List of least concern molluscs

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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.

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.

## Contents

* 1 Gastropods
* 1.1 Stylommatophora
* 1.1.1 Charopids
* 1.1.2 Streptaxids
* 1.1.3 Lauriids
* 1.1.4 Vertiginids
* 1.1.5 Cochlicellids
* 1.1.6 Trissexodontids
* 1.1.7 Helicids
* 1.1.8 Hygromiids
* 1.1.9 Vitrinids
* 1.1.10 Chondrinids
* 1.1.11 Enids
* 1.1.12 Argnids
* 1.1.13 Helicodontids
* 1.1.14 Orculids
* 1.1.15 Other Stylommatophora species
* 1.2 Littorinimorpha
* 1.2.1 Hydrobiids
* 1.2.2 Cochliopids
* 1.2.3 Bithyniids
* 1.2.4 Moitessieriids
* 1.2.5 Assimineids
* 1.2.6 Pomatiopsids
* 1.2.7 Amnicolids
* 1.2.8 Stenothyrids
* 1.2.9 Iravadiids
* 1.2.10 Other Littorinimorpha species
* 1.3 Sorbeoconcha
* 1.3.1 Pleurocerids
* 1.3.2 Melanopsids
* 1.3.3 Semisulcospirids
* 1.3.4 Thiarids
* 1.3.5 Pachychilids
* 1.3.6 Paludomids
* 1.3.7 Potamidids
* 1.4 Architaenioglossa
* 1.4.1 Cyclophorids
* 1.4.2 Pupinids
* 1.4.3 Diplommatinids
* 1.4.4 Aciculids
* 1.4.5 Viviparids
* 1.4.6 Ampullariids
* 1.4.7 Craspedopomatids
* 1.5 Lower Heterobranchia species
* 1.6 Cycloneritimorpha
* 1.6.1 Helicinids
* 1.6.2 Neritids
* 1.6.3 Neritiliids
* 1.7 Hygrophila species
* 1.7.1 Physids
* 1.7.2 Acroloxids
* 1.7.3 Planorbids
* 1.7.4 Lymnaeids
* 1.7.5 Chilinids
* 1.7.6 Latiids
* 1.8 Neogastropoda
* 1.8.1 Conids
* 1.9 Eupulmonata
* 1.10 Other gastropod species
* 2 Bivalvia
* 2.1 Unionida
* 2.1.1 Etheriids
* 2.1.2 Unionids
* 2.1.3 Hyriids
* 2.1.4 Iridinids
* 2.1.5 Mycetopodids
* 2.2 Cardiida
* 2.3 Arcida
* 2.4 Venerida
* 2.4.1 Dreissenids
* 2.4.2 Sphaeriids
* 2.4.3 Cyrenids
* 2.4.4 Donacids
* 2.4.5 Other Venerida species
* 2.5 Mytilida
* 3 Cephalopods
* 3.1 Octopuses
* 3.2 Sepioloida
* 3.2.1 Sepiids
* 3.2.2 Sepiolids
* 3.2.3 Sepiadariids
* 3.3 Oegopsina species
* 3.3.1 Enoploteuthids
* 3.3.2 Hooked squids
* 3.3.3 Chiroteuthids
* 3.3.4 Cranchiids
* 3.3.5 Gonatids
* 3.3.6 Ommastrephids
* 3.3.7 Histioteuthids
* 3.3.8 Pyroteuthids
* 3.3.9 Other Oegopsina species
* 3.4 Bathyteuthida
* 3.5 Spirulida
* 4 See also
* 5 References

## Gastropods

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

### Stylommatophora

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

#### Streptaxids

#### Lauriids

#### Vertiginids

#### Cochlicellids

#### Trissexodontids

#### Helicids

Species

Subspecies

* Hemicycla glyceia glyceia

#### Hygromiids

#### Vitrinids

#### Chondrinids

#### Enids

#### Argnids

#### Helicodontids

#### Orculids

#### Other Stylommatophora species

### Littorinimorpha

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

#### Hydrobiids

#### Cochliopids

#### Bithyniids

Species

Subspecies

* Gabbiella humerosa humerosa

#### Moitessieriids

#### Assimineids

#### Pomatiopsids

#### Amnicolids

#### Stenothyrids

#### Iravadiids

#### Other Littorinimorpha species

### Sorbeoconcha

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

#### Pleurocerids

#### Melanopsids

#### Semisulcospirids

* Black juga (Juga nigrina)

#### Thiarids

#### Pachychilids

#### Paludomids

Species

Subspecies

* Cleopatra bulimoides bulimoides

#### Potamidids

### Architaenioglossa

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

#### Cyclophorids

* Cyathopoma blandfordi

#### Pupinids

* Pupina difficilis

#### Diplommatinids

#### Aciculids

#### Viviparids

#### Ampullariids

#### Craspedopomatids

### Lower Heterobranchia species

### Cycloneritimorpha

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

#### Helicinids

#### Neritids

#### Neritiliids

* Platynerita rufa

### Hygrophila species

There are 188 Hygrophila species assessed as least concern.

#### Physids

#### Acroloxids

#### Planorbids

#### Lymnaeids

#### Chilinids

#### Latiids

* Latia neritoides

### Neogastropoda

#### Conids

### Eupulmonata

### Other gastropod species

## Bivalvia

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

### Unionida

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

#### Etheriids

* Bartlettia stefanensis
* Etheria elliptica

#### Unionids

#### Hyriids

#### Iridinids

Species

Subspecies

* Chambardia wahlbergi hartmanni

#### Mycetopodids

### Cardiida

* Boring clam (Tridacna crocea)

### Arcida

### Venerida

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

#### Dreissenids

#### Sphaeriids

#### Cyrenids

Species

Subspecies

* Corbicula fluminalis natalensis

#### Donacids

#### Other Venerida species

### Mytilida

## Cephalopods

There are 197 cephalopod species assessed as least concern.

### Octopuses

### Sepioloida

There are 45 species in Sepioloida assessed as least concern.

#### Sepiids

#### Sepiolids

#### Sepiadariids

* Koch's bottletail squid (Sepiadarium kochi)
* Sepioloidea magna

### Oegopsina species

There are 126 Oegopsina species assessed as least concern.

#### Enoploteuthids

#### Hooked squids

#### Chiroteuthids

#### Cranchiids

#### Gonatids

#### Ommastrephids

#### Histioteuthids

#### Pyroteuthids

#### Other Oegopsina species

### Bathyteuthida

* Deepsea squid (Bathyteuthis abyssicola)

### Spirulida

* Ram's horn squid (Spirula spirula)

## See also

* Lists of IUCN Red List least concern species
* List of near threatened 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

1. ↑ "IUCN Red List version 2016-2". International Union for Conservation of Nature and Natural Resources (IUCN). http://www.iucnredlist.org/. Retrieved 8 September 2016.

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