Genicanthus semifasciatus

Last updated

Genicanthus semifasciatus
Genicanthus semifasciatus.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. semifasciatus
Binomial name
Genicanthus semifasciatus
(Kamohara, 1934)
Synonyms [2]

Holacanthus semifasciatusKamohara, 1934

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.

Contents

Description

Genicanthus semifasciatus is sexually dichromatic; the males and females show different colouration and patterning. The male has a yellow head and anterior flanks with a darker yellow dorsal area which is marked with dusky vertical bars. The dorsal area of females is greyish brown and white ventrally, with a yellow margin to the dorsal fin with a black head and caudal fin, and black on the head and tail. In both sexes the forked tail narrows at its base to create a "swallow tail". [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 semifasciatus is found in the Western Pacific Ocean. Here it is found from southern Japan, including the Ogasawara Islands, the Izu Islands and the Ryukyu Islands, to the northern Philippines. [1]

Habitat and biology

Genicanthus semifasciatus occurs at depths between 15 and 200 metres (49 and 656 ft). [1] Here it can be found on the seaward sides of rocky and coral reefs. This species is protogynously hermaphroditic and is normally encountered in harems consisting of a male and several females. [2] It feeds on plankton in the water column. [3]

Systematics

Genicanthus semifasciatus was first formally described in 1934 as Holocanthus semifasciatus by the Japanese ichthyologist Toshiji Kamohara (1901–1972) with the type locality given as Kashiwajima in the Kochi Prefecture of Japan. [4] The specific name is a compound of semi meaning “half” and fasciatus meaning "banded", referring to the banding on the males’ backs which does not extend onto the abdomen. [5]

Utilisation

Genicanthus semifasciatus is rather infrequently found in the aquarium trade. [3] The specimens which do appear in the trade usually come from the Philippines. [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">Japanese angelfish</span> Species of fish

The Japanese angelfish or Japanese pygmy angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the western Pacific Ocean.

<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.

The resplendent pygmy angelfish is a species of marine ray-finned fish, a marine angelfish, belonging to the family Pomacanthidae. It is endemic to Ascension Island in the South Atlantic Ocean.

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

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

<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>Pomacanthus maculosus</i> Species of fish

Pomacanthus maculosus, the yellowbar angelfish, half-moon angelfish, yellow-marked angelfish, yellowband angelfish or yellow-blotched angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the western Indian Ocean and, more recently, in the eastern Mediterranean Sea.

<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>Centropyge venusta</i> Species of fish

Centropyge venusta, the purplemask angelfish is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae, It is found in the Western Pacific and is occasionally found the aquarium trade.

<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>Chaetodon guentheri</i> Species of fish

Chaetodon guentheri, Günther's butterflyfish or the crochet butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is native to The western Pacific Ocean.

<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>Centropyge abei</i> Species of fish

Centropyge abei is a species of marine ray-finned fish, a small marine angelfish belonging to the family Pomacanthidae. It is found in the western Pacific Ocean.

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

The Cocos-Keeling angelfish, or Colin's angelfish is a small species of ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indo-West Pacific region.

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

Centropyge shepardi, the mango angelfish, Shepard’s angelfish or Shepard’s pygmy angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Western Pacific Ocean.

<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.

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

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

The halfbanded 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.

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. (2010). "Genicanthus semifasciatus". IUCN Red List of Threatened Species . 2010: e.T165856A6150009. doi: 10.2305/IUCN.UK.2010-4.RLTS.T165856A6150009.en . Retrieved 20 November 2021.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.). "Genicanthus semifasciatus". FishBase . December 2019 version.
  3. 1 2 3 "Genicanthus semifasciatus". Saltcorner!. Bob Goemans. 2012. Retrieved 19 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.