List of recently extinct molluscs

As of September 2016, the International Union for Conservation of Nature (IUCN) lists 311 extinct species, 117 possibly extinct species, 13 extinct in the wild species, eight extinct subspecies, and five extinct in the wild subspecies of mollusc.[1][2]

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[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)]
  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

Gastropods

There are 281 extinct species, 109 possibly extinct species, 14 extinct in the wild species, five extinct subspecies, and five extinct in the wild subspecies of gastropod evaluated by the IUCN.

Patellogastropoda

Extinct species

Stylommatophora

Includes the majority of land snails and slugs.

Extinct species

Possibly extinct species

Extinct in the wild species

Extinct subspecies

  • Achatinella apexfulva vittata
  • Achatinella bulimoides rosea
  • Partula suturalis suturalis
  • Partula taeniata taeniata
  • Placostylus bivaricosus etheridgei

Extinct in the wild subspecies

  • Partula suturalis strigosa
  • Partula suturalis vexillum
  • Partula taeniata elongata
  • Partula taeniata nucleola
  • Partula taeniata simulans

Littorinimorpha

Extinct species

Possibly extinct species

  • Alzoniella galaica
  • Beddomeia tumida
  • Belgrandia moitessieri
  • Belgrandia varica
  • Belgrandiella boetersi
  • Belgrandiella cavernica
  • Belgrandiella kreisslorum
  • Belgrandiella multiformis
  • Bythinella eutrepha
  • Bythiospeum dubium
  • Bythiospeum gonostoma
  • Bythiospeum putei
  • Bythiospeum turritum
  • Dianella schlickumi
  • Falsipyrgula beysehirana
  • Gabbiella matadina
  • Graecoanatolica brevis
  • Graecoanatolica conica
  • Henrigirardia wienini
  • Hydrobia anatolica
  • Iglica gratulabunda
  • Islamia bendidis
  • Islamia graeca
  • Islamia hadei
  • Islamia pseudorientalica
  • Islamia zermanica
  • Kirelia carinata
  • Kubaryia pilikia
  • Beaver pond marstonia (Marstonia castor)
  • Ozark pyrg (Marstonia ozarkensis)
  • Mercuria punica
  • Ohridohauffenia minuta
  • Omphalotropis ingens
  • Paladilhiopsis janinensis
  • Potamopyrgus acus
  • Pseudogibbula cara
  • Sardohoratia sulcata
  • Soapitia dageti
  • Stocky pebblesnail (Somatogyrus crassus)
  • Tennessee pebblesnail (Somatogyrus currierianus)
  • Fluted pebblesnail (Somatogyrus hendersoni)
  • Atlas pebblesnail (Somatogyrus humerosus)
  • Dwarf pebblesnail (Somatogyrus nanus)
  • Spiralix corsica
  • Tanousia zrmanjae
  • Brune's tryonia (Tryonia brunei)
  • Valvatorbis mauritii
  • Zaumia sanctizaumi

Sorbeoconcha

Extinct species

  • Boulder snail (Athearnia crassa)
  • Short-spired elimia (Elimia brevis)
  • Closed elimia (Elimia clausa)
  • Fusiform elimia (Elimia fusiformis)
  • Shouldered elimia (Elimia gibbera)
  • High-spired elimia (Elimia hartmaniana)
  • Constricted elimia (Elimia impressa)
  • Hearty elimia (Elimia jonesi)
  • Teardrop elimia (Elimia lachryma)
  • Ribbed elimia (Elimia laeta)
  • Wrinkled elimia (Elimia macglameriana)
  • Rough-lined elimia (Elimia pilsbryi)
  • Pupa elimia (Elimia pupaeformis)
  • Pygmy elimia (Elimia pygmaea)
  • Cobble elimia (Elimia vanuxemiana)
  • Excised slitshell (Gyrotoma excisa)
  • Striate slitshell (Gyrotoma lewisii)
  • Pagoda slitshell (Gyrotoma pagoda)
  • Ribbed slitshell (Gyrotoma pumila)
  • Pyramid slitshell (Gyrotoma pyramidata)
  • Round slitshell (Gyrotoma walkeri)
  • Agate rocksnail (Leptoxis clipeata)
  • Oblong rocksnail (Leptoxis compacta)
  • Interrupted rocksnail (Leptoxis foremanii)
  • Maiden rocksnail (Leptoxis formosa)
  • Rotund rocksnail (Leptoxis ligata)
  • Lyrate rocksnail (Leptoxis lirata)
  • Bigmouth rocksnail (Leptoxis occultata)
  • Coosa rocksnail (Leptoxis showalterii)
  • Squat rocksnail (Leptoxis torrefacta)
  • Striped rocksnail (Leptoxis vittata)

Possibly extinct species

  • Mossy elimia (Elimia troostiana)
  • Melanoides agglutinans
  • Melanopsis germaini
  • Melanopsis infracincta
  • Melanopsis khabourensis
  • Melanopsis pachya

Extinct in the wild species

Architaenioglossa

Extinct species

Possibly extinct species

Cycloneritimorpha

Possibly extinct species

Hygrophila species

Extinct species

Possibly extinct species

  • Thickshell pondsnail (Stagnicola utahensis)

Bivalvia

Extinct species

Possibly extinct species

Extinct subspecies

  • Yellow-blossom (Epioblasma florentina florentina)
  • Epioblasma torulosa gubernaculum
  • Tubercled-blossom pearly mussel (Epioblasma torulosa torulosa)

See also

References
  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.
  2. "Table 9: Possibly Extinct and Possibly Extinct in the Wild Species (IUCN Red List version 2016-2)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 8 September 2016.
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