List of endangered invertebrates


In July 2016, the International Union for Conservation of Nature listed 1163 endangered invertebrate species. Of all evaluated invertebrate species, 6.4% were listed as endangered.
The IUCN also lists 36 invertebrate subspecies as endangered.
No subpopulations of invertebrates have been evaluated by the IUCN.
For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered invertebrates are listed separately. There are 2150 invertebrate species which are endangered or critically endangered.
Additionally 5278 invertebrate species are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed".
This is a complete list of endangered invertebrate species and subspecies as evaluated by the IUCN.

Molluscs">Mollusca">Molluscs

There are 507 mollusc species and nine mollusc subspecies assessed as endangered.

Gastropods">Gastropoda">Gastropods

There are 448 gastropod species and seven gastropod subspecies assessed as endangered.

[Stylommatophora]

Stylommatophora includes the majority of land snails and slugs. There are 187 species and two subspecies in the order Stylommatophora assessed as endangered.
Partulids">Partulidae">Partulids
Achatinellids">Achatinellidae">Achatinellids
Cerastids">Cerastidae">Cerastids
Endodontids">Endodontidae">Endodontids
Charopids">Charopidae">Charopids
Helicarionids">Helicarionidae">Helicarionids
Orthalicids">Orthalicidae">Orthalicids
Species
Subspecies
Streptaxids">Streptaxidae">Streptaxids
Species
Subspecies
  • ''Tayloria urguessensis subangulata''
    Camaenids">Camaenidae">Camaenids
Helicids">Helicidae">Helicids
Hygromiids">Hygromiidae">Hygromiids
Other Stylommatophora species

[Littorinimorpha]

There are 147 species and three subspecies in the order Littorinimorpha assessed as endangered.
Hydrobiids">Hydrobiidae">Hydrobiids
Bithyniids">Bithyniidae">Bithyniids
Species
'''Subspecies'''
Assimineids">Assimineidae">Assimineids
Pomatiopsids">Pomatiopsidae">Pomatiopsids
Other Littorinimorpha species

[Architaenioglossa]

Species
Subspecies

Hygrophila">Hygrophila (gastropod)">Hygrophila species

There are 22 Hygrophila species assessed as endangered.
Planorbids">Planorbidae">Planorbids
Lymnaeids">Lymnaeidae">Lymnaeids

[Bivalvia]

There are 57 species and two subspecies in the class Bivalvia assessed as endangered.

[Unionida]

There are 54 species and two subspecies in the order Unionoida assessed as endangered.
Margaritiferids">Margaritiferidae">Margaritiferids
Unionids">Unionidae">Unionids
Species
Subspecies
  • Catspaw
  • Rough rabbitsfoot
    Other Unionida species

Cephalopods">Cephalopoda">Cephalopods

[Cnidaria]

There are 28 species in the phylum Cnidaria assessed as endangered.

[Hydrozoa]

[Anthozoa]

There are 26 species in the class Anthozoa assessed as endangered.

Sea pens">Pennatulacea">Sea pens

  • ''Crassophyllum thessalonicae''

[Actiniaria]

Arthropods">Arthropoda">Arthropods

There are 616 arthropod species and 27 arthropod subspecies assessed as endangered.

Arachnids">Arachnida">Arachnids

There are 72 arachnid species assessed as endangered.

Malacostracans">Malacostraca">Malacostracans

Malacostraca includes crabs, lobsters, crayfish, shrimp, krill, woodlice, and many others. There are 170 malacostracan species and six malacostracan subspecies assessed as endangered.

Isopods">Isopoda">Isopods

Species
'''Subspecies'''

Amphipods">Amphipoda">Amphipods

Species
Subspecies
  • ''Niphargus elegans zagrebensis''

Decapods">Decapoda">Decapods

There are 154 decapod species and two decapod subspecies assessed as endangered.
Parastacids">Parastacidae">Parastacids
Gecarcinucids">Gecarcinucidae">Gecarcinucids
Atyids">Atyidae">Atyids
Cambarids">Cambaridae">Cambarids
Species
Subspecies
Potamids">Potamidae">Potamids
Palaemonids">Palaemonidae">Palaemonids
Species
Subspecies
  • ''Macrobrachium lamarrei lamarroides''
    Other decapod species

Insects">Insecta">Insects

There are 343 insect species and 21 insect subspecies assessed as endangered.

[Orthoptera]

There are 91 species and two subspecies in the order Orthoptera assessed as endangered.
Lentulids">Lentulidae">Lentulids
Tetrigids">Tetrigidae">Tetrigids
Euschmidtiids">Euschmidtiidae">Euschmidtiids
Mogoplistids">Mogoplistidae">Mogoplistids
Pamphagids">Pamphagidae">Pamphagids
Crickets">Gryllidae">Crickets
Species
Subspecies
  • ''Phaloria insularis insularis''
    Acridids">Acrididae">Acridids
Tettigoniids">Tettigoniidae">Tettigoniids
Phaneropterids">Phaneropteridae">Phaneropterids
Species
Subspecies
  • ''Isophya longicaudata longicaudata''

[Lepidoptera]

Lepidoptera comprises moths and butterflies. There are 51 species in the order Lepidoptera assessed as endangered.
Swallowtail butterflies">Papilionidae">Swallowtail butterflies
Lycaenids">Lycaenidae">Lycaenids
Nymphalids">Nymphalidae">Nymphalids
Other Lepidoptera species

Beetles">Coleoptera">Beetles

There are 72 beetle species assessed as endangered.
Dytiscids">Dytiscidae">Dytiscids
Stag beetles">Lucanidae">Stag beetles
Geotrupids">Geotrupidae">Geotrupids
Longhorn beetles">Cerambycidae">Longhorn beetles
Scarabaeids">Scarabaeidae">Scarabaeids
Other beetle species

[Odonata]

Odonata includes dragonflies and damselflies. There are 97 species and 19 subspecies in the order Odonata assessed as endangered.
Platystictids">Platystictidae">Platystictids
Platycnemidids">Platycnemididae">Platycnemidids
Species
'''Subspecies'''
Megapodagrionids">Megapodagrionidae">Megapodagrionids
Gomphids">Gomphidae">Gomphids
Species
'''Subspecies'''
Calopterygids">Calopterygidae">Calopterygids
Species
Subspecies
  • ''Matrona basilaris japonica''
    Coenagrionids">Coenagrionidae">Coenagrionids
Species
Subspecies
  • ''Pseudagrion torridum hulae''
    Aeshnids">Aeshnidae">Aeshnids
Species
'''Subspecies'''
Libellulids">Libellulidae">Libellulids
Species
'''Subspecies'''
Other Odonata
Species
'''Subspecies'''