List of data deficient molluscs

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.

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

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.

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

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

Species

Subspecies

Species

Subspecies

Species

Subspecies

Species

Subspecies

Species

Subspecies

Other Stylommatophora

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Species

Subspecies

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

Species

Subspecies

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

Species

Subspecies

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

Species

Subspecies

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

Species

Subspecies

There are 197 Hygrophila species evaluated as data deficient.

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

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

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

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

Species

Subspecies

Species

Subspecies

There are 291 cephalopod species evaluated as data deficient.

There are 34 octopus species evaluated as data deficient.

There are 142 species in Sepioloida evaluated as data deficient.

There are 104 Oegopsina species evaluated as data deficient.

Other Oegopsina species

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See also

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References

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  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.