Halfbanded angelfish

Last updated

Halfbanded angelfish
Genicanthus semicinctus.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acanthuriformes
Family: Pomacanthidae
Genus: Genicanthus
Species:
G. semicinctus
Binomial name
Genicanthus semicinctus
(Waite, 1900)
Synonyms [2]

Holocanthus semicinctusWaite, 1900

The halfbanded angelfish (Genicanthus semicinctus) is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the southwestern Pacific Ocean.

Contents

Description

Genicanthus semicinctus like the other angelfishes in the genus Genicanthus , shows sexual dichromatism, the males and females show differences in colour and pattern. The males are marked with thin close-set wavy black, vertical bars which run from the back to two-thirds down the flanks with the lower third of the body being yellowish-orange. They have a yellow dorsal fin and yellow lobes with long filaments on the caudal fin which has black spots. The chest also has black spots. The females are plain dark grey on the back with a whitish abdomen and have dark lobes to the caudal fin. Their fins have thin blue margins and there is a black blotch above the eye, this has a vivid blue margin. [3] The dorsal fin contains 15 spines and 15-16 soft rays while the anal fin has 3 spines and 17 soft rays. This species attains a maximum total length of 21 centimetres (8.3 in). [2]

Distribution

Genicanthus semicinctus is found in the southwestern Pacific Ocean. Here it is found only around Lord Howe Island, an Australian territory in the Tasman Sea, and the New Zealand outlying islands of the Kermadec Islands. [1]

Habitat and biology

Genicanthus semicinctus is found at depths between 10 and 100 metres (33 and 328 ft). [1] it is found on the deep outer slopes of coral and rocky reefs. It normally occurs in small groups, harems of a male and as many as 4 females. This species is a protogynous hermaphrodite and if the male in a group disappears the dominant female will change into a male, this change takes a few weeks. [3]

Systematics

Genicanthus semicinctus was first formally described as Holocanthus semicinctus in 1900 by the British-born Australian ichthyologist Edgar Ravenswood Waite (1866–1928) with the type locality given as Lord Howe Island. [4] The specific name is a compound of semi meaning “half” and cinctus meaning “bands”. [5]

Utilisation

Genicanthus semicinctus is very rare in the aquarium trade. [1]

Related Research Articles

<span class="mw-page-title-main">Lemonpeel angelfish</span> Species of fish

The lemonpeel angelfish, also known as the yellow angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indo-Pacific region.

<span class="mw-page-title-main">Twospined angelfish</span> Species of fish

The twospined angelfish, also known as the dusky angelfish, or coral beauty, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. They are found in the Indo-Pacific.

<i>Genicanthus watanabei</i> Species of fish

Genicanthus watanabei, the blackedged angelfish or Watanabe’s angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Pacific Ocean.

<span class="mw-page-title-main">Bluering angelfish</span> Species of fish

The bluering angelfish, also known as the annularis angelfish and the blue king angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is member of the genus Pomacanthus, composed of large marine angelfish.

<i>Centropyge eibli</i> Species of fish

Centropyge eibli, the blacktail angelfish, red stripe angelfish, orangelined angelfish, or Eibl dwarf angel is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found near reefs in the Indo-Pacific.

<i>Genicanthus bellus</i> Species of fish

Genicanthus bellus, the ornate angelfish, bellus angelfish or bellus lyretail angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indo-Pacific region.

<i>Genicanthus semifasciatus</i> Species of fish

Genicanthus semifasciatus, the Japanese swallow, is a species of marine ray-finned fish, a marine angelfish, belonging to the family Pomacanthidae. It is found in the Western Pacific.

<i>Chaetodontoplus meridithii</i> Species of fish

Chaetodontoplus meridithii, the Queensland yellowtail angelfish, Meredith's angelfish or yellow-finned angelfish, yellowtail angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found off eastern Australia.

<i>Centropyge tibicen</i> Species of fish

Centropyge tibicen, the keyhole angelfish, black angelfish, whitespot angelfish or puller angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indo-Pacific region.

<i>Centropyge multicolor</i> Species of fish

Centropyge multicolor, the multicolor angelfish or pearlback angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is from the Pacific Ocean that sometimes makes its way into the aquarium trade. It grows to a size of 9 cm in length.

<i>Genicanthus lamarck</i> Species of fish

Genicanthus lamarck, the blackstriped angelfish or Lamarck's angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It occurs in the Indo-West Pacific region.

<i>Centropyge multispinis</i> Species of fish

Centropyge multispinis, known by the common names bluefin dwarf, brown pygmy angelfish, dusky angelfish, dusky cherub, many-spined angelfish, and multispined angelfish, is a species of marine ray finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in tropical waters of the Indo-Pacific area.

<i>Centropyge vrolikii</i> Species of fish

Centropyge vrolikii, known commonly as the pearlscale angelfish or half black angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indo-Pacific.

<i>Genicanthus personatus</i> Species of fish

Genicanthus personatus the masked angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is endemic to Hawaii.

<i>Chaetodontoplus mesoleucus</i> Species of fish

Chaetodontoplus mesoleucus, the vermiculated angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indo-West Pacific region.

<i>Genicanthus melanospilos</i> Species of fish

Genicanthus melanospilos, the spotbreast angelfish, blackspot angelfish or swallowtail angelfish, the family Pomacanthidae. It occurs in the Indo-West Pacific region.

<i>Genicanthus caudovittatus</i> Species of fish

Genicanthus caudovittatus, the zebra angelfish, swallowtail angelfish, and lyretail angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indian Ocean.

Chaetodontoplus ballinae, the Ballina angelfish, is a species of marine ray-finned fish, a marine angelfish, belonging to the family Pomacanthidae. It is endemic to eastern Australia.

Genicanthus takeuchii, the spotted angelfish or Takeuchi’s angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the northwestern Pacific Ocean

The Pitcairn angelfish is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the southwestern Pacific Ocean.

References

  1. 1 2 3 4 Pyle, R. & Myers, R.F. (2020) [amended version of 2010 assessment]. "Genicanthus semicinctus". IUCN Red List of Threatened Species . 2020: e.T165866A177436288. doi: 10.2305/IUCN.UK.2020-3.RLTS.T165866A177436288.en . Retrieved 20 February 2021.
  2. 1 2 Froese, Rainer; Pauly, Daniel (eds.). "Genicanthus semicinctus". FishBase . December 2019 version.
  3. 1 2 Bray, D.J. (2020). "Genicanthus semicinctus". Fishes of Australia. Museums Victoria. Retrieved 20 February 2021.
  4. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Genicanthus". Catalog of Fishes . California Academy of Sciences . Retrieved 19 February 2021.
  5. ↑ 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 19 February 2021.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.