Barred fingerfin

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Barred fingerfin
C.pixi.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Cheilodactylidae
Genus: Cheilodactylus
Species:
C. pixi
Binomial name
Cheilodactylus pixi

The barred fingerfin (Cheilodactylus pixi) is a species of marine ray-finned fish, belonging to the family Cheilodactylidae, commonly referred to as morwongs. It is found only in the southeastern Atlantic and southwestern Indian Oceans off the coasts of South Africa.

Contents

Taxonomy

The barred fingerfin was first formally described in 1980 by the South African ichthyologist Margaret Mary Smith with the type locality given as off the mouth of the Kowie River in the Eastern Cape in South Africa. [1] Phylogenetic analyses and genetic studies of the morwongs have not supported the traditional arrangement of the families Cheilodactylidae and Latridae. This has led to some authorities suggesting that the majority of species in Cheilodactylidae should be placed in Latridae. [2] [3] A result of this rearrangement is that the only species which would remain in Cheilodactylidae are this species and C. fasciatus , both from southern Africa. [2] This is because these analyses resolved the genus Cheilodactylus as polyphyletic. [2] [4] These studies appear to show that most of the species in Cheilodactylus sensu lato instead apparently to belong in several different genera and are not even members of the same family, but how many and their exact delimitation is not clear at present. [2] [5] [6] The outlier species have been assigned to Chirodactylus , Goniistius , Morwong and Pseudogoniistius , but DNA and morphologic analyses found those species to be nested within Latridae and more derived than the kelpfish, marblefish and this species. [6] [4] [2] The specific name honours Pixie John who lived in Port Alfred and sent the type specimen to Smith. [7]

Description

The barred fingerfin has a weakly pointed snout and a concave ventral profile. [8] The dorsal fin contains 18-20 spines and 19-23 soft rays while the anal fin has 3 spines and 8-11 soft rays. This species attains a maximum total length of 18 cm (7.1 in). [9] The overall colour of the ody is pale grey with a speckling of pale brown spots and overlain with four clear, diagonal brown bars. There is a fifth more indistinct bar to the back of the head extending to the base of the pectoral fins. The colour of the fins is translucent orange. [8]

Distribution and habitat

The barred fingerfin is endemic to South Africa where it is found from the False Bay to Coffee Bay in KwaZulu Natal. [10] This species can be found along rocky coastlines and on offshore rocky reefs at depths of 5 to 30 m (16 to 98 ft). [11]

Biology

The barred fingerfin feeds on benthic invertebrates. It is a solitary species which is often observed perched on the reef in the daylight hours. [11] It is known to be preyed upon by the copper shark (Carcharhinus brachyurus) and the sharptooth houndshark (Triakis megalopterus). [9]

Barred Fingerfin at Rocky bank Barred Fingerfin at Rocky bank P9205402.JPG
Barred Fingerfin at Rocky bank

Related Research Articles

Cheilodactylidae Family of fishes

Cheilodactylidae, commonly called morwongs but also known as butterfish, fingerfins, jackassfish, sea carp, snappers, and moki, is a family of marine ray-finned fish. They are found in subtropical oceans in the Southern Hemisphere. The common name "morwong" is also used as a name for several unrelated fish found in Australian waters, such as the painted sweetlips. The classification of the species within the Cheilodactylidae and the related Latridae is unclear.

Red moki Species of fish

The red moki also known as the banded morwong, brown-banded morwong, carp or nanua is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, commonly referred to as morwongs. It is found off southern Australia and the North Island of New Zealand

Porae Species of fish

The porae, the grey morwong, blue morwong, butterfish, Douglas' morwong, Eastern blue morwong, great perch, queen snapper, rubberlip morwong or silver morwong, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. found around south eastern Australia and the north eastern coast of the North Island of New Zealand at depths of about 10 to 100 metres, on sandy and rocky coasts.

<i>Nemadactylus macropterus</i> Species of fish

Nemadactylus macropterus, the tarakihi, jackass morwong or deep sea perch, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found in the south western Pacific Ocean, in Australia and New Zealand. Although there are records from the southern Indian Ocean and southwestern Atlantic, these may be due to misidentifications of similar species.

Latridae Family of fishes

Latridae commonly called trumpeters, is a family of marine ray-finned fish. They are found in temperate seas in the Southern Hemisphere. The classification of the species within the Latridae and the related Cheilodactylidae is unclear.They are fished commercially and for sport.

Redfingers Species of fish

The redfingers is a species of marine ray-finned fish, belonging to the family Cheilodactylidae, commonly referred to as morwongs. It is found only off the coasts of Namibia and South Africa, in rock pools and from shallow depths to 120 m, on rocky reef areas. Its length is up to 30 cm.

Magpie perch Species of fish

The magpie perch, magpie morwong or black-striped morwong, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found off southern Australia and northern New Zealand from shallow depths to 250 m (820 ft).

Red morwong Species of fish

The red morwong, also known as the sea carp, is a species of marine ray finned fish traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found off southeast Australia and the North Island of New Zealand from shallow depths to at least 55 m, on rocky reef and coastal areas. Its length is between 30 and 60 cm.

