Acanthurus grammoptilus

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Acanthurus grammoptilus
Acanthurus grammoptilus en Dampier.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Acanthuridae
Genus: Acanthurus
Species:
A. grammoptilus
Binomial name
Acanthurus grammoptilus

Acanthurus grammoptilus the finelined surgeonfish, inshore surgeonfish, Northwest surgeonfish or ring-tailed surgeonfis, is a marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the Western Pacific Ocean.

Contents

Taxonomy

Acanthurus grammoptilus was first formally described in 1843 by the Scottish naval surgeon, naturalist and Arctic explorer John Richardson with its type locality given as Port Essington in the Northern Territory of Australia. [2] The genus Acanthurus is one of two genera in the tribe Acanthurini which is one of three tribes in the subfamily Acanthurinae which is one of two subfamilies in the family Acanthuridae. [3]

Description

Acanthurus grammoptilus has its dorsal fin supported by 9 spines and 25 or 26 soft rays while the anal fin is supported by 3 spines and 23 or 24 soft rays. [4] It has a body which varies in depth, the depth fitting into the standard length between 1.9 and 2.5 times with juveniles and subadults having the deepest bodies. The caudal fin is lunate. The overall colour is typically brown to dark brown with a white band on the caudal peduncle. There is yellow streaking to the front and rear of the eye and small yellow spots on the cheeks. The caudal fin has a thin white rear margin. The dorsal fin has a thin blue margin and there are a series of very slender blue lines on the rear parts of both the dorsal and anal fin. The distal half of the pectoral fin is yellow and the spine on the caudal peduncle is dusky. [5] This species has a maximum published fork length of 35.6 cm (14.0 in). [4]

Distribution and habitat

Acanthurus grammoptilus is found in the Western Pacific Ocean from Albrolhos in Western Australia east to Fiji, it has definitely been recorded only from Australia, Fiji and New Caledonia. [1] It is foundin a variety of habitats from silty coastal reefs to outer reef slopes with clear water. [5]

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References

  1. 1 2 Russell, B.; Abesamis, R.; Clements, K.D.; et al. (2012). "Acanthurus grammoptilus". IUCN Red List of Threatened Species . 2012: e.T178006A1518945. doi: 10.2305/IUCN.UK.2012.RLTS.T178006A1518945.en . Retrieved 12 September 2023.
  2. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Acanthurus". Catalog of Fishes . California Academy of Sciences . Retrieved 13 September 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. 1 2 Froese, Rainer; Pauly, Daniel (eds.) (2023). "Acanthurus grammoptilus" in FishBase . JUne 2023 version.
  5. 1 2 Bray, D.J. (2020). "Acanthurus grammoptilus". Fishes of Australia. Museums Victoria. Retrieved 13 September 2023.
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