List of endangered invertebrates

As of July 2016, the International Union for Conservation of Nature (IUCN) lists 1163 endangered invertebrate species.[1] 6.4% of all evaluated invertebrate species are listed as endangered. The IUCN also lists 36 invertebrate subspecies as endangered.

987 critically endangered invertebrate species (5.6%)1163 endangered invertebrate species (6.6%)2178 vulnerable invertebrate species (12%)1105 near threatened invertebrate species (6.3%)6919 least concern invertebrate species (39%)5278 data deficient invertebrate species (30%)
Invertebrate species (IUCN, 2020.1)
  • 17,646 extant species have been evaluated
  • 12,368 of those are fully assessed[lower-alpha 1]
  • 8024 are not threatened at present[lower-alpha 2]
  • 4328 to 9606 are threatened[lower-alpha 3]
  • 410 to 616 are extinct or extinct in the wild:
    • 395 extinct (EX) species[lower-alpha 4]
    • 15 extinct in the wild (EW)
    • 206 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
Endangered (EN) species are considered to be facing a very high risk of extinction in the wild.

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.[2] 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."[3]

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
  • Pachnodus becketti
  • Pachnodus fregatensis
  • Pachnodus kantilali
  • Pachnodus niger
  • Pachnodus ornatus
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

  • Bithynia pesicii
  • Bithynia prespensis
  • Bithynia skadarskii
  • Bithynia zeta
  • Funduella incisa
  • Gabbiella barthi
  • Gabbiella spiralis
  • Gabbiella tchadiensis
  • Gabbiella verdcourti
  • Liminitesta sulcata
  • Pseudobithynia levantica
  • Pseudobithynia trichonis

Subspecies

  • Gabbiella humerosa alberti
  • Gabbiella humerosa edwardi
  • Gabbiella humerosa kyogae
Assimineids
Pomatiopsids
Other Littorinimorpha species

Sorbeoconcha

Architaenioglossa

Species

Subspecies

  • Bellamya unicolor abyssinicus
  • Maizania hildebrandti thikensis

Cycloneritimorpha
  • Helicina rostrata
  • Black nerite (Theodoxus prevostianus)
  • Metkovich cave nerite (Theodoxus subterrelictus)
  • Striped nerite (Theodoxus transversalis)

Hygrophila species

There are 22 Hygrophila species assessed as endangered.

Planorbids
Lymnaeids
  • Lymnaea maroccana
  • Radix pinteri
  • Radix skutaris
  • Shortspire pondsnail (Stagnicola idahoensis)
  • Stagnicola kayseris

Neogastropoda

Other gastropod species

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
  • Spectacle case pearly mussel (Cumberlandia monodonta)
  • Margaritifera homsensis
  • Margaritifera laosensis
  • Freshwater pearl mussel (Margaritifera margaritifera)
  • Alabama pearl shell (Margaritifera marrianae)
Unionids

Species

Subspecies

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

Venerida
  • Corbicula possoensis
  • Pisidium edlaueri
  • Pisidium maasseni

Cephalopods

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

Scleractinia

Arthropods

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

Centipedes
  • Australobius abbreviatus
  • Australobius inflatitarsis
  • Australobius sechellarum
  • Mecistocephalus megalodon
  • Seychelles long-legged centipede (Seychellonema gerlachi)

Arachnids

There are 72 arachnid species assessed as endangered.

