•   Extinct in the wild (EW): 13 species
•   Critically endangered (CR): 581 species
•   Endangered (EN): 507 species
•   Vulnerable (VU): 879 species
•   Near threatened (NT, LR/cd): 535 species
•   Least concern (LC): 2,437 species
•   Data deficient (DD): 1,988 species

Mollusc species (IUCN, 2020.1)

• 6941 extant species have been evaluated
• 4953 of those are fully assessed^{[lower-alpha 1]}
• 2972 are not threatened at present^{[lower-alpha 2]}
• 1967 to 3955 are threatened^{[lower-alpha 3]}
• 324 to 441 are extinct or extinct in the wild:
  • 311 extinct (EX) species^{[lower-alpha 4]}
  • 13 extinct in the wild (EW)
  • 117 possibly extinct [CR(PE)]
  • 0 possibly extinct in the wild [CR(PEW)]

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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

As of February 2021, the International Union for Conservation of Nature (IUCN) lists 299 extinct species, 149 possibly extinct species, 14 extinct in the wild species, two possibly extinct in the wild species, eight extinct subspecies, one possibly extinct subspecies, and five extinct in the wild subspecies of mollusc.^[1]

Gastropods

There are 267 extinct species, 134 possibly extinct species, 14 extinct in the wild species, two possibly extinct in the wild species, five extinct subspecies, one possibly extinct subspecies, and five extinct in the wild subspecies of gastropod evaluated by the IUCN.

Bivalvia

There are 32 extinct species, 15 possibly extinct species, and three extinct subspecies of bivalve evaluated by the IUCN.

Extinct species

Possibly extinct species

Extinct subspecies

See also

• List of least concern molluscs
• List of near threatened molluscs
• List of vulnerable molluscs
• List of endangered molluscs
• List of critically endangered molluscs
• List of data deficient molluscs

References