Hawaiian blackhead triplefin

The Hawaiian blackhead triplefin (Enneapterygius atriceps), also known as the Hawaiian triplefin in Hawaii,[2] is a species of triplefin blenny in the genus Enneapterygius.[2] It is a tropical blenny found in coral reefs in the Pacific Ocean, from the Hawaiian Islands, French Frigate Shoals, Laysan Island, and Midway Atoll.[2] Blennies in this species swim at a depth range of 1–23 metres, and inhabit dead coral and rock.

Hawaiian blackhead triplefin
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Blenniiformes
Family: Tripterygiidae
Genus: Enneapterygius
Species:
E. atriceps
Binomial name
Enneapterygius atriceps
(Jenkins, 1903)
Synonyms[2]
  • Tripterygium atriceps Jenkins, 1903

It was originally described by O.P. Jenkins in 1903,[3] as a species of Tripterygion, but was reassigned to Enneapterygius by R. Fricke in 1997.[4]

Description

The Hawaiian blackhead triplefin is considered part of the Enneapterygius hemimelas species group. It is considered a small or medium member of the group,[4] with males reaching a maximum length of 2.6 centimetres.[2] Males can be distinguished from females by their dark head colouring.[4]

References
  1. Williams, J. (2014). "Enneapterygius atriceps". IUCN Red List of Threatened Species. 2014: e.T178920A1547937. doi:10.2305/IUCN.UK.2014-3.RLTS.T178920A1547937.en. Retrieved 19 November 2021.
  2. Froese, Rainer; Pauly, Daniel (eds.) (2019). "Enneapterygius atriceps" in FishBase. April 2019 version.
  3. Jenkins, O. P. (1903). "Report on collections of fishes made in the Hawaiian Islands, with descriptions of new species". Bulletin of the U. S. Fish Commission. 22: 415–511.
  4. Fricke, R. (1997). "Tripterygiid fishes of the western and central Pacific, with descriptions of 15 new species, including an annotated checklist of world Tripterygiidae (Teleostei)". Theses Zoologica. 29: 1–607.
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