Harvestmen
  • Biantes albimanus
  • Biantes minimus
  • Gnomulus bedoharvengorum
  • Ibalonius bimaculatus
  • Ibalonius inscriptus
  • Ibalonius karschii
  • Mitraceras pulchra
  • Samoa sechellana

Spiders
  • Kauaʻi cave wolf spider (Adelocosa anops)
  • Anapistula seychellensis
  • Argyrodes chionus
  • Bardala labarda
  • Baviola luteosignata
  • Cenemus mikehilli
  • Cenemus silhouette
  • Clubiona mahensis
  • Clubiona nigrimaculosa
  • Cynapes wrighti
  • Dipoena hasra
  • Dipoena pristea
  • Euryopis helcra
  • Firmicus insularis
  • Gamasomorpha mornensis
  • Parambikulam large burrowing spider (Haploclastus kayi)
  • Hispo alboclypea
  • Hispo striolata
  • Ischnothyreus serpentinum
  • Larinia dasia
  • Lionneta mahensis
  • Lionneta orophila
  • Lionneta praslinensis
  • Lionneta savyi
  • Lionneta sechellensis
  • Lionneta silhouettei
  • Lionneta veli
  • Mariblemma pandani
  • Microbianor golovatchi
  • Nanume naneum
  • Orchestina justini
  • Orchestina sechellorum
  • Patri david
  • Phycosoma menustya
  • Beautiful parachute spider (Poecilotheria formosa)
  • Bengal ornamental (Poecilotheria miranda)
  • Reddish parachute spider (Poecilotheria rufilata)
  • Prasonica anarillea
  • Prasonicella marsa
  • Prida sechellensis
  • Pseudicius seychellensis
  • Rhomphaea recurvata
  • Sadies gibbosa
  • Sadies trifasciata
  • Salpesia soricina
  • Sason sechellanum
  • Scytodes pholcoides
  • Seycellesa braueri
  • Seychellia wiljoi
  • Stenoonops opisthornatus
  • Tetrablemma benoiti
  • Theridion cloxum
  • Theridion mehlum
  • Theridion nagorum
  • Theridion palanum
  • Tylorida mornensis

Other arachnid species

Branchiopoda

Millipedes
  • Badplaas black millipede (Doratogonus furculifer)
  • Strong black millipede (Doratogonus infragilis)
  • Minor black millipede (Doratogonus minor)
  • Ruby-legged black millipede (Doratogonus rubipodus)
  • Northern black millipede (Doratogonus septentrionalis)
  • Zululand black millipede (Doratogonus zuluensis)
  • Eucarlia hoffmani
  • Eucarlia urophora
  • Gonatotrichus silhouettensis
  • Pterozonium tropiphorum
  • Rhinotus densepilosus
  • Rhinotus vanmoli
  • Seychelles giant millipede (Sechelleptus seychellarum)
  • Seychelles pill-millipede (Sechelliosoma forcipatum)
  • Spiromanes braueri
  • Spiromanes sechellarum

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

  • Asellus aquaticus carniolicus
  • Asellus aquaticus cyclobranchialis
  • Monolistra racovitzai conopyge

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

Potamonautids
Potamids
  • Doimon doichiangdao
  • Doimon doisutep
  • Geothelphusa levicervix
  • Yangmingshan crab (Geothelphusa yangminshan)
  • Hainanpotamon orientale
  • Ibanum pilimanus
  • Indochinamon bhumibol
  • Indochinamon villosum
  • Iomon nan
  • Johora punicea
  • Stoliczia chaseni
Palaemonids

Species

  • Arachnochium kulsiense
  • Calathaemon holthuisi
  • Macrobrachium hirtimanus
  • Macrobrachium minutum
  • Macrobrachium naso
  • Macrobrachium poeti
  • Balcones cave shrimp (Palaemonetes antrorum)
  • Palaemonetes suttkusi

Subspecies

  • Macrobrachium lamarrei lamarroides
Other decapod species

Insects

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

Blattodea
  • Hololeptoblatta minor
  • Miriamrothschildia aldabrensis
  • Miriamrothschildia biplagiata
  • Miriamrothschildia mahensis
  • Gerlach's cockroach (Nocticola gerlachi)
  • Theganopteryx lunulata
  • Theganopteryx minuta

Orthoptera

There are 91 species and two subspecies in the order Orthoptera assessed as endangered.

