellacea
• Crassatellidae (10)
• Superfamily Cardiacea
• Cardiidae (1)
• Superfamily Mactracea
• Mactridae (9)
• Mesodesmatidae (4)
• Superfamily Tellinacea
• Tellinidae (8)
• Psammobiidae (6)
• Semelidae (4)
• Superfamily Gaimardiacea
• Gaimardiidae (6)
• Superfamily Corbiculacea
• Pisidiidae (3)
• Superfamily Veneracea
• Veneridae (22)
• Order Myoida
• Suborder Myina
• Superfamily Myacea
• Corbulidae (1)
• Superfamily Hiatellacea Gapers
• Hiatellidae (3)
• Suborder Pholadina
• Superfamily Pholadacea
• Pholadidae (4)
• Teredinidae (5)
• Subclass Anomalodesmata
• Order Pholadomyoida
• Superfamily Pholadomyacea Deep ocean
• Pholadomyidae (1)
• Superfamily Pandoracea
• Cleidothaeridae (1)
• Myochamidae (7)
• Periplomatidae (1)
• Thraciidae (5)
• Order Septibranchoida
• Superfamily Poromyacea
• Poromyidae (2)
• Verticordiidae (3)
• Cuspidariidae (12)
• Class Cephalopoda (Squid and octopus)
• Subclass Tetrabranchia (two pairs of gills)
• Nautilidae (2)
• Subclass Dibranchia (one pair of gills)
• Order Decapoda (ten arms)
• Superfamily Spirulacea
• Spirulidae (1)
• Superfamily Sepiacea
• Sepiidae (2)
• Sepiadariidae (1)
• Sepiolidae (1)
• Superfamily Loliginacea
• Loliginidae (1)
• Superfamily Architeutacea
• Enoploteuthidae (2)
• Onychoteuthidae (2)
• Gonatidae (1)
• Histioteuthidae (1)
• Ommastrephidae (1)
• Architeuthidae (5)
• Chiroteuthidae (1)
• Cranchiidae (5)
• Order Octopoda (eight arms)
• Suborder Cirrata
• Superfamily Vampyroteuthacea
• Vampyroteuthidae (1)
• Suborder Incirrata
• Superfamily Bolitaenacea
• Bolitaenidae (1)
• Vitreledonellidae (2)
• Superfamily Octopodacea: common octopus
• Octopodidae (6)
• Superfamily Argonautacea
• Argonautidae (4)
• Tremoctopodidae (1)