Chaetodon wiebeli

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Chaetodon wiebeli
Chaetodon wiebeli (Kaup, 1863).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Chaetodontidae
Genus: Chaetodon
Subgenus: Chaetodon (Rabdophorus)
Species:
C. wiebeli
Binomial name
Chaetodon wiebeli
Kaup, 1863
Synonyms [2]
  • Chaetodon bellamaris Seale, 1914
  • Chaetodon collare knerii Ahl, 1923
  • Chaetodon frenatus Fowler, 1935

Chaetodon wiebeli, commonly known as the Hong Kong butterflyfish, Wiebel's butterflyfish or blackcap butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is native to the Western Pacific Ocean.

Contents

Description

Chaetodon wiebeli has an oval shaped, deep and strongly compressed body with a head which is the same height as its width and a short snout with a small protractile mouth equipped with setiform teeth in its jaws. [3] These teeth are referred to in the genus name Chaetodon which means "bristle tooth". [4] It has a smooth preopercle which does not have any obvious spines. [3] The colouration is mainly yellow marked with oblique brown lines. There is a vertical black band running through the eye, with a white bar to its rear, and a black blotch on the forehead. The dorsal, anal, pelvic and caudal fins are yellow, although the caudal fin has a black margin. [5] The dorsal fin contains a total of 12–13 spines and 22–25 soft rays while the anal fin has 3 spines and 18–20 soft rays. This species attains a maximum total length of 19 centimetres (7.5 in). [2]

Distribution

Chaetodon wiebeli is found in the western Pacific Ocean from southern Japan and South Korea to northern Java, extending into the Gulf of Thailand. [1]

Habitat and biology

Chaetodon wiebeli is found in both rocky and coral reefs, where they are normally encountered in pairs and small shoals. [2] They feed on coral polyps, benthic invertebrates and algae. [5] This is an oviparous species which forms pairs during breeding. [2] They may be solitary and their main feeding technique is grazing algae off rocks. [1] They can ben found at depths of 4 to 25 metres (13 to 82 ft). [3]

Systematics

Chaetodon wiebeli was first formally described in 1863 by the German ichthyologist Johann Jakob Kaup (1803–1873) with the type locality given as Canton in China. [6] The specific name honours Kaup's friend, the naturalist and one of the founders of the Zoological Museum in Hamburg, Karl Maximilian Wiebel (1808–1888). [4] It belongs to the large subgenus Rabdophorus which might warrant recognition as a distinct genus. [7]

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References

  1. 1 2 3 Myers, R.F.; Pratchett, M. (2010). "Chaetodon wiebeli". IUCN Red List of Threatened Species . 2010: e.T165685A6091062. doi: 10.2305/IUCN.UK.2010-4.RLTS.T165685A6091062.en . Retrieved 20 November 2021.
  2. 1 2 3 4 Froese, Rainer; Pauly, Daniel (eds.). "Chaetodon weibeli". FishBase . December 2019 version.
  3. 1 2 3 "Chaetodon weibeli". Fishes of Taiwan. Retrieved 29 December 2020.
  4. 1 2 Christopher Scharpf & Kenneth J. Lazara (21 July 2020). "Order ACANTHURIFORMES (part 1): Families LOBOTIDAE, POMACANTHIDAE, DREPANEIDAE and CHAETODONTIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 29 December 2020.
  5. 1 2 "Chaetodon weibeli". Saltcorner. Bob Goemans. 2012. Retrieved 29 December 2020.
  6. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Chaetodon". Catalog of Fishes . California Academy of Sciences . Retrieved 29 December 2020.
  7. ↑ Fessler, Jennifer L.; Westneat, Mark W (2007). "Molecular phylogenetics of the butterflyfishes (Chaetodontidae): Taxonomy and biogeography of a global coral reef fish family". Molecular Phylogenetics and Evolution. 45 (1): 50–68. Bibcode:2007MolPE..45...50F. doi:10.1016/j.ympev.2007.05.018. PMID   17625921.


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