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Chaetodon trichrous (Tahiti butterflyfish) is a species of fish in the family Chaetodontidae.[2][1][3]

Illustration of Chaetodon trichrous
Illustration of Chaetodon trichrous

Chaetodon trichrous
Chaetodon trichrous from Tuamotu Archipelago
Conservation status

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Chaetodontidae
Genus: Chaetodon
Subgenus: Lepidochaetodon
Species:
C. trichrous
Binomial name
Chaetodon trichrous
Günther, 1874

Taxonomy


This species is included in the subgenus Lepidochaetodon. In 1984, André and Roland Bauchot Maugé proposed to include this species in a new genus Mesochaetodon.[4]


Description


Chaetodon trichrous can reach a length of about 12 centimetres (4.7 in).[2] The back half of the body is dark brown to black, while the front part is grayish, with a small vertical black stripe through the eye. The tail is yellow.


Biology


These fishes feed over hard substrate and on plankton.[5] They usually live singly, in pairs or in small groups.[2][1]


Distribution


This species is endemic to French Polynesia (Marquesas Islands, Society Islands, Tahiti, Tuamotu Archipelago) in the central-south Pacific Ocean.[2][1]


Habitat


Chaetodon trichrous prefers shallow coastal habitats, lagoon reefs and rocky reefs, at depths between 3 and 25 meters.[2][1]


References


  1. Pyle, R.; Myers, R.F.; Rocha, L.A.; Craig, M.T.; Pratchett, M. (2010). "Chaetodon trichrous". IUCN Red List of Threatened Species. 2010: e.T165679A6089235. doi:10.2305/IUCN.UK.2010-4.RLTS.T165679A6089235.en. Retrieved 20 November 2021.
  2. Froese, Rainer; Pauly, Daniel (eds.) (2019). trichrous"Chaetodon trichrous" in FishBase. December 2019 version.
  3. Burgess, W.E., 1978. Butterflyfishes of the world. A monograph of the Family Chaetodontidae. T.F.H. Publications, Neptune City, New Jersey.
  4. André Maugé and Roland Bauchot Les genres et sous-genres de Chaetodontidés étudiés par une méthode d'analyse numérique
  5. Robert Reavis and Joshua M Copus Monogamy in a feeding generalist, Chaetodon trichrous, the endemic Tahitian Butterflyfish


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