| Longfin smooth-head | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Alepocephaliformes |
| Family: | Alepocephalidae |
| Genus: | Conocara |
| Species: |
C. macropterum
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| Binomial name | |
| Conocara macropterum (Vaillant, 1888) | |
| Synonyms[2] | |
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The longfin smooth-head (Conocara macropterum) is a species of fish in the family Alepocephalidae.[3][4][5]
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]
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]
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]Adetritivore, 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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| Conocara macropterum |
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