Ctenochaetus truncatus

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Ctenochaetus truncatus
CtenochaetusTruncatus, Banda Aceh, Indonesia.jpg
adult Ctenochaetus truncatus
Ctenochaetus truncatus juvenile.jpg
Juvenile Ctenochaetus truncatus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Acanthuridae
Genus: Ctenochaetus
Species:
C. truncatus
Binomial name
Ctenochaetus truncatus

Ctenochaetus truncatus, the Indian gold-ring bristletooth, squaretail bristletooth, yelloweye bristletooth, truncate bristletooth or spotted yellow eye tang, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This fish is found in the Indian Ocean.

Contents

Taxonomy

Ctenochaetus truncatus was first formally described in 2001 by the American ichthyologist John Ernest Randall and the New Zealand biologist Kendall Clements with its type locality given as La Digue in the Seychelles. [2] The genera Ctenochaetus and Acanthurus make up the tribe Acanthurini which is one of three tribes in the subfamily Acanthurinae which is one of two subfamilies in the family Acanthuridae. [3]

Etymology

Ctenochaetus truncatus has the specific name truncatus, a reference to the truncate caudal fin of this fish. [4]

Description

Ctenochaetus truncatus has its dorsal fin supported by 8 spines and between 25 and 27 soft rays while its anal fin is supported by 3 spines and 23 to 25 soft rays. [5] The lips have a margin which is smooth or has small wart-like bumps. The caudal fin is truncate or slightly emarginate. The overall colour of the body is orange-brown with a large number of pale blue to yellow spots on the head, body and base of the dorsal fin. There is a yellow ring around the eye. The caudal, dorsal, anal and pelvic fins have a yellow hue. The juveniles are completely bright yellow. [6] This species has a maximum published standard length of 16 cm (6.3 in). [5]

Habitat and biology

Ctenochaetus truncatus is endemic to the Indian Ocean. It is found along the eastern African coast from Kenya south to KwaZulu-Natal, off southern Oman east across the islands of the Indian Ocean as far as, the Andaman Sea, the Cocos (Keeling) Islands and Christmas Island. [1] This species is found at depths between 1 and 21 m (3 ft 3 in and 68 ft 11 in) over sheltered crests and slopes of reefs, either solitarily or in small aggregations among large corals or in channels. [5]

Utilisation

Ctenochaetus truncatus is a minor part of the aquarium trade. It is targeted as a food fish by fisheries in Thailand but is taken a bycatch elsewhere. [1]

Related Research Articles

<i>Zebrasoma</i> Genus of fishes

Zebrasoma is a genus of marine ray-finned fishes belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. These fishes are found in the Indo-Pacific region.

<i>Zebrasoma desjardinii</i> Species of fish

Zebrasoma desjardinii, the Red Sea sailfin tang, Desjardin's sailfin tang, Indian sailfin tang or Indian sailfin surgeonfish, is a marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This fish is found in the Indian Ocean.

<i>Naso vlamingii</i> Species of fish

Naso vlamingii, the bignose unicornfish, scibbled unicornfish, Vlaming's unicornfish, and zebra unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific.

<i>Naso brevirostris</i> Species of fish

Naso brevirostris, also known as the short-nosed unicornfish, spotted unicornfish, brown unicornfish, lined unicornfish, longnose surgeonfish, palefin unicornfish, paletail unicornfish, shorthorned unicornfish or shortsnouted unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. It occurs in the Indian and western Pacific Oceans.

<i>Naso brachycentron</i> Species of fish

Naso brachycentron, the humpback unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indian and western Pacific Oceans.

<i>Ctenochaetus</i> Genus of fishes

Ctenochaetus, or bristletooth tangs, is a genus of marine ray-finned fish belonging to the family Acanthuridae, which includes the surgeonfishes, unicornfishes and tangs. These fishes are found in the Indo-Pacific region. They have many, small flexible teeth and some species have the common name bristletooth.

<i>Ctenochaetus strigosus</i> Species of fish

Ctenochaetus strigosus, the kole tang, spotted bristletooth, spotted surgeonfish, goldring bristletooth, goldring surgeonfish, yelloweye tang or yellow-eyed surgeonfish, is a species of marine ray-finned fish belonging to family Acanthuridae which includes the surgeonfishes, unicoornfishes and tangs. This fish is endemic to Hawaii.

