List of data deficient molluscs

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14 extinct in the wild mollusc species (0.20%)581 critically endangered mollusc species (8.4%)507 endangered mollusc species (7.3%)879 vulnerable mollusc species (13%)535 near threatened mollusc species (7.7%)2437 least concern mollusc species (35%)1988 data deficient mollusc species (29%)
Mollusc species (IUCN, 2020.1)
  • 6941 extant species have been evaluated
  • 4953 of those are fully assessed[a]
  • 2972 are not threatened at present[b]
  • 1967 to 3955 are threatened[c]
  • 324 to 441 are extinct or extinct in the wild:
    • 311 extinct (EX) species[d]
    • 13 extinct in the wild (EW)
    • 117 possibly extinct [CR(PE)]
    • 0 possibly extinct in the wild [CR(PEW)]
  1. ^ excludes data deficient evaluations.
  2. ^ NT, LR/cd, LC.
  3. ^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
  4. ^ Chart omits extinct (EX) species

In September 2016, the International Union for Conservation of Nature (IUCN) listed 1988 data deficient mollusc species.[1] Of all evaluated mollusc species, 27% 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[edit]

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

Vetigastropoda[edit]

Stylommatophora[edit]

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[edit]

Subulinids[edit]

Species

Subspecies

Achatinellids[edit]

Endodontids[edit]

Charopids[edit]

Helicarionids[edit]

Orthalicids[edit]

Euconulids[edit]

Rhytidids[edit]

Streptaxids[edit]

Species

Subspecies

Zonitids[edit]

Pupillids[edit]

Polygyrids[edit]

Species

Subspecies

Helminthoglyptids[edit]

Species

Subspecies

Camaenids[edit]

Lauriids[edit]

Vertiginids[edit]

Bradybaenids[edit]

Species

Subspecies

Helicids[edit]

Hygromiids[edit]

Enids[edit]

Other Stylommatophora[edit]

Species

Subspecies

Littorinimorpha[edit]

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

Strombids[edit]

Pomatiids[edit]

Hydrobiids[edit]

Cochliopids[edit]

Bithyniids[edit]

Species

Subspecies

Moitessieriids[edit]

Assimineids[edit]

Pomatiopsids[edit]

Lithoglyphids[edit]

Amnicolids[edit]

Stenothyrids[edit]

Iravadiids[edit]

Truncatellids[edit]

Sorbeoconcha[edit]

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

Batillarids[edit]

Pleurocerids[edit]

Melanopsids[edit]

Semisulcospirids[edit]

Thiarids[edit]

Pachychilids[edit]

Paludomids[edit]

Species

Subspecies

Architaenioglossa[edit]

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

Neocyclotids[edit]

Cyclophorids[edit]

Species

Subspecies

Pupinids[edit]

Diplommatinids[edit]

Aciculids[edit]

Viviparids[edit]

Ampullariids[edit]

Lower Heterobranchia species[edit]

Cycloneritimorpha[edit]

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

Helicinids[edit]

Species

Subspecies

Hydrocenids[edit]

Neritids[edit]

Hygrophila species[edit]

There are 197 Hygrophila species evaluated as data deficient.

Physids[edit]

Acroloxids[edit]

Planorbids[edit]

Lymnaeids[edit]

Chilinids[edit]

Latiids[edit]

Neogastropoda[edit]

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

Turrids[edit]

Marginellids[edit]

Buccinids[edit]

Muricids[edit]

Conids[edit]

Eupulmonata[edit]

Archaeopulmonata[edit]

Bivalvia[edit]

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

Pectinida[edit]

Unionida[edit]

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

Margaritiferids[edit]

Unionids[edit]

Hyriids[edit]

Iridinids[edit]

Mycetopodids[edit]

Venerida[edit]

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

Dreissenids[edit]

Sphaeriids[edit]

Species

Subspecies

Cyrenids[edit]

Species

Subspecies

Donacids[edit]

Solecurtids[edit]

Mytilida[edit]

Cephalopods[edit]

There are 291 cephalopod species evaluated as data deficient.

Idiosepiida[edit]

Octopuses[edit]

There are 34 octopus species evaluated as data deficient.

Umbrella octopuses[edit]

Argonautids[edit]

Cirroteuthids[edit]

Grimpoteuthis species[edit]

Sepioloida[edit]

There are 142 species in Sepioloida evaluated as data deficient.

Sepiids[edit]

Sepiolids[edit]

Sepiadariids[edit]

Oegopsina species[edit]

There are 104 Oegopsina species evaluated as data deficient.

Mastigoteuthidae[edit]

Enoploteuthids[edit]

Hooked squids[edit]

Chiroteuthids[edit]

Cranchiids[edit]

Octopoteuthids[edit]

Other Oegopsina species[edit]

Bathyteuthida[edit]

See also[edit]

References[edit]

  1. ^ "IUCN Red List version 2016-2". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.


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