Samiksha Jaiswal (Editor)

List of endangered invertebrates

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As of July 2016, the International Union for Conservation of Nature (IUCN) lists 1163 endangered invertebrate species. 6.4% of all evaluated invertebrate species are listed as endangered. The IUCN also lists 36 invertebrate subspecies as endangered.

Contents

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 exintction". 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 (29% of those evaluated) 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

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

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
Achatinellids
Cerastids
Endodontids
Charopids
Helicarionids
Orthalicids

Species

Subspecies

  • Stock Island tree snail (Orthalicus reses reses)
    • Euconulids
    Streptaxids

    Species

    Subspecies

  • Tayloria urguessensis subangulata
    • Camaenids
    Helicids
    Hygromiids
    Other Stylommatophora species

    Littorinimorpha

    There are 147 species and three subspecies in the order Littorinimorpha assessed as endangered.

    Hydrobiids
    Bithyniids

    Species

    Subspecies

    Assimineids
    Pomatiopsids
    Other Littorinimorpha species

    Architaenioglossa

    Species

    Subspecies

  • Bellamya unicolor abyssinicus
  • Maizania hildebrandti thikensis

    • Hygrophila species

    There are 22 Hygrophila species assessed as endangered.

    Planorbids
    Lymnaeids

    Bivalvia

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

    Unionoida

    There are 54 species and two subspecies in the order Unionoida assessed as endangered.

    Margaritiferids
    Unionids

    Species

    Subspecies

  • Catspaw (Epioblasma obliquata obliquata)
  • Rough rabbitsfoot (Quadrula cylindrica strigillata)
    • Other Unionoida species

    Cephalopods

  • Cirroctopus hochbergi
  • Opisthoteuthis mero

    • Cnidaria

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

    Hydrozoa

  • Millepora striata
  • Millepora tuberosa

    • Anthozoa

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

    Sea pens

  • Crassophyllum thessalonicae

    • Actinaria

  • Paranemonia vouliagmeniensis

    • Arthropods

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

    Arachnids

    There are 72 arachnid species assessed as endangered.

    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

    Species

    Subspecies

    Amphipods

    Species

    Subspecies

  • Niphargus elegans zagrebensis

    • Decapods

    There are 154 decapod species and two decapod subspecies assessed as endangered.

    Parastacids
    Gecarcinucids
    Atyids
    Cambarids

    Species

    Subspecies

  • Withlocoochee light-fleeing cave crayfish (Procambarus lucifugus lucifugus)
    • Potamonautids
    Potamids
    Palaemonids

    Species

    Subspecies

  • Macrobrachium lamarrei lamarroides
    • Other decapod species

    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
    Tetrigids
    Euschmidtiids
    Mogoplistids
    Pamphagids
    Crickets

    Species

    Subspecies

  • Phaloria insularis insularis
    • Acridids
    Tettigoniids
    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
    Lycaenids
    Nymphalids
    Other Lepidoptera species

    Beetles

    There are 72 beetle species assessed as endangered.

    Dytiscids
    Stag beetles
    Geotrupids
    Longhorn beetles
    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
    Platycnemidids

    Species

    Subspecies

    Megapodagrionids
    Gomphids

    Species

    Subspecies

    Calopterygids

    Species

    Subspecies

  • Matrona basilaris japonica
    • Coenagrionids

    Species

    Subspecies

  • Pseudagrion torridum hulae
    • Aeshnids

    Species

    Subspecies

    Libellulids

    Species

    Subspecies

    Other Odonata

    Species

    Subspecies

    References

    List of endangered invertebrates Wikipedia
    (Text) CC BY-SA


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