Prionurus laticlavius

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Prionurus laticlavius
Prionurus laticlavius - Chancho Surgeonfish.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Acanthuridae
Genus: Prionurus
Species:
P. laticlavius
Binomial name
Prionurus laticlavius
(Valenciennes, 1846)
Synonyms [2]
  • Naseus laticlavius Valenciennes, 1846
  • Xesurus laticlavius (Valenciennes, 1846)
  • Xesurus clarionis Gilbert & Starks, 1897
  • Prionurus clarionis (Gilbert & Starks, 1897)
  • Xesurus hopkinsi Gilbert & Starks, 1904
  • Prionurus hopkinsi (Gilbert & Starks, 1904)

Prionurus laticlavius the razor surgeonfish or razor sawtail, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes and tangs. This fish is found in the eastern central Pacific Ocean.

Contents

Taxonomy

Prionurus laticlavius was first formally described as Naseus laticlavius in 1846 by the French zoologist Achille Valenciennes with its biology given as Galápagos Islands. [3] The genus Prionurus is the only genus in the tribe Prionurini which is one of three tribes in the subfamily Acanthurinae which is one of two subfamiles in the family Acanthuridae. [4] The razor surgeonfish and the yellowtail surgeonfish ( P. punctatus ) are closely related and more work is needed to determine the relationship of these two taxa. [1]

Etymology

Prionurus laticlavius has the specific name, laticlavius which combines latus, meaning "wide" , with clavius, which means "bar", this is thought to be a reference to the brown or blackish stripe on the otherwise yellow body of the juveniles. [5]

Description

Prionurus laticlavius has an oval compressed body with a steep dorsal profile on the head with the eye positioned high on the head. The teeth are moderately large, set closely, flattened with strongly serrated edges. The dorsal fin is supported by 7 or 8 spines and 27 or 29 soft rays while the anal fin contains 3 spines and 23 soft rays. There are 3 bony plates along each side of the caudal peduncle. The scales are small and ctenoid. The overall colour is grey contrasting with the yellow caudal fin with a dark vertical bar through the eye and another at the back of the head. The juveniles are largely yellow in colour. [6] The razor surgeonfish has a maximum published total length of 60 cm (24 in) although 25 cm (9.8 in) is more typical. [2]

Distribution and habitat

Prionurus laticlavius is found in the eastern central Pacific Ocean along the western coasts of Central and South America between Costa Rica in the north and Colombia in the south, as well as around Cocos Island, Malpelo Island and the Galápagos Islands. It has been recorded as far north as the southern Gulf of California and the Revillagigedo Islands but there is uncertainty about the taxonomic identity represented by these records. [1] It occurs on reefs in shallow water where it lives insmall groups and feeds on algae. [2]

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References

  1. 1 2 3 Abesamis, R.; Choat, J.H.; Clements, K.D.; et al. (2012). "Prionurus laticlavius". IUCN Red List of Threatened Species . 2012: e.T183310A17253060. doi: 10.2305/IUCN.UK.2012.RLTS.T183310A17253060.en . Retrieved 10 August 2023.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2023). "Prionurus laticlavus" in FishBase. June 2023 version.
  3. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Prionurus". Catalog of Fishes . California Academy of Sciences . Retrieved 10 August 2023.
  4. ↑ 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.
  5. ↑ 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 August 2023.
  6. ↑ "Species: Prionurus laticlavius, Razor sawtail". Shorefishes of the Eastern Pacific online information system. Smithsonian Tropical Research Institute . Retrieved 10 August 2023.
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