Wikipedia

List of least concern molluscs

In September 2016, the International Union for Conservation of Nature (IUCN) listed 2437 least concern mollusc species.[1] Of all evaluated mollusc species, 34% are listed as least concern. The IUCN also lists five mollusc subspecies as least concern.

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 least concern mollusc species and subspecies evaluated by the IUCN.

Gastropods

edit

There are 1944 species and three subspecies of gastropod assessed as least concern.

Stylommatophora

edit

Stylommatophora includes the majority of land snails and slugs. There are 599 species and one subspecies in the order Stylommatophora assessed as least concern.

Charopids

edit

Streptaxids

edit

Lauriids

edit

Vertiginids

edit

Cochlicellids

edit

Trissexodontids

edit

Helicids

edit

Species

Subspecies

Hygromiids

edit

Vitrinids

edit

Chondrinids

edit

Enids

edit

Argnids

edit

Helicodontids

edit

Orculids

edit

Other Stylommatophora species

edit

Littorinimorpha

edit

There are 311 species and one subspecies in the order Littorinimorpha assessed as least concern.

Hydrobiids

edit

Cochliopids

edit

Bithyniids

edit

Species

Subspecies

Moitessieriids

edit

Assimineids

edit

Pomatiopsids

edit

Amnicolids

edit

Stenothyrids

edit

Iravadiids

edit

Other Littorinimorpha species

edit

Sorbeoconcha

edit

There are 132 species and one subspecies in the order Sorbeoconcha assessed as least concern.

Pleurocerids

edit

Melanopsids

edit

Semisulcospirids

edit

Thiarids

edit

Pachychilids

edit

Paludomids

edit

Species

Subspecies

Potamidids

edit

Architaenioglossa

edit

There are 158 species in the order Architaenioglossa assessed as least concern.

Cyclophorids

edit

Pupinids

edit

Diplommatinids

edit

Aciculids

edit

Viviparids

edit

Ampullariids

edit

Craspedopomatids

edit

Lower Heterobranchia species

edit

Cycloneritimorpha

edit

There are 40 species in the order Cycloneritimorpha assessed as least concern.

Helicinids

edit

Neritids

edit

Neritiliids

edit

Hygrophila species

edit

There are 188 Hygrophila species assessed as least concern.

Physids

edit

Acroloxids

edit

Planorbids

edit

Lymnaeids

edit

Chilinids

edit

Latiids

edit

Neogastropoda

edit

Conids

edit

Eupulmonata

edit

Other gastropod species

edit

Bivalvia

edit

There are 296 species and two subspecies in the class Bivalvia assessed as least concern.

Unionida

edit

There are 193 species and one subspecies in the order Unionoida assessed as least concern.

Etheriids

edit

Unionids

edit

Hyriids

edit

Iridinids

edit

Species

Subspecies

Mycetopodids

edit

Cardiida

edit

Arcida

edit

Venerida

edit

There are 96 species and one subspecies in the order Veneroida assessed as least concern.

Dreissenids

edit

Sphaeriids

edit

Cyrenids

edit

Species

Subspecies

Donacids

edit

Other Venerida species

edit

Mytilida

edit

Cephalopods

edit

There are 197 cephalopod species assessed as least concern.

Octopuses

edit

Sepioloida

edit

There are 45 species in Sepioloida assessed as least concern.

Sepiids

edit

Sepiolids

edit

Sepiadariids

edit

Oegopsina species

edit

There are 126 Oegopsina species assessed as least concern.

Enoploteuthids

edit

Hooked squids

edit

Chiroteuthids

edit

Cranchiids

edit

Gonatids

edit

Ommastrephids

edit

Histioteuthids

edit

Pyroteuthids

edit

Other Oegopsina species

edit

Bathyteuthida

edit

Spirulida

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.


Retrieved from "https://en.wikipedia.org/w/index.php?title=List_of_least_concern_molluscs&oldid=1145206509"