Lentulids
  • Slender restio grasshopper (Betiscoides meridionalis)
  • Small restio grasshopper (Betiscoides parva)
  • Robust restio grasshopper (Betiscoides sjostedti)
Tetrigids
Euschmidtiids
  • Jagos monkey grasshopper (Chromomastax jagoi)
  • Ufipa monkey grasshopper (Euschmidtia fitzgeraldi)
  • Tanga monkey grasshopper (Euschmidtia tangana)
Mogoplistids
  • Arachnocephalus subsulcatus
  • Ectatoderus aldabrae
  • Ectatoderus nigriceps
  • Ectatoderus squamiger
  • Ornebius stenus
  • Ornebius syrticus
Pamphagids
  • Parnassos stone grasshopper (Glyphanus obtusus)
  • Groovy stone grasshopper (Kurtharzia sulcata)
  • Slender stone grasshopper (Orchamus gracilis)
  • Karpathos stone grasshopper (Orchamus kaltenbachi)
  • Chopard's stone grasshopper (Paranocarodes chopardi)
  • Eastern stone grasshopper (Prionotropis hystrix)
  • Willemse's stone grasshopper (Prionotropis willemsorum)
  • Purpurarian stone grasshopper (Purpuraria erna)
  • Lanzarote stick grasshopper (Purpuraria magna)
Crickets

Species

  • Seychelles palm cricket (Metioche bolivari)
  • Laricis tree cricket (Oecanthus laricis)
  • Orthoxiphus nigrifrons
  • Phaeogryllus fuscus
  • Scottiola salticiformis
  • Seychelles short-winged cricket (Seychellesia longicercata)
  • Seychellesia patellifera
  • Zarceus major

Subspecies

  • Phaloria insularis insularis
Acridids
  • Uluguru slender grasshopper (Acanthoxia aculeus)
  • Tanzanian coast grasshopper (Acteana alazonica)
  • Uluguru forest edge grasshopper (Afrophlaeoba euthynota)
  • Rubeho forest edge grasshopper (Afrophlaeoba longicornis)
  • Nguru forest edge grasshopper (Afrophlaeoba nguru)
  • Uluguru dusky grasshopper (Aresceutica morogorica)
  • Usambara dusky grasshopper (Aresceutica subnuda)
  • Ferdinand's grasshopper (Chorthippus ferdinandi)
  • Karaman grasshopper (Chorthippus relicticus)
  • Sicilian cross-backed grasshopper (Dociostaurus minutus)
  • Seychelles palm grasshopper (Enoplotettix gardineri)
  • Usambara noble grasshopper (Eupropacris pompalis)
  • Uvinza grasshopper (Hadrolecocatantops uvinza)
  • Lila Downs' friar grasshopper (Liladownsia fraile)
  • Sardinian match grasshopper (Ochrilidia nuragica)
  • Chelmos mountain grasshopper (Oropodisma chelmosi)
  • Karavica mountain grasshopper (Oropodisma karavica)
  • Parnassos mountain grasshopper (Oropodisma parnassica)
  • Tymphrestos mountain grasshopper (Oropodisma tymphrestosi)
  • Tymphi mountain grasshopper (Peripodisma tymphii)
  • Pternoscirtus aldabrae
  • Dinarian grasshopper (Rammeihippus dinaricus)
  • Gran Canaria sand grasshopper (Sphingonotus guanchus)
  • Knotty sand grasshopper (Sphingonotus nodulosus)
  • Club toothed grasshopper (Stenobothrus clavatus)
  • Zayante band-winged grasshopper (Trimerotropis infantilis)
  • Santa Monica Mountains grasshopper (Trimerotropis occidentaloides)
  • Lompoc grasshopper (Trimerotropis occulens)
Tettigoniids
  • Brown false shieldback (Aroegas fuscus)
  • Big-bellied glandular bush-cricket (Bradyporus macrogaster)
  • Cyprian red-headed bush-cricket (Bucephaloptera cypria)
  • Gran Canaria green bush-cricket (Calliphona alluaudi)
  • Gomera green bush-cricket (Calliphona gomerensis)
  • Palma green bush-cricket (Calliphona palmensis)
  • Lesotho meadow katydid (Conocephalus basutoanus)
  • Striped restio katydid (Conocephalus vaginalis)
  • Mount Ida marbled bush-cricket (Eupholidoptera astyla)
  • Spiny marbled bush-cricket (Eupholidoptera spinigera)
  • Kawanaphila pachomai
  • Chelmos Greek bush-cricket (Parnassiana chelmos)
  • Tymphi Greek bush-cricket (Parnassiana tymphiensis)
  • Tymphrestos Greek bush-cricket (Parnassiana tymphrestos)
  • Rentz's ambush katydid (Peringueyella rentzi)
  • Lucas' dark bush-cricket (Pholidoptera lucasi)
  • Psacadonotus insulanus
  • Lesina bush-cricket (Rhacocleis buchichii)
  • Seychelles predatory bush-cricket (Seselphisis visenda)
  • Jambila seedpod shieldback (Thoracistus jambila)
  • Seedpod shieldback (Thoracistus semeniphagus)
  • Inflated seedpod shieldback (Thoracistus thyraeus)
  • Throscodectes xederoides
  • Throscodectes xiphos
  • Adriatic marmored bush-cricket (Zeuneriana marmorata)
Phaneropterids

