List of recently extinct invertebrates explained

As of July 2016, the International Union for Conservation of Nature (IUCN) lists 395 extinct species, 206 possibly extinct species, 15 extinct in the wild species, 8 extinct subspecies, and 5 extinct in the wild subspecies of invertebrate.^{[1] [2]}

Flatworms

Extinct species

• Lake Pedder planarian (Romankenkius pedderensis)

Nemertea species

Extinct species

• Geonemertes rodericana

Possibly extinct species

• Prosadenoporus agricola

Annelids

Extinct species

• Japan's earthworm (Amynthas japonicus)^[3]
• Schmarda's earthworm (Tokea orthostichon)^{[4] [5] [6]}
• Lake Pedder earthworm (Hypolimnus pedderensis)^[7]

Molluscs

See main article: List of recently extinct molluscs.

Gastropods

Extinct speciesPossibly extinct speciesExtinct in the wild speciesExtinct subspeciesExtinct in the wild subspecies

Bivalvia

Extinct speciesPossibly extinct speciesExtinct subspecies

Cnidaria

Possibly extinct species

• Millepora boschmai
• Wellington's solitary coral (Rhizopsammia wellingtoni)

Arthropods

See main article: List of recently extinct arthropods.

Centipedes

Possibly extinct species

• Mecistocephalus cyclops
• Mecistocephalus sechellarum

Seed shrimps

Extinct species

• Liocypris grandis
• Namibcypris costata

Arachnids

Extinct speciesPossibly extinct species

Millipedes

Extinct speciesPossibly extinct species

Entognatha

Possibly extinct species

• Ceratophysella sp. nov. 'HC'
• Delamarephorura tami

Maxillopoda

Extinct species

• Afrocyclops pauliani
• Tropodiaptomus ctenopus

Malacostracans

Extinct speciesPossibly extinct speciesExtinct in the wild species

• Socorro isopod (Thermosphaeroma thermophilum)

Insects

See main article: List of recently extinct insects. Extinct speciesPossibly extinct speciesExtinct in the wild species

• Oahu deceptor bush cricket (Leptogryllus deceptor)

See also

• List of least concern invertebrates
• List of near threatened invertebrates
• List of vulnerable invertebrates
• List of endangered invertebrates
• List of critically endangered invertebrates
• List of data deficient invertebrates

Notes and References

1. Web site: IUCN Red List version 2016.1. The IUCN Red List of Threatened Species. International Union for Conservation of Nature and Natural Resources (IUCN). 4 July 2016.
2. Web site: Table 9: Possibly Extinct and Possibly Extinct in the Wild Species (IUCN Red List version 2016-1). The IUCN Red List of Threatened Species. Union for Conservation of Nature and Natural Resources (IUCN). 4 July 2016.
3. Blakemore . Extinction of Japan's first formally described earthworm Amynthas japonicus (Horst, 1883) (Annelida, Oligochaeta, Megadrilacea, Megascolecidae). . Bulletin of Kanagawa Museum . 48 . 55–60 . 2019 . 10 May 2019.
4. Blakemore . On Schmarda's lost earthworm and some newly found New Zealand species (Oligochaeta: Megadrilacea: Lumbricidae, Acanthodrilidae, Octochaetidae, & Megascolecidae s. stricto) . . 1 . 2 . 105–132 . . 2012 . 10.12651/jsr.2012.1.2.105 . free .
5. Blakemore, R.J. . Tokea orthostichon . e.T103192401A103193535 . 2017 . 10.2305/IUCN.UK.2017-2.RLTS.T103192401A103193535.en . 16 October 2022.
6. Blakemore . KPMNH . Redescription of extinct New Zealand earthworm: Tokea orthostichon (Schmarda, 1861) . . 42 . 61–68 . 2019 . 1 March 2019.
7. Blakemore. IUCN . Hypolimnus pedderensis. The IUCN Red List of Threatened Species 2003: e.T41254A10424837 . 2003 . 27 May 2019.