In September 2016, the International Union for Conservation of Nature (IUCN) listed 535 near threatened mollusc species. Of all evaluated mollusc species, 7.4% are listed as near threatened. The IUCN also lists nine mollusc subspecies as near threatened.
No subpopulations of molluscs have been evaluated by the IUCN.
This is a complete list of near threatened mollusc species and subspecies evaluated by the IUCN.
Gastropods There are 477 species and four subspecies of gastropod assessed as near threatened.
Stylommatophora Stylommatophora includes the majority of land snails and slugs. There are 252 species and four subspecies in the order Stylommatophora assessed as near threatened.
Zonitids
Clausiliids Species
Subspecies Alopia bielzii clathrata Macrogastra lineolata euzieriana
Helminthoglyptids
Camaenids Species
Subspecies Glyptorhagada wilkawillina umbilicata
Vertiginids
Cochlicellids
Trissexodontids
Helicids
Hygromiids Species
Subspecies Xerocrassa montserratensis betulonensis
Vitrinids
Chondrinids
Enids
Argnids
Other Stylommatophora species
Littorinimorpha There are 115 species in the order Littorinimorpha assessed as near threatened.
Hydrobiids
Bithyniids
Moitessieriids
Assimineids Omphalotropis circumlineata Omphalotropis zelriolata
Pomatiopsids
Stenothyrids Stenothyra khongi Stenothyra wykoffi
Sorbeoconcha
Architaenioglossa There are 41 species in the order Architaenioglossa assessed as near threatened.
Pupinids Pupina coxeni Pupina pfeifferi
Diplommatinids
Aciculids
Viviparids
Ampullariids
Craspedopomatids Craspedopoma hespericum Craspedopoma monizianum
Lower Heterobranchia species Valvata rhabdota Valvata stenotrema
Cycloneritimorpha
Hygrophila species
Neogastropoda There are 29 species in the order Neogastropoda assessed as near threatened.
Buccinids Ranella olearia Ranella parthenopaeum
Muricids Latiaxis babelis
Conids
Bivalvia There are 57 species and five subspecies in the class Bivalvia assessed as near threatened.
Unionida There are 49 species and five subspecies in the order Unionoida assessed as near threatened.
Unionids Species
Subspecies
Hyriids Southern river mussel (Hyridella narracanensis) South Esk freshwater mussel (Velesunio moretonicus)
Cardiida
Venerida
Cephalopods Giant Australian cuttlefish (Sepia apama)
See also Lists of IUCN Red List near threatened species List of least concern molluscs List of vulnerable molluscs List of endangered molluscs List of critically endangered molluscs List of recently extinct molluscs List of data deficient molluscs
References