Bovichtus angustifrons

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Bovichtus angustifrons
BovichtusAngustifMDN.jpg
A Dragonet (Bovichtus angustifrons) in The Arches Marine Sanctuary, Twelve Apostles, Victoria, 2013
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Bovichtidae
Genus: Bovichtus
Species:
B. angustifrons
Binomial name
Bovichtus angustifrons
Regan, 1913

Bovichtus angustifrons, the dragonet, horny, horny thornfish, marblefish, thornfish or variegated marblefish, is a species of marine ray-finned fish, a temperate icefish or thornfish, belonging to the family Bovichtidae. It is endemic to southeastern Australia and Tasmania on rocky reefs in shallow waters.

Contents

Taxonomy

Bovichtus angustifrons was first formally described in 1913 by the British ichthyologist Charles Tate Regan with the type locality given as Tasmania. [1] The specific name angustifrons is a compound of angustus which means narrow and fronsmeaning "front", "face" or "brow", a reference to the narrower space between the eyes in comparison with B. diacanthus and B. variegatus . [2]

Description

Bovichtus angustifrons has a large head and a thick anterior part of the body, the body tapers towards the caudal fin. There is an obvious spine on upper angle on the margin of the operculum and it has large eyes. The pelvic fins are large, originating under and before the pectoral fins. There are no scales. [3] There are 8 spines in the first dorsal fin and 18-19 soft rays in the second dorsal fin while the anal fin has 18 soft rays. This species attains a maximum total length of 28 cm (11 in). [4] It is a camouflaged species which may vary in colour from pale bluish-grey to pale brown with darker mottling, spotting or blotching which is reddish to brown. [5] The juveniles are a drab grey-brown in colour. [6]

Distribution and habitat

Bovichtus angustifrons is endemic southern Australia where it is found from Green Cape in southern New South Wales to about Ceduna in the Great Australian Bight on the coast of South Australia. It is also found around Tasmania. It occurs on shallow rocky reefs and is frequently observed in tidepools and around the pylons of jetties. [5] It lives at depths down to 15 m (49 ft). [3]

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References

  1. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Bovichtus". Catalog of Fishes . California Academy of Sciences . Retrieved 11 September 2021.
  2. Christopher Scharpf & Kenneth J. Lazara, eds. (12 April 2021). "Order Perciformes: Suborder Notothenoididei: Families Bovichtidae, Pseaudaphritidae, Elegopinidae, Nototheniidae, Harpagiferidae, Artedidraconidae, Bathydraconidae, Channichthyidae and Percophidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 11 September 2021.
  3. 1 2 "Dragonet Bovichtus angustifrons (Regan, 1913)". Port Phillip Bay. Retrieved 11 September 2021.
  4. Froese, Rainer; Pauly, Daniel (eds.) (2021). "Bovichtus angustifrons" in FishBase . June 2021 version.
  5. 1 2 Dianne J. Bray. "Bovichtus angustifrons". Fishes of Australia. Museums Victoria. Retrieved 11 September 2021.
  6. "Bovichtus angustifrons". Reef Life Survey. Retrieved 11 September 2021.