As of September 2016, the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natur ...

(IUCN) lists 1988

data deficient A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessarily ...

mollusc species. 27% of all evaluated mollusc species are listed as data deficient. The IUCN also lists 40 mollusc subspecies as data deficient. No subpopulations of molluscs have been evaluated by the IUCN. This is a complete list of data deficient mollusc species and subspecies evaluated by the IUCN.

Gastropods The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. ...

There are 1526 species and 37 subspecies of gastropod evaluated as data deficient.

Vetigastropoda Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetigastropoda are sometimes treated as an order, although they are treated as an unranked clade in Bou ...

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Teinostoma fernandesi ''Teinostoma fernandesi'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Tornidae.Williams S. T., Karube S. & Ozawa T. (September 2008) "Molecular systematics of Vetigastropoda: Trochidae, Turbinid ...

'' *''

Teinostoma funiculatum ''Teinostoma funiculatum'' is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Tornidae.Williams S. T., Karube S. & Ozawa T. (September 2008) "Molecular systematics of Vetigastropoda: Trochidae, Turbinidae ...

Stylommatophora

Stylommatophora includes the majority of land snails and slugs. There are 392 species and 32 subspecies in the order Stylommatophora evaluated as data deficient.

Partulids

Subulinids

Species Subspecies *'' Opeas nothapalinus crenatum'' *'' Pseudoglessula leroyi fasciata''

Achatinellids

Endodontids

Charopids

Helicarionids

Orthalicids

Euconulids

Rhytidids

Streptaxids

Species Subspecies

Zonitids

Pupillids

Polygyrids

Species Subspecies

Helminthoglyptids

Species *

Shasta sideband The Shasta sideband (''Monadenia troglodytes'') is a species of gastropod in the subfamily Monadeniinae.MolluscaBase eds. (2021). MolluscaBase. Monadenia troglodytes troglodytes Hanna & A.G. Smith, 1933. Accessed through: World Register of Marin ...

''(Monadenia troglodytes)'' Subspecies

Camaenids

Lauriids

Vertiginids

Bradybaenids

Species Subspecies *'' Euhadra scaevola mikawa''

Helicids

Hygromiids

Enids

Other Stylommatophora

Species Subspecies * Idaho banded mountain snail ''(Oreohelix idahoensis idahoensis)'' * Carinated striate banded mountain snail ''(Oreohelix strigosa goniogyra)''

Littorinimorpha Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails ( marine species), but also including some freshwater snails ( aquatic species) and land snails ( terrestrial species).Bouchet P. & Rocroi J.-P. (Ed.); Fr ...

There are 565 species and one subspecies in the order Littorinimorpha evaluated as data deficient.

Strombids

*''

Ophioglossolambis violacea ''Ophioglossolambis violacea'' is a species of large sea snail, a marine gastropod mollusk in the family Strombidae family, the true conchs and their allies.Bouchet, P. (2012). Ophioglossolambis violacea. Accessed through: World Register of M ...

Pomatiids

Hydrobiids

Cochliopids

Bithyniids

Species Subspecies *'' Gabbiella humerosa tanganyicensis''

Moitessieriids

Assimineids

Pomatiopsids

Lithoglyphids

Amnicolids

Stenothyrids

Iravadiids

Truncatellids

Sorbeoconcha Sorbeoconcha is a taxonomic clade of snails, i.e. gastropods, mainly marine species with gills and opercula, within the clade Caenogastropoda. The taxon Sorbeoconcha was named by Winston Ponder and David R. Lindberg in 1997. Taxonomy 1997 taxo ...

There are 97 species and one subspecies in the order Sorbeoconcha evaluated as data deficient.

Batillarids

*''

Batillaria mutata ''Batillaria mutata'' is a species of small mudflat saltwater snail, a marine gastropod mollusk in the family Batillariidae, the horn snails. Distribution This species is endemic to Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ...

