List of least concern invertebrates

16 extinct in the wild invertebrate species (0.09%)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[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)]
  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

As of July 2016, the International Union for Conservation of Nature (IUCN) lists 6919 least concern invertebrate species.[1] 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.

Nemertea species[edit]

Molluscs[edit]

Main article: List of least concern molluscs

There are 2437 mollusc species and five mollusc subspecies assessed as least concern.

Cnidaria[edit]

There are 301 species in the phylum Cnidaria assessed as least concern.

Hydrozoa[edit]

Anthozoa[edit]

There are 293 species in the class Anthozoa assessed as least concern.

Actinaria[edit]

Alcyonacea[edit]

Scleractinia[edit]

There are 290 species in the order Scleractinia assessed as least concern.

Dendrophylliids[edit]
Acroporids[edit]
Oculinids[edit]
Meandrinids[edit]
Poritids[edit]
Brain corals[edit]
Pocilloporids[edit]
Mussids[edit]
Pectiniids[edit]
Siderastreids[edit]
Agariciids[edit]
Merulinids[edit]
Caryophylliids[edit]
Fungiids[edit]
Astrocoeniids[edit]
Rhizangiids[edit]

Arthropods[edit]

There are 4069 arthropod species and 27 arthropod subspecies assessed as least concern.

Main articles: List of least concern arthropods and List of least concern insects

Echinoderms[edit]

There are 111 echinoderm species assessed as least concern.

Sea cucumbers[edit]

See also[edit]

References[edit]

  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.


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