Sea ravens
| Sea ravens | ||||||||||||
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Blepsias cirrhosus |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Hemitripterinae | ||||||||||||
| Gill , 1872 |
The 3 genera and 8 species of sea ravens (Hemitripterinae) live in the north-western Atlantic and in the North Pacific, mostly on the ground, also at greater depths of 200 to 400 meters. They feed on small invertebrates.
features
The head and body of the sea ravens are covered with skin protrusions and spines. Sea ravens have two dorsal fins, the first with 6-19 hard rays, the second with 11-30 soft rays. The pelvic fins have one hard and three soft rays. They have a full sideline with more than 35 open pores. There is no swim bladder . In the case of the genus Hemitripterus , the color of the same species is often different depending on the habitat. Sea crows grow up to a maximum of 70 centimeters.
Genera and species
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Blepsias
- Blepsias bilobus Cuvier , 1829 .
- Blepsias cirrhosus ( Pallas , 1811) .
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Hemitripterus
- Hemitripterus americanus ( Gmelin , 1789) .
- Hemitripterus bolini (Myers, 1934) .
- Hemitripterus villosus (Pallas, 1814) .
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Nautichthys
- Nautichthys oculofasciatus ( Girard , 1858) .
- Nautichthys pribilovius ( Jordan & Gilbert, 1898) .
- Nautichthys robustus Peden, 1970 .
literature
- Joseph S. Nelson , Terry C. Grande, Mark VH Wilson: Fishes of the World. Wiley, Hoboken, New Jersey, 2016, ISBN 978-1118342336 .
Web links
Commons : Hemitripteridae - Collection of images, videos and audio files
- Seeraben on Fishbase.org (English)