- 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)]
- ↑ excludes data deficient evaluations.
- ↑ NT, LR/cd, LC.
- ↑ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
- ↑ 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.
Contents
- Gastropods
- Vetigastropoda
- Stylommatophora
- Littorinimorpha
- Sorbeoconcha
- Architaenioglossa
- Lower Heterobranchia species
- Cycloneritimorpha
- Hygrophila species
- Neogastropoda
- Eupulmonata
- Archaeopulmonata
- Bivalvia
- Pectinida
- Unionida
- Venerida
- Mytilida
- Cephalopods
- Idiosepiida
- Octopuses
- Sepioloida
- Oegopsina species
- Bathyteuthida
- See also
- References
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.