Species

  • Tree winter katydid (Brinckiella arboricola)
  • Cyprian plump bush-cricket (Isophya mavromoustakisi)
  • Epiros bright bush-cricket (Poecilimon gracilioides)
  • Paros bright bush-cricket (Poecilimon paros)
  • Pindos bright bush-cricket (Poecilimon pindos)
  • Soulion bright bush-cricket (Poecilimon soulion)

Subspecies

  • Isophya longicaudata longicaudata

Hymenoptera

Lepidoptera

Lepidoptera comprises moths and butterflies. There are 51 species in the order Lepidoptera assessed as endangered.

Swallowtail butterflies
Lycaenids
Nymphalids
  • Comoro friar (Amauris comorana)
  • Atlas grayling (Arethusana aksouali)
  • Biak dark crow (Euploea albicosta)
  • Murphy's crow (Euploea caespes)
  • Seychelles crow (Euploea mitra)
  • Biak threespot crow (Euploea tripunctata)
  • Karpathos grayling (Hipparchia christenseni)
  • Ponza grayling (Hipparchia sbordonii)
  • Hewitson's small tree-nymph (Ideopsis hewitsonii)
  • Moroccan wall brown (Lasiommata meadewaldoi)
  • Halicarnas brown (Maniola halicarnassus)
  • Kuekenthal's yellow tiger (Parantica kuekenthali)
  • Biak tiger (Parantica marcia)
  • Milagros' tiger (Parantica milagros)
  • Father Schoenig's chocolate (Parantica schoenigi)
  • Bonthain tiger (Parantica sulewattan)
  • Timor yellow tiger (Parantica timorica)
  • Madeiran speckled wood (Pararge xiphia)
  • Pseudochazara amymone
  • Pseudochazara euxina
  • Schneider's surprise (Tiradelphe schneideri)
Other Lepidoptera species

Beetles

There are 72 beetle species assessed as endangered.

