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Longfin smooth-head

Species of fish From Wikipedia, the free encyclopedia

The longfin smooth-head (Conocara macropterum) is a species of fish in the family Alepocephalidae.[3][4][5]

Quick facts Conservation status, Scientific classification ...
Longfin smooth-head
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Division: Teleostei
Order: Alepocephaliformes
Family: Alepocephalidae
Genus: Conocara
Species:
C. macropterum
Binomial name
Conocara macropterum
(Vaillant, 1888)
Synonyms[2]
  • Alepocephalus macropterus (Vaillant, 1888)
  • Conocara macdonaldi (Goode & Bean, 1896)
  • Conocara macroptera (Vaillant, 1888)
  • Conocara mcdonaldi (Goode & Bean, 1896)
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Description

Drawing of Conocara macropterum.

The longfin smooth-head is pale brown to black in colour; its name derives from its anal fin, which has a long base and 35–39 finrays. Its maximum length is 34 centimetres (13 in).[6] They grow rapidly from infancy; few juveniles of intermediate size are found.[7]

Habitat

The longfin smooth-head lives in the temperate and tropical Atlantic Ocean, and in the Gulf of Mexico;[8][9][10] it is bathypelagic, living at depths of 800–2,200 m (2,600–7,200 ft), being most common at 1,200–1,800 m (3,900–5,900 ft).[6]

Behaviour

The longfin smooth-head lays large eggs, up to 6 mm (0.24 in) in diameter, and are believed to be buried in redds, similar to how the Atlantic salmon buries its eggs.[11][12] A detritivore, the longfin smooth-head is recorded to ingest sediment from the seafloor, taking up with it microfauna such as foraminiferans.[13][14]

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