Painted moki Species of fish

The painted moki, also known as the painted morwong, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found in the southwestern Pacific Ocean.

St. Pauls fingerfin Species of fish

St. Paul's fingerfin, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is native to the southwestern Indian Ocean and southeastern Atlantic Ocean.

<i>Cheilodactylus</i> Genus of fishes

Cheilodactylus is a genus of marine ray-finned fishes belonging to the family Cheilodactylidae, known as morwongs, although this name is not unique to this family. They are found in the temperate waters of the southern hemisphere and in the North Pacific Ocean.

<i>Chirodactylus</i> Genus of fish

Chirodactylus is a genus of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. They are native to the Atlantic, Indian and eastern Pacific oceans off southern Africa and South America.

Dusky morwong Species of fish

The dusky morwong is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is native to the western and southern coastal reefs of Australia. This species is the only known member of its genus.

<i>Nemadactylus</i> Genus of fishes

Nemadactylus is a genus of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. They are found in the South Atlantic, Indian and South Pacific Oceans.

<i>Latris</i> (fish) Genus of fishes

Latris is a genus of marine ray finned fish belonging to the family Latridae, the trumpeters. They are found in the southern oceans.

<i>Goniistius</i> Genus of Actinopterygii

Goniistius is a subgenus of marine ray-finned fishes, traditionally classified as being within the genus Cheilodactylus and belonging to the family Cheilodactylidae, known as morwongs, although this name is not unique to this family and the true taxonomic placement of this taxon requires clarification. They are found in the Pacific Ocean and southeastern Indian Ocean.

<i>Morwong</i> (genus) Genus of fishes

Morwong is a genus of marine ray-finned fish traditionally classified as a subgenus within the genus Cheilodactylus and as belonging to the family Cheilodactylidae found in oceans off Australia and New Zealand. They were formerly included in the genus Cheilodactylus in family Cheilodactylidae, but based on genetic and morphological analyses they have strongly suggested that the genus Morwong is a valid genus and should be placed in the family Latridae.

<i>Chirodactylus variegatus</i> Species of fish

Chirodactylus variegatus, the Peruvian morwong or bilagai, is a species of marine ray-finned fish traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found in the southeastern Pacific Ocean off the western coast of South America.

Spottedtail morwong

The spottedtail morwong is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is found in the northwest Pacific Ocean.

<i>Nemadactylus valenciennesi</i> Species of fish

Nemadactylus valenciennesi, is a species of marine ray-finned fish, traditionally regarded as belonging to the family Cheilodactylidae, the members of which are commonly known as morwongs. It is endemic to southern Australia.

References

  1. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Cheilodactylus". Catalog of Fishes . California Academy of Sciences . Retrieved 30 July 2021.
  2. 1 2 3 4 5 Christopher P. Burridge and Adam J. Smolenski (2004). "Molecular phylogeny of the Cheilodactylidae and Latridae (Perciformes: Cirrhitoidea) with notes on taxonomy and biogeography". Molecular Phylogenetics and Evolution. 30: 118–127. doi:10.1016/S1055-7903(03)00157-X.
  3. ↑ John E. Randall (2007). Reef and Shore Fishes of the Hawaiian Islands. ISBN   1-929054-03-3.
  4. 1 2 C. P. Burridge and R.W.G. White (2000). "Molecular phylogeny of the antitropical subgenus Goniistius (Perciformes: Cheilodactylidae: Cheilodactylus): evidence for multiple transequatorial divergences and non-monophyly". Biological Journal of the Linnean Society. 70: 435–458. doi:10.1006/bijl.1999.0413.
  5. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Cheilodactylus". Catalog of Fishes . California Academy of Sciences . Retrieved 5 July 2019.
  6. 1 2 Ludt, W.B.; Burridge, C.P. & Chakrabarty, P. (2019). "A taxonomic revision of Cheilodactylidae and Latridae (Centrarchiformes: Cirrhitoidei) using morphological and genomic characters". Zootaxa. 585 (1). doi:10.11646/zootaxa.4585.1.7.
  7. ↑ Christopher Scharpf & Kenneth J. Lazara, eds. (25 February 2021). "Order Centrarchiformes: Families Centrarchidae, Elassomatidae, Eoplosidae, Sinipercidae, Aplodactylidae, Cheilodactylidae, Chironemidae, Cirrhitidae, Latridae, Percichthydiae, Dichistitidae, Girellidae, Kuhliidae, Kyphosidae, Oplegnathidae, Terapontidae, Microcanthidae, and Scorpididae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 29 July 2021.
  8. 1 2 "Cheilodactylus pixi". Reef Life Survey. Retrieved 30 July 2021.
  9. 1 2 Froese, Rainer; Pauly, Daniel (eds.) (2021). "Cheilodactylus pixi" in FishBase . June 2021 version.
  10. ↑ "East Coast Fish-Watch Project Report August, 2005". South African Institute for Aquatic Biodiversity. Retrieved 30 July 2021.
  11. 1 2 Dennis King (2014). The Reef Guide: fishes, corals, nudibranchs & other vertebrates East & South Coasts of Southern Africa. Penguin Random House South Africa.
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