Dytiscids
Stag beetles
Geotrupids
  • Ceratophyus martinezi
  • Ceratophyus rossii
  • Thorectes balearicus
  • Thorectes baraudi
  • Thorectes castillanus
  • Thorectes catalonicus
  • Thorectes chersinus
  • Thorectes coiffaiti
  • Thorectes distinctus
  • Thorectes hernandezi
  • Thorectes hispanus
  • Thorectes orocantabricus
  • Thorectes punctatissimus
  • Thorectes punctatolineatus
  • Thorectes puncticollis
  • Thorectes sardous
  • Thorectes variolipennis
  • Typhaeus hiostius
  • Typhaeus momus
Longhorn beetles
  • Anaglyptus luteofasciatus
  • Anaglyptus praecellens
  • Crotchiella brachyptera
  • Isotomus jarmilae
  • Pseudosphegesthes bergeri
  • Ropalopus ungaricus
  • Stenopterus creticus
  • Trichoferus bergeri
  • Pitt Island longhorn beetle (Xylotoles costatus)
Scarabaeids
  • Ahermodontus ambrosi
  • Ateuchus ambiguus
  • Canthonella gomezi
  • Yanbaru long-armed scarab beetle (Cheirotonus jambar)
  • Cryptocanthon altus
  • Cryptocanthon nebulinus
  • Cryptocanthon punctatus
  • Dichotomius eucranioides
  • Dichotomius schiffleri
  • Endroedyolus paradoxus
  • Heptaulacus gadetinus
  • Shadowy chafer (Mellissius adumbratus)
  • Nimbus anyerae
  • Onoreidium howdeni
  • Proagoderus uluguru
  • Sarophorus punctatus
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

  • Coeliccia flavicauda masakii
  • Coeliccia ryukyuensis amamii
  • Coeliccia ryukyuensis ryukyuensis
Megapodagrionids
Gomphids

Species

Subspecies

  • Asiagomphus amamiensis amamiensis
  • Asiagomphus amamiensis okinawanus
  • Stylogomphus ryukyuanus asatol
  • Stylogomphus ryukyuanus watanabei
Calopterygids

Species

  • Caliphaea angka
  • Glittering demoiselle (Calopteryx exul)
  • Clear-winged demoiselle (Calopteryx hyalina)
  • Syrian demoiselle (Calopteryx syriaca)
  • Clearwing (Sapho puella)
  • Cameroon sparklewing (Umma mesumbei)

Subspecies

  • Matrona basilaris japonica
Coenagrionids

Species

  • Acanthagrion williamsoni
  • Aciagrion fasciculare
  • Coenagriocnemis rufipes
  • Drepanoneura donnellyi
  • Mesamphiagrion demarmelsi
  • Mesamphiagrion gaudiimontanum
  • Mesamphiagrion nataliae
  • Mesamphiagrion santainense
  • Blue-and-orange threadtail (Microneura caligata)
  • Pseudagrion arabicum
  • Badplaas sprite (Pseudagrion inopinatum)
  • Telebasis flammeola

Subspecies

  • Pseudagrion torridum hulae
Aeshnids

Species

Subspecies

  • Planaeschna ishigakiana ishigakiana
  • Planaeschna ishigakiana nagaminei
  • Planaeschna risi sakishimana
Libellulids

Species

Subspecies

  • Leucorrhinia intermedia ijimai
  • Orthetrum poecilops miyajimaense
  • Urothemis thomasi thomasi
Other Odonata

Species

Subspecies

  • Chlorogomphus brunneus brunneus
  • Buchholz' cordulegaster (Cordulegaster helladica buchholzi)
  • Cordulegaster helladica helladica
  • Hemicordulia mindana nipponica

Other insect species
  • Mccarthy's plant-louse (Acizzia mccarthyi)
  • Anisolabis scotti
  • Giant torrent midge (Edwardsina gigantea)
  • Seychelles winged stick insect (Graffaea seychellensis)
  • Sugarfoot moth fly (Nemapalpus nearcticus)
  • Canary dwarf mantis (Pseudoyersinia canariensis)
  • Large blue Lake mayfly (Tasmanophlebi lacuscoerulei)

Echinoderms

Other invertebrate species

{{columns-list|colwidth=30em|*Antiponemertes allisonae

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gollark: You're not actually in Turkey, perhaps?
gollark: So helpful.
gollark: ++search lazer

See also

References
  1. "IUCN Red List version 2016.1". The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 4 July 2016.
  2. "Limitations of the Data". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
  3. "2001 Categories & Criteria (version 3.1)". The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). Retrieved 11 January 2016.
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