Invertebrate species (IUCN, 2020.1)
17,646 extant species have been evaluated
12,368 of those are fully assessed[ a]
8024 are not threatened at present[ b]
4328 to 9606 are threatened[ c]
410 to 616 are extinct or extinct in the wild:
395 extinct (EX) species[ d]
15 extinct in the wild (EW)
206 possibly extinct [CR(PE)]
0 possibly extinct in the wild [CR(PEW)]
^ excludes data deficient evaluations.
^ NT, LR/cd, LC.
^ Threatened comprises CR, EN and VU. Upper estimate additionally includes DD.
^ Chart omits extinct (EX) species
As of July 2016, the International Union for Conservation of Nature (IUCN) lists 6919 least concern invertebrate species.[ 1]
No subpopulations of invertebrates have been evaluated by the IUCN.
This is a complete list of least concern invertebrate species and subspecies as evaluated by the IUCN.
There are 2437 mollusc species and five mollusc subspecies assessed as least concern.
There are 301 species in the phylum Cnidaria assessed as least concern.
There are 293 species in the class Anthozoa assessed as least concern.
There are 290 species in the order Scleractinia assessed as least concern.
There are 4069 arthropod species and 27 arthropod subspecies assessed as least concern.
There are 111 echinoderm species assessed as least concern.
See also
References
^ "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 .
