Monotaxis heterodon

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Monotaxis heterodon
Redfin bream (Monotaxis heterodon) (32168521307).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Spariformes
Family: Lethrinidae
Genus: Monotaxis
Species:
M. heterodon
Binomial name
Monotaxis heterodon
(Bleeker, 1854)
Synonyms [2]
  • Pagrus heterodonBleeker, 1854

Monotaxis heterodon, the redfin emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This fish is found in the Indian and Western Pacific Oceans.

Contents

Taxonomy

Monotaxis heterodon was first formally described as Pagrus heterodon in 1854 by the Dutch physician, herpetologist and ichthyologist Pieter Bleeker with its type locality given as Halmahera in Indonesia. [3] This taxon was regarded as a synonym of Monotaxis grandoculis but is now considered to be a valid species. [4] Some authors place the genus Monotaxis in the subfamily Monotaxinae but the 5th edition of Fishes of the World does not recognise the subfamilies traditionally accepted within the family Lethrinidae as valid. The family Lethrinidae is classified by the 5th edition of Fishes of the World as belonging to the order Spariformes. [5]

Etymology

Monotaxis heterodon has the specific name heterodon which means "different teeth" which was an allusion to the single row of molar teeth compared to the 2 or 3 rows of Pagrus , the genus Bleeker placed it in. [6]

Description

Monotaxis heterodon differs from M. grandoculis, with which it used to be considered synonymous, by having 18 rather than 19 transverse scale rows on the cheek. This species also has thin, vertical white bars along the upper body and the juveniles differ in having no vertical bar through the eye and no black blotches. [4] It is an overall sovery greyish colour on the body, broken by the thin white vertical bars along the back, these are only one or two scale rows wide (3-4 on M. grandocularis). There is a black blotch on the axil, of the pectoral fin, the lips are brownish to reddish and the fins are tinged with yellowish to reddish. [7]

Distribution and habitat

Monotaxis heterodon occurs in the Indian and Pacific Oceans. In the Indian Ocean it occurs at the Seychelles, Maldives and Sri lanka, as well as Christmas Island and the Cocos (Keeling) Islands. It is found throughout the islands of Indonesia east into the Pacific Ocean where it occurs east to Fiji, south to the Great Barrier Reef, Lord Howe Island and New Caledonia. [1] This species is found on sheltered coral reefs down to 25 m (82 ft). [7]

Related Research Articles

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<i>Lethrinus miniatus</i> Species of fish

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<i>Monotaxis grandoculis</i> Species of fish

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

Monotaxis is a small genus of marine ray-finned fishes belonging to the family Lethrinidae, the emperors and emperor breams. The fishes in this genus are found in the Indian and western Pacific Oceans.

<i>Gnathodentex</i> Genus of fishes

Gnathodentex is a genus of marine ray-finned fish belonging to the family Lethrinidae, the emperors or emperor breams. It is a monotypic genus, containing a single species, the goldspot seabream, also known as the striped large-eye bream. This taxon has a wide distribution in Indo-West Pacific region.

<i>Gymnocranius</i> Genus of fishes

Gymnocranius is a genus of marine ray-finned fishes belonging to the family Lethrinidae, the emperors and emperor breams. These fishes are found in the Indian Ocean and the western Pacific Ocean.

<i>Lethrinus</i> Genus of fishes

Lethrinus is a genus of marine ray-finned fishes belonging to the family Lethrinidae, the emperors and emperor breams. These fishes are mostly found in the Indian and western Pacific Oceans, with a single species in the eastern Atlantic Ocean.

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<i>Lethrinus olivaceus</i> Species of fish

Lethrinus olivaceus, common name longface emperor or long-nosed emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors or emperor breams. This species has a wide Indo-Pacific distribution.

<i>Lethrinus obsoletus</i> Species of fish

Lethrinus obsoletus, the orange-striped emperor, yellow-banded emperor or yellowstripe emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors or emperor breams. This species has a wide Indo-Pacific distribution.

<i>Lethrinus harak</i> Species of fish

Lethrinus harak, the thumbprint emperorblackblotch emperor or blackspot emperor, is a species of marine ray-finned fish belonging to the Family Lethrinidae. the emperors and emperor breams. This species is found in the Indo-Pacific region.

<i>Acanthopagrus</i> Genus of fishes

Acanthopagrus is a genus of marine ray-finned fishes belonging to the family Sparidae, the sea breams and porgies. The fish in this genus are found in the Indian and western Pacific Oceans.

<i>Gymnocranius griseus</i> Species of fish

Gymnocranius griseus, the grey large-eye bream, barred large-eye bream, grey emperor, grey seabream and naked-head seabream, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This species is found in the Indian and Pacific Oceans.

<i>Parascolopsis inermis</i> Species of fish

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Parascolopsis baranesi, Baranes’s dwarf monocle bream, is a species of marine ray-finned fish belonging to the family Nemipteridae, the threadfin breams. This fish is endemic to the Gulf of Aqaba in the Western Indian Ocean.

<i>Gymnocranius grandoculis</i>

Gymnocranius grandoculis, the blue-lined large-eye bream, iodine bream, Maori sea bream or Robinson's sea bream, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emeprors and emperor breams. This fish has a wide Indo-Pacific distribution.

<i>Lethrinus crocineus</i> Species of marine fish

Lethrinus crocineus, the yellowtail emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This fish is found in the Indian Ocean.

<i>Lethrinus variegatus</i> Species of marine fish

Lethrinus variegatus, the slender emperor or variegated emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This fish has a wide Indo-Pacific distribution.

<i>Lethrinus amboinensis</i>

Lethrinus amboinensis, the Ambon emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperors and emperor breams. This species is found in the Western Pacific Ocean.

<i>Lethrinus borbonicus</i>

Lethrinus borbonicus, the snubnose emperor, is a species of marine ray-finned fish belonging to the family Lethrinidae, the emperor breams and emperors. This species is found in the Western Indian Ocean and is of some importance to commercial fisheries in that region.

References

  1. 1 2 Carpenter, K.E.; Lawrence, A. & Myers, R. (2016). "Monotaxis heterodon". IUCN Red List of Threatened Species . 2016: e.T16721443A16722455. doi: 10.2305/IUCN.UK.2016-3.RLTS.T16721443A16722455.en . Retrieved 29 November 2023.
  2. ↑ Froese, Rainer; Pauly, Daniel (eds.) (2023). "Monotaxis heterodon" in FishBase. October 2023 version.
  3. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Monotaxis". Catalog of Fishes . California Academy of Sciences . Retrieved 1 December 2023.
  4. 1 2 Kent E. Carpenter (2022). "Family Lethrinidae". In Phillip C Heemstra; Elaine Heemstra; David A Ebert; Wouter Holleman; John E Randall (eds.). Coastal Fishes of the Western Indian Ocean (PDF). Vol. 3. South African Institute for Aquatic Biodiversity. pp. 316–327. ISBN   978-1-990951-32-9.
  5. ↑ Nelson, J.S.; Grande, T.C.; Wilson, M.V.H. (2016). Fishes of the World (5th ed.). Hoboken, NJ: John Wiley & Sons. pp. 502–506. doi:10.1002/9781119174844. ISBN   978-1-118-34233-6. LCCN   2015037522. OCLC   951899884. OL   25909650M.
  6. ↑ "Order SPARIFORMES: Families LETHRINIDAE, NEMIPTERIDAE and SPARIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf. 17 October 2022. Retrieved 1 December 2023.
  7. 1 2 Bray, D.J. (2018). "Monotaxis heterodon". Fishes of Australia. Museums Victoria. Retrieved 1 December 2023.
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