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.
Nemertea Extinct species
Geonemertes rodericana Possibly extinct species
Prosadenoporus agricola
Annelids Extinct species
Japan's earthworm (Amynthas japonicus) Schmarda's earthworm (Tokea orthostichon) Lake Pedder earthworm (Hypolimnus pedderensis)
Molluscs
Gastropods Extinct species
Possibly extinct species
Extinct in the wild species
Extinct subspecies
Extinct in the wild subspecies
Bivalvia Extinct species
Possibly extinct species
Extinct subspecies
Cnidaria Possibly extinct species
Millepora boschmai Wellington's solitary coral (Rhizopsammia wellingtoni)
Arthropods
Centipedes Possibly extinct species
Mecistocephalus cyclops Mecistocephalus sechellarum
Seed shrimps Extinct species
Liocypris grandis
Arachnids Extinct species
Possibly extinct species
Millipedes Extinct species
Possibly extinct species
Entognatha Possibly extinct species
Ceratophysella sp. nov. 'HC' Delamarephorura tami
Maxillopoda Extinct species
Afrocyclops pauliani Tropodiaptomus ctenopus
Malacostracans Includes crabs, lobsters, crayfish, shrimp, krill, woodlice, and many others. Extinct species
Possibly extinct species
Extinct in the wild species
Socorro isopod (Thermosphaeroma thermophilum)
Insects
Extinct species
Possibly extinct species
Extinct 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
References

