Chaetodon falcula

Last updated

Contents

Chaetodon falcula
Bep chaetodon falcula.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Chaetodontidae
Genus: Chaetodon
Subgenus: Chaetodon (Rabdophorus)
Species:
C. falcula
Binomial name
Chaetodon falcula
Bloch, 1795
Synonyms [2]
  • Anisochaetodon falcula(Bloch, 1795)
  • Chaetodon dizoster Valenciennes, 1831
  • Tetragonoptrus dizoster(Valenciennes, 1831)

Chaetodon falcula, the blackwedged butterflyfish or falcula butterflyfish, is a species of marine ray-finned fish a butterflyfish belonging to the family Chaetodontidae. It is found in the Indian Ocean.

Description

Chaetodon falcula has a white body which is marked with a number of thin vertical dark grey lines. It has two clear black saddle-like blotches on the dorsal part of the body, a vertical black eye band and a black caudal peduncle. The dorsal, anal and caudal fins are yellow. [3] The yellow continues onto the body adjacent to the dorsal and anal fins. [4] There are 12–13 spines in the dorsal fin and 23–25 soft rays while the anal fin contains 3 spines and 20–21 soft rays. This species attains a total length of 20 centimetres (7.9 in). [2]

Distribution

Chaetodon falcula is found in the Indian Ocean where it occurs along the East African coast between Kenya and South Africa, Madagascar and the other western and central islands of the Indian Ocean, Sri Lanka, southern India, including the Andaman and Nicobar Islands, and from the waters of western Thailand east as far as Java. [1] It occurs in the Cocos (Keeling) Islands, which are part of Australia, too. [4]

Habitat and biology

Chaetodon falcula is found at depths of 1 to 15 metres (3.3 to 49.2 ft). [1] They are found on the reef edge and upper slope normally in habitats subjected to strong currents although the juveniles hide among corals. Typically seen in pairs or in small aggregations, [2] of up to 20 fish. [1] Their diet is made up feeds of the polyps, worms, sea anemones, crustaceans, sponges, the feet of sea urchin and other invertebrates. [3] This species forms distinct pairs to breed and the pelagic eggs are scattered in open water. [5]

Systematics

Chaetodon falcula was first formally described in 1795 by the German physician and naturalist Marcus Elieser Bloch (1723-1797) with the type locality given as Tharangambadi in India. [6] The specific name falcula is a diminutive of the Latin falx or falcis meaning a "sickle" or a "scythe" and is a reference to the wedge shaped black saddle blotches which Bloch illustrated as sickle-shaped, which they are not in modern photographs. [7]

With its sister species, the similar-looking Pacific double-saddle butterflyfish (C. ulietensis), [4] C. falcula belongs to the large subgenus Rabdophorus which might warrant recognition as a distinct genus. Other fairly close relatives are the quite differently-shaped but similarly coloured lined (C. lineolatus) and spot-naped butterflyfishes (C. oxycephalus), while the blue-cheeked butterflyfish (C. semilarvatus) seems to be a far more basal lineage relative to all of these. The bluish vertical lines are present in all of these, while a white body with yellow behind and black on back and caudal peduncle are only shared among the four less ancient species. [8] [9]

Related Research Articles

<span class="mw-page-title-main">Reef butterflyfish</span> Species of fish

The reef butterflyfish. also known as the least butterflyfish, Atlantic butterflyfish, butterbun or school mistress, is a species of marine ray-finned fish, a butterflyfish of the family Chaetodontidae. It is found in the western Atlantic Ocean.

<span class="mw-page-title-main">Bluecheek butterflyfish</span> Species of fish

The blue-cheeked butterflyfish is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the northwestern Indian Ocean.

<span class="mw-page-title-main">Teardrop butterflyfish</span> Species of fish

The teardrop butterflyfish is a species of marine ray-finned fish, a butterflyfish belonging to the (family Chaetodontidae. It is found in the Indo-Pacific region.

<i>Chaetodon ulietensis</i> Species of fish

Chaetodon ulietensis, the Pacific double-saddle butterflyfish or false falcula butterflyfish, is a species of butterflyfish. It flourishes in coral-rich environments in the central Indo-Pacific region. Their range extends from the Cocos-Keeling Islands to the Tuamotu Islands, and north to Japan. They are usually found from the surface to 20 m depths, and like shallow channels with high current.

<span class="mw-page-title-main">Sunburst butterflyfish</span> Species of fish

The sunburst butterflyfish, also known as the black-lipped butterflyfish, "blacklip butterflyfish" or Klein's butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. This is an Indo-Pacific species of reef habitats.

