As of July 2016, the International Union for Conservation of Nature (IUCN) lists 6919 least concern invertebrate species. 38% of all evaluated invertebrate species are listed as least concern. The IUCN also lists 32 invertebrate subspecies as least concern.
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.