Pleurocerids

Melanopsids

Semisulcospirids

* Oasis juga ''(Juga laurae)''

Thiarids

Pachychilids

Paludomids

Species Subspecies *''

Cleopatra bulimoides pauli Cleopatra VII Philopator ( grc-gre, Κλεοπάτρα Φιλοπάτωρ}, "Cleopatra the father-beloved"; 69 BC10 August 30 BC) was Queen of the Ptolemaic Kingdom of Egypt from 51 to 30 BC, and its last active ruler.She was also ...

Architaenioglossa

There are 106 species and one subspecies in the order Architaenioglossa evaluated as data deficient.

Neocyclotids

Cyclophorids

Species Subspecies *''

Chamalychaeus itonis nakashimai ''Chamalycaeus'' is a genus of tropical land snails with an operculum, terrestrial gastropod mollusks in the family Alycaeidae. MolluscaBase eds. (2021). MolluscaBase. Chamalycaeus Möllendorff, 1897. Accessed through: World Register of Marine ...

Pupinids

Diplommatinids

Aciculids

Viviparids

Ampullariids

Lower Heterobranchia species

Cycloneritimorpha Cycloneritida (nerites and false-limpets) is an order of land snails, freshwater snails, and sea snails.MolluscaBase eds. (2020). MolluscaBase. Cycloneritida. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aph ...

There are 30 species and two subspecies in the order Cycloneritimorpha evaluated as data deficient.

Helicinids

Species Subspecies *'' Pleuropoma zigzac ponapense'' *''

Pleuropoma zigzac zigzac ''Pleuropoma'' is a genus of land snails with an operculum. It is a genus of terrestrial gastropod mollusks in the subfamily Helicininae of the family Helicinidae.MolluscaBase eds. (2021). MolluscaBase. Pleuropoma Möllendorff, 1893. Accessed ...

Hydrocenids

Neritids

Hygrophila species

There are 197 Hygrophila species evaluated as data deficient.

Physids

Acroloxids

Planorbids

Lymnaeids

Chilinids

Latiids

*''

Latia lateralis ''Latia lateralis'' is a species of small freshwater snail or limpet, an aquatic gastropod mollusc in the family Latiidae. Distribution This species is endemic to the North Island The North Island, also officially named Te Ika-a-Māui, ...

Neogastropoda Neogastropoda is an order of sea snails, both freshwater and marine gastropod molluscs. Description The available fossil record of Neogastropoda is relatively complete, and supports a widely accepted evolutionary scenario of an Early Cre ...

There are 113 species in the order Neogastropoda evaluated as data deficient.

Turrids

Marginellids

Buccinids

Muricids

Conids

Eupulmonata Eupulmonata is a taxonomic clade of air-breathing snails. The great majority of this group are land snails and slugs, but some are marine and some are saltmarsh snails that can tolerate salty conditions. Linnean taxonomy *Suborder Eupulmonata H ...

Archaeopulmonata

*'' Salinator sanchezi'' *''

Salinator swatowensis ''Salinator'' is a genus of small, air-breathing, terrestrial or semi- marine snails with an operculum, pulmonate gastropod molluscs in the subfamily Salinatorinae of the family Amphibolidae. MolluscaBase eds. (2022). MolluscaBase. Salinat ...

Bivalvia Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, biv ...

There are 171 species and three subspecies in the class Bivalvia evaluated as data deficient.

Pectinida

*'' Nodipecten magnificus''

Unionida

There are 95 species in the order Unionoida evaluated as data deficient.

Margaritiferids

*'' Margaritifera dahurica'' *''

Margaritifera laevis ''Margaritifera'' is a genus of freshwater mussels, aquatic bivalve molluscs in the family Margaritiferidae, the freshwater pearl mussels. MolluscaBase eds. (2021). MolluscaBase. Margaritifera Schumacher, 1815. Accessed through: World Registe ...

Unionids

Hyriids

Iridinids

Mycetopodids

*''

Anodontites elongatus ''Anodontites'' is a genus of freshwater mussels, aquatic bivalve mollusks in the family Mycetopodidae. ''Anodontites'' are present in South South is one of the cardinal directions or Points of the compass, compass points. The direction is t ...

