Chaetodon pelewensis

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Chaetodon pelewensis
Dot and dash butterflyfish (Chaetodon pelewensis).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 (Exornator)
Species:
C. pelewensis
Binomial name
Chaetodon pelewensis
Kner, 1868
Synonyms [2]

Chaetodon germanus De Vis, 1884

Chaetodon pelewensis, the dot dash butterflyfish, spotbanded butterflyfish or punctato butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the western Pacific Ocean.

Contents

Description

Chaetodon pelwensis has a dusky yellow body with diagonal stripes across the body and black-margined gold vertical bar through the eye. [3] There is a black spot on the head. The stripes break up into spots towards the head and on the lower flanks. [4] The margins of the fins are bright yellow [5] and the base of the caudal fin is bright orange. [6] The dorsal fin has 13-14 spines and 22-25 soft rays while the anal fin has 3 spines and 17-18 soft rays. It attains a maximum total length of 12.5 centimetres (4.9 in). [2]

Distribution

Chaetodon pelewensis is found across the southern Pacific Ocean from Papua New Guinea to the Tuamotu Archipelago. This species is abundant on the Great Barrier Reef and in the Coral Sea. [1] In Australia it extends as far south as central New South Wales and Lord Howe Island. [6]

Habitat and biology

Chaetodon pelewensis is found in coral reefs at depths of at least 45 metres (148 ft). [1] They feed largely on coral polyps and some benthic invertebrates. [4] This species is oviparous and monogamous, breeding in pairs. [2] Occasionally it will form mixed pairs with the spotband butterflyfish (C. punctatofasciatus), [6] and these species are known to hybridise. [4]

Taxonomy and etymology

Chaetodon pelewensis was first formally described in 1868 by the Austrian ichthyologist Rudolf Kner (1810-1869) with the type locality given as Palau in the Western Pacific, Pelew Inseln in German, in error when the correct type locality is probably the Society Islands. [7] The specific name reflects the erroneous designation of the type locality. [8] This species is placed in the subgenus Exornator, if the genus Chaetodon is split up, Exornator might become a subgenus of Lepidochaetodon. [9] [10]

Utilisation

Chaetodon pelewensis is commonly found in the aquarium trade and in the period 1988 to 2002 over 12,000 individuals of this species were traded. [1]

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References

  1. 1 2 3 4 Pyle, R.; Myers, R.F.; Craig, M.T.; Pratchett, M. (2010). "Chaetodon pelewensis". IUCN Red List of Threatened Species . 2010: e.T165653A6081960. doi: 10.2305/IUCN.UK.2010-4.RLTS.T165653A6081960.en . Retrieved 20 November 2021.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.). "Chaetodon pelewensis". FishBase . December 2019 version.
  3. ↑ "Chaetodon pelewensis". Reef Life Survey. Retrieved 29 November 2020.
  4. 1 2 3 Dianne J. Bray. "Chaetodon pelewensis". Fishes of Australia. Museums Victoria. Retrieved 29 November 2020.
  5. ↑ "Sunset butterflyfish". liveaquaria.com. Retrieved 29 November 2020.
  6. 1 2 3 Mark McGrouther (19 February 2019). "Dot-and-Dash Butterflyfish, Chaetodon pelewensis Kner, 1868". Australian Museum. Retrieved 29 November 2020.
  7. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Chaetodon pelewensis". Catalog of Fishes . California Academy of Sciences . Retrieved 29 November 2020.
  8. ↑ 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 30 November 2020.
  9. ↑ 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.
  10. ↑ Hsu, Kui-Ching; Chen, Jeng-Ping & Shao, Kwang-Tsao (2007). "Molecular phylogeny of Chaetodon (Teleostei: Chaetodontidae) in the Indo-West Pacific: evolution in geminate species pairs and species groups" (PDF). Raffles Bulletin of Zoology Supplement. 14: 77–86. Archived from the original (PDF) on 2007-08-11. Retrieved 2020-11-29.
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