<i>Ctenochaetus binotatus</i> Species of fish

Ctenochaetus binotatus, the twospot bristletooth' or twospot surgeonfish, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This species has a wide Indo-Pacific distribution.

<i>Ctenochaetus striatus</i> Species of fish

Ctenochaetus striatus, the striated surgeonfish, lined bristletooth, fine-lined bristletooth or striped bristletooth, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicoornfishes and tangs This species has a wide Indo-Pacific distribution.

<i>Ctenochaetus tominiensis</i> Species of fish

Ctenochaetus tominiensis, the Tomini surgeonfish, Tomini bristletooth, yellowtip bristletooth or orangetip bristletooth, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This fish is found in the western central Pacific Ocean.

<i>Ctenochaetus cyanocheilus</i> Species of fish

Ctenochaetus cyanocheilus,, the bluelip bristletooth, yelloweye bristletooth, goldring bristletooth, Indo-Pacific yellow tang or short-tail bristle-tooth, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. This species is found in the Western Pacific Ocean.

Ctenochaetus flavicauda, the whitetail bristletooth or redspotted tang, is a species of marine ray-finned fish belonging to the family Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. It is found in the western central Pacific Ocean.

<i>Ctenochaetus marginatus</i> Species of fish

Ctenochaetus marginatus, the blue-spotted bristletooth, blue-spotted surgeonfish or striped-fin surgeonfish, is a species of marine ray-finned fish belonging to the biology Acanthuridae which includes the surgeonfishes, unicornfishes and tangs. The blue-spotted bristletooth is found in the central and eastern Pacific Ocean.

<i>Naso elegans</i> Species of fish

Naso elegans, the elegant unicornfish, the blonde naso tang, Indian orange-spine unicorn, lipstick surgeonfish, lipstick tang, orangespine unicornfish or smoothheaded unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indian and western Pacific Oceans.

<i>Naso fageni</i> Species of fish

Naso fageni, the horseface unicornfish or blunt unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Indo-Pacific region.

<span class="mw-page-title-main">Sqaurenose unicornfish</span> Species of fish

The squarenose unicornfish is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific region.

<i>Naso minor</i> Species of fish

Naso minor, the blackspine unicornfish, slender unicornfish, lesser unicornfish or pony unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific region.

<i>Naso thynnoides</i> Species of fish

Naso thynnoides, the oneknife unicornfish, oneknife unicorn, thunny unicornfish, singlespine unicornfish, one-spine unicorn, or barred unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific.

<i>Naso tonganus</i> Species of surgeonfish

Naso tonganus, the bulbnose unicornfish, hump-nosed unicornfish, humphead unicornfish, or the humpnose unicorn, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species is found in the Indo-Pacific. It is of value in commercial fisheries.

<i>Naso tuberosus</i> Species of fish

Naso tuberosus, the humpnose unicornfish, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This species occurs in the Indian Ocean but it may be more widespread.

References

  1. 1 2 3 Abesamis, R.; Clements, K.D.; Choat, J.H.; et al. (2012). "Ctenochaetus truncatus". IUCN Red List of Threatened Species . 2012: e.T177992A1514533. doi: 10.2305/IUCN.UK.2012.RLTS.T177992A1514533.en . Retrieved 8 January 2022.
  2. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Ctenochaetus". Catalog of Fishes . California Academy of Sciences . Retrieved 10 October 2023.
  3. ↑ J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016). Fishes of the World (5th ed.). Wiley. pp. 497–502. ISBN   978-1-118-34233-6.
  4. ↑ Christopher Scharpf & Kenneth J. Lazara, eds. (12 January 2021). "Order ACANTHURIFORMES (part 2): Families EPHIPPIDAE, LEIOGNATHIDAE, SCATOPHAGIDAE, ANTIGONIIDAE, SIGANIDAE, CAPROIDAE, LUVARIDAE, ZANCLIDAE and ACANTHURIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 10 October 2023.
  5. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2023). "Ctenochaetus truncatus" in FishBase . June 2023 version.
  6. ↑ John E. Randall (2022). "Family Acanthuridae". In Phillip C Heemstra; Elaine Heemstra; David A Ebert; Wouter Holleman; John E Randall (eds.). Coastal Fishes of the Western Indian Ocean (PDF). Vol. 5. South African Institute for Aquatic Biodiversity. pp. 219–244. ISBN   978-1-990951-32-9. Archived (PDF) from the original on 2023-06-12. Retrieved 2023-07-17.
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