'' *''

Anodontites trigonus ''Anodontites'' is a genus of freshwater mussels, aquatic bivalve mollusks in the family Mycetopodidae. ''Anodontites'' are present in South South is one of the cardinal directions or Points of the compass, compass points. The direction is ...

Venerida

There are 74 species and three subspecies in the order Veneroida evaluated as data deficient.

Dreissenids

*'' Dreissena iconica''

Sphaeriids

Species Subspecies *''

Musculium hartmanni naivashaens ''Musculium'' is a genus of small freshwater clams, aquatic bivalve molluscs in the family Sphaeriidae Sphaeriidae is a family of small to minute freshwater bivalve molluscs in the order Sphaeriida. In the US, they are commonly known as p ...

Cyrenids

Species Subspecies *''

Corbicula fluminalis cunningtoni ''Corbicula'' is a genus of freshwater and brackish water clams, aquatic bivalve mollusks in the family Cyrenidae, the basket clams.Gofas, S. (2015). Cyrenidae Gray, 1847. In: MolluscaBase (2015). Accessed through: World Register of Marine Sp ...

'' *''

Corbicula fluminalis tanganyicensis ''Corbicula'' is a genus of freshwater and brackish water clams, aquatic bivalve mollusks in the family Cyrenidae, the basket clams.Gofas, S. (2015). Cyrenidae Gray, 1847. In: MolluscaBase (2015). Accessed through: World Register of Marine ...

Cephalopods A cephalopod is any member of the molluscan Taxonomic rank, class Cephalopoda (Greek language, Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral symm ...

There are 291 cephalopod species evaluated as data deficient.

Idiosepiida Idiosepiidae is a family of mollusc in the class Cephalopoda. This family appears to be related to the cuttlefish in the order Sepiida and the bobtail squid in the order Sepiolida but the exact placement of this family within the Decapodifo ...

Octopuses An octopus ( : octopuses or octopodes, see below for variants) is a soft-bodied, eight- limbed mollusc of the order Octopoda (, ). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefis ...

Gastropods The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. ...

Vetigastropoda Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetigastropoda are sometimes treated as an order, although they are treated as an unranked clade in Bou ...

Other Stylommatophora

Littorinimorpha Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails ( marine species), but also including some freshwater snails ( aquatic species) and land snails ( terrestrial species).Bouchet P. & Rocroi J.-P. (Ed.); Fr ...

Sorbeoconcha Sorbeoconcha is a taxonomic clade of snails, i.e. gastropods, mainly marine species with gills and opercula, within the clade Caenogastropoda. The taxon Sorbeoconcha was named by Winston Ponder and David R. Lindberg in 1997. Taxonomy 1997 taxo ...

Lower Heterobranchia species

Cycloneritimorpha Cycloneritida (nerites and false-limpets) is an order of land snails, freshwater snails, and sea snails.MolluscaBase eds. (2020). MolluscaBase. Cycloneritida. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aph ...

Hygrophila species

Neogastropoda Neogastropoda is an order of sea snails, both freshwater and marine gastropod molluscs. Description The available fossil record of Neogastropoda is relatively complete, and supports a widely accepted evolutionary scenario of an Early Cre ...

Eupulmonata Eupulmonata is a taxonomic clade of air-breathing snails. The great majority of this group are land snails and slugs, but some are marine and some are saltmarsh snails that can tolerate salty conditions. Linnean taxonomy *Suborder Eupulmonata H ...

Bivalvia Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, biv ...

Cephalopods A cephalopod is any member of the molluscan Taxonomic rank, class Cephalopoda (Greek language, Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral symm ...

Idiosepiida Idiosepiidae is a family of mollusc in the class Cephalopoda. This family appears to be related to the cuttlefish in the order Sepiida and the bobtail squid in the order Sepiolida but the exact placement of this family within the Decapodifo ...

Octopuses An octopus ( : octopuses or octopodes, see below for variants) is a soft-bodied, eight- limbed mollusc of the order Octopoda (, ). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefis ...

Grimpoteuthis species

Oegopsina species

Other Oegopsina species

See also

References