Pearly razorfish

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Pearly razorfish
Labridae - Xyrichtys novacula.JPG
Xyrichtys novacula, a Mediterranean Sea specimen at the Civic Aquarium of Milan
Xyrichtys novacula.jpg
Xyrichtys novacula in the Atlantic Ocean, Southeast U.S.
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Labriformes
Family: Labridae
Genus: Xyrichtys
Species:
X. novacula
Binomial name
Xyrichtys novacula
(Linnaeus, 1758)
Synonyms

See text

The pearly razorfish (Xyrichtys novacula), commonly known as cleaver wrasse, is a species of wrasse. It is of minor importance to local commercial fisheries and is popular as a game fish. It can also be found in the aquarium trade. [2]

Contents

Description

Xyrichtys novacula can reach 38 cm (15 in) in total length, though most do not exceed 20 cm (7.9 in). Its body is elongate and very compressed laterally, the head is flattened, with a steep profile and sharp teeth. Its long dorsal fin extends along most of its back. It has 9 dorsal spines, 12 dorsal soft rays, 3 anal spines and 12 anal soft rays. This wrasse has a yellow-orange or reddish-pink color that is darker on the back and lighter on the belly, sometimes marked with green and gray stripes. Head shows vertical narrow light blue lines and there are scales with brisk reflexes on the abdomen. Upon capture, this fish has been known to turn its mouth and sharp protruding teeth past 90 degrees to either side in relationship to its own body as an attempt to be released from capture. [2]

Distribution and habitat

The pearly razorfish is widespread throughout the western and eastern subtropical and tropical Atlantic Ocean, as well as the Mediterranean Sea. It inhabits clear, shallow littoral areas with sandy or muddy bottoms, at depths of 1 to 20 m. In winter it migrates to greater depths, up to 90–150 m.

Behavior and diet

Xyrichtys novacula buries itself rapidly in the bottom when disturbed. It feeds on small invertebrates such as crustaceans, mollusks and echinoderms. [2]

X. novaculae caught in Santorini, Greece Xyrichtys novacula catch.jpg
X. novaculae caught in Santorini, Greece

Synonyms

A large number of specific names have been determined to refer to this species as junior synonyms: [2]

  • Coryphaena novaculaLinnaeus, 1758
  • Hemipteronotus novacula(Linnaeus, 1758)
  • Novacula novacula(Linnaeus, 1758)
  • Coryphaena psittacusLinnaeus, 1766
  • Hemipteronotus psittacus(Linnaeus, 1766)
  • Xyrichthys psittacus(Linnaeus, 1766)
  • Coryphaena lineata J. F. Gmelin, 1789
  • Novacula lineata(J. F. Gmelin, 1789)
  • Coryphaena lineolata Rafinesque, 1810
  • Novacula lineolata(Rafinesque, 1810)
  • Amorphocephalus granulatus S. Bowdich, 1825
  • Novacula coryphena A. Risso, 1827
  • Novacula coryphaenaA. Risso, 1827
  • Xyrichthys uniocellatus Agassiz, 1831
  • Xyrichthys cultratus Valenciennes, 1840
  • Novacula cultrata(Valenciennes, 1840)
  • Xyrichthys vittaValenciennes, 1840
  • Xyrichthys vermiculatus Poey, 1860
  • Xyrichthys argentimaculata Steindachner, 1861
  • Xyrichthys rosipes D. S. Jordan & C. H. Gilbert, 1884
  • Xyrichthys jessiaeD. S. Jordan, 1888
  • Hemipteronotus copei Fowler, 1900
  • Xyrichthys binghami Mowbray, 1925

Predators

The Pearly razorfish has been shown to be successful bait for the Greater Amberjack species (aka reef donkey).

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References

  1. Pollard, D.; Rocha, L.; Ferreira, C.E.; Francini-Filho, R.; Moura, R.R. (2010). "Xyrichtys novacula". IUCN Red List of Threatened Species . 2010: e.T187696A8603436. doi: 10.2305/IUCN.UK.2010-4.RLTS.T187696A8603436.en . Retrieved 19 November 2021.
  2. 1 2 3 4 Froese, Rainer; Pauly, Daniel (eds.) (2013). "Xyrichtys novacula" in FishBase . October 2013 version.

Bibliography