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{{Short description|Species of ray-finned fish}}
{{Taxobox
{{Speciesbox
| name = Longfin escolar
| image = Scombrolabrax heterolepis India.jpg
| regnum = [[Animal]]ia
| status = LC
| phylum = [[Chordate|Chordata]]
| status_system = IUCN3.1
| classis = [[Actinopterygii]]
| status_ref = <ref>{{cite iucn|last=Iwamoto|first=T.|year=2015|title=Scombrolabrax heterolepis|page=e.T21132418A42691879|doi=10.2305/IUCN.UK.2015-4.RLTS.T21132418A42691879.en}}</ref>
| ordo = [[Perciformes]]
| grandparent_authority = [[Henry Weed Fowler|Fowler]], 1925
| familia = '''Scombrolabracidae'''
| genus = '''''Scombrolabrax'''''
| genus = Scombrolabrax
| parent_authority = [[Louis Roule|Roule]], 1921
| species = '''''S. heterolepis'''''
| binomial = ''Scombrolabrax heterolepis''
| species = heterolepis
| display_parents = 4
| binomial_authority = [[Louis Roule|Roule]], 1921
| authority = [[Louis Roule|Roule]], 1921
}}
}}
The '''longfin escolar''', ''Scombrolabrax heterolepis'', also known as the '''black mackerel''', is a widespread but uncommon deep sea [[fish]] that presents some difficulties for [[taxonomy]].


The '''longfin escolar''', ''Scombrolabrax heterolepis'', also known as the '''black mackerel''', is a widespread but uncommon deep sea [[ray-finned fish]] that presents some difficulties for [[Taxonomy (biology)|taxonomy]].
It is placed in its own family '''Scombrolabracidae''', but the family's placement in the [[suborder]]s of [[Perciformes]] has included [[Scombroidei]], [[Percoidei]], and [[Trichiuiroidei]], while some authors place it in its own suborder '''Scombrolabracoidei'''.


It is placed in its own family '''Scombrolabracidae''', but the family's placement in the [[suborder]]s of [[Perciformes]] has included [[Scombroidei]], [[Percoidei]], and [[Trichiuroidei]], while some authors place it in its own suborder '''Scombrolabracoidei''' and even in its own order the '''Scombrolabraciformes'''.<ref name = Nelson5>{{cite web | url = https://81a86d48-a-62cb3a1a-s-sites.googlegroups.com/site/fotw5th/home/FotW5Classification.pdf?attachauth=ANoY7crnPmFXqnJpmRlpzLSdqx8GmsCmFXNBj8fAYuPuhFBvCfHo4TahH7eM_yruTzHI27nZRRWWJPRR7U9HopPBRlQK8iW_73EG6FVke6aUjl20fgZXiChDnl-xqMl4L2I-wHwV7D4qcPAQI1vSV6YfFYAm5qb7t5w0rJ_ierkZ91ezIvpQ_5f0kSbFiUx-YYGXP1US1GbwSf-G7sRx4XEikm73VqVA0idVnlkaFjzI53bkuIQY0OQ%3D&attredirects=0 | title = Classification of fishes from Fishes of the World 5th Edition | author1 = Nelson, JS | author2 = Grande, TC | author3 = Wilson, MVH | name-list-style = amp | year = 2016 | access-date = 10 May 2018}}</ref>
The fish bears some resemblance to members of [[Gempylidae]], but has protrusible [[premaxilla]], serrated [[opercle]] and [[preopercle]], and a spur on the lowest principal caudal ray, all of which are characteristic of [[percoid]]s. Its color varies from black to dark brown. This fish is known to grow to 30 cm in length. The body is covered in soft scales which easily slough off when handled. The eyes are large and there is usually a single pair of elongated teeth in the middle of the top jaw.


The fish bears some resemblance to members of [[Gempylidae]], but has protrusible [[premaxilla]]e, serrated [[opercle]]s and [[preopercle]]s, and a spur on the lowest principal caudal ray, all of which are characteristic of [[Perciformes|percoid]]s. Its color varies from black to dark brown. This fish is known to grow to 30&nbsp;cm in length. The body is covered in soft scales which easily slough off when handled. The eyes are large with usually a single pair of elongated teeth in the middle of the top jaw.
The longfin escolar is unique among fishes for having several of its [[vertebra]]e hollowed out and filled by evaginations of the [[gas bladder]]. It is most often encountered as a bycatch species in pelagic longline fisheries.

The longfin escolar is unique among fishes for having several of its [[vertebra]]e hollowed out and filled by [[evagination]]s of the [[gas bladder]]. It is most often encountered as a bycatch species in pelagic longline fisheries.


==References==
==References==
{{Reflist}}
* {{ITIS |id=172366 |taxon=Scombrolabrax heterolepis |accessdate=18 April 2006}}
* {{ITIS |id=172366 |taxon=Scombrolabrax heterolepis |accessdate=18 April 2006}}
* {{FishBase family | family = Scombrolabracidae | month = January | year = 2006}}
* {{FishBase family | family = Scombrolabracidae | month = January | year = 2006}}
* {{FishBase species | genus = Scombrolabrax | species = heterolepis | month = January | year = 2006}}
* {{FishBase | genus = Scombrolabrax | species = heterolepis | month = January | year = 2006}}
* [[J. S. Nelson]], ''[[Fishes of the World]]''.
* [[J. S. Nelson]], ''[[Fishes of the World]]''.


{{Taxonbar|from=Q1754834}}
[[Category:Scombrolabracidae]]

[[Category:Animals described in 1921]]
[[Category:Scombriformes]]
[[Category:Fish described in 1921]]


{{Scombroidei-stub}}

Latest revision as of 19:14, 10 November 2024

Longfin escolar
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scombriformes
Suborder: Scombroidei
Family: Scombrolabracidae
Fowler, 1925
Genus: Scombrolabrax
Roule, 1921
Species:
S. heterolepis
Binomial name
Scombrolabrax heterolepis
Roule, 1921

The longfin escolar, Scombrolabrax heterolepis, also known as the black mackerel, is a widespread but uncommon deep sea ray-finned fish that presents some difficulties for taxonomy.

It is placed in its own family Scombrolabracidae, but the family's placement in the suborders of Perciformes has included Scombroidei, Percoidei, and Trichiuroidei, while some authors place it in its own suborder Scombrolabracoidei and even in its own order the Scombrolabraciformes.[2]

The fish bears some resemblance to members of Gempylidae, but has protrusible premaxillae, serrated opercles and preopercles, and a spur on the lowest principal caudal ray, all of which are characteristic of percoids. Its color varies from black to dark brown. This fish is known to grow to 30 cm in length. The body is covered in soft scales which easily slough off when handled. The eyes are large with usually a single pair of elongated teeth in the middle of the top jaw.

The longfin escolar is unique among fishes for having several of its vertebrae hollowed out and filled by evaginations of the gas bladder. It is most often encountered as a bycatch species in pelagic longline fisheries.

References

[edit]
  1. ^ Iwamoto, T. (2015). "Scombrolabrax heterolepis". IUCN Red List of Threatened Species. 2015: e.T21132418A42691879. doi:10.2305/IUCN.UK.2015-4.RLTS.T21132418A42691879.en.
  2. ^ Nelson, JS; Grande, TC & Wilson, MVH (2016). "Classification of fishes from Fishes of the World 5th Edition" (PDF). Retrieved 10 May 2018.