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"