<span class="mw-page-title-main">Lined butterflyfish</span> Species of fish

The lined butterflyfish is a species of marine ray-finned fish. a butterflyfish belonging to the family Chaetodontidae, one of the largest species in the genus Chaetodon. It has a wide range from the Red Sea to South Africa and as far east as southern Japan and Hawaii.

<span class="mw-page-title-main">Dotted butterflyfish</span> Species of fish

The dotted butterflyfish is a species of marine ray-finned fish. a butterflyfish belonging to the family Chaetodontidae. It is found in the Indian Ocean and Pacific Ocean.

<span class="mw-page-title-main">Scrawled butterflyfish</span> Species of fish

The scrawled butterflyfish, also known as Meyer's butterflyfish or the maypole butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the Indian and Pacific Oceans.

<span class="mw-page-title-main">Eightband butterflyfish</span> Species of fish

The eight-banded Butterflyfish, also known as the eightband butterflyfish or eight-striped butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the Indo-Pacific region where it is associated with reefs.

<span class="mw-page-title-main">Bluelashed butterflyfish</span> Species of fish

The bluelashed butterflyfish, also known as the eclipse butterflyfish, archer butterflyfish or Bennett's butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae, It is found in the Indo-Pacific.

<span class="mw-page-title-main">Spot-nape butterflyfish</span> Species of fish

The Spot-naped Butterflyfish, also known as the pig-face butterflyfish, is a species of marine ray-finned fish. a butterflyfish belonging to the family Chaetodontidae. It is found in the Indo- West Pacific region from Sri Lanka to Queensland, north to Indonesia and the Philippines.

<span class="mw-page-title-main">Latticed butterflyfish</span> Species of fish

The latticed butterflyfish, also known as Raffles’ coralfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the Indo-Pacific region.

<span class="mw-page-title-main">Yellow-dotted butterflyfish</span> Species of fish

The Yellow-dotted Butterflyfish is a poorly known marine ray-finned fish species, a butterflyfish belonging to the family Chaetodontidae. It is found in the Indi-Western Pacific Region.

<i>Chaetodon mertensii</i> Species of fish

Chaetodon mertensii, the atoll butterflyfish, yellowback butterflyfish or Merten's butterflyfish, is a species of marine ray finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the western Pacific Ocean.

<i>Chaetodon pelewensis</i> Species of fish

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.

<i>Chaetodon wiebeli</i> Species of fish

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.

<i>Chaetodon plebeius</i> Species of fish

Chaetodon plebeius, the blueblotch butterflyfish, bluespot butterflyfish, bluedash butterflyfish or grey-blotched butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is native to the Indian and Pacific Oceans.

<i>Chaetodon gardineri</i> Species of fish

Chaetodon gardineri, Gardiner's butterflyfish, is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is native to the Indian Ocean.

<i>Chaetodon rainfordi</i> Species of fish

Chaetodon rainfordi, Rainfords's butterflyfish, also known as the gold-barred butterflyfish or the Northern butterflyfish, is a species of marine ray-finned fish, a butterflyfish, belonging to the family Chaetodontidae. It is found in the southwestern Pacific Ocean where it is associated with coral reefs.

<span class="mw-page-title-main">West Australian butterflyfish</span> Species of fish

The West Australian butterflyfish, also known as the Western butterflyfish or assarius butterflyfish is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is native to the west coast of Australia.

References

  1. 1 2 3 4 Allen, G.R.; Myers, R.F. (2010). "Chaetodon falcula". IUCN Red List of Threatened Species . 2010: e.T165607A6066720. doi: 10.2305/IUCN.UK.2010-4.RLTS.T165607A6066720.en . Retrieved 19 November 2021.
  2. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2019). "Chaetodon falcula" in FishBase. December 2019 version.
  3. 1 2 "Chaetodon falcula". Saltcorner. Bob Goemans. 2012. Retrieved 21 December 2020.
  4. 1 2 3 Bray, D.J. (2020). "Chaetodon falcula". Fishes of Australia. Museums Victoria. Retrieved 21 December 2020.
  5. ↑ "Falcula Butterflyfish". Maidenhead Aquatics. Retrieved 21 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 21 December 2020.
  7. ↑ 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 21 December 2020.
  8. ↑ 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. doi:10.1016/j.ympev.2007.05.018.
  9. ↑ 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 2008-09-02.
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.