Silver heads
| Silver heads | ||||||||||||
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Diretmus argenteus |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Diretmidae | ||||||||||||
| Gill , 1896 |
The silver heads (Diretmidae) (Greek, “di” = two, “eretmos” = oars) are a family of fish from the order Trachichthyiformes that live in the Atlantic , Indian and Pacific at depths of 0 to 2000 meters.
features
The fish are high-backed, 23 to 37 centimeters long, have large eyes and no side line . The dorsal and anal fins have no hard rays and 24 to 30 or 19 to 22 soft rays. The small pelvic fins have one hard and six soft rays. The belly line is provided with a sharp keel. The number of Branchiostegal rays is seven to eight, those of the vertebrae 20 to 32.
Systematics
There are four types in three genera:
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Diretmichthys
- Diretmichthys parini (Post & Quéro, 1981)
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Diretmoides
- Diretmoides pauciradiatus (Woods, 1973)
- Diretmoides veriginae Kotlyar, 1987
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Diretmus
- Diretmus argenteus Johnson, 1864
literature
- Joseph S. Nelson , Terry C. Grande, Mark VH Wilson: Fishes of the World. Wiley, Hoboken, New Jersey, 2016, ISBN 978-1-118-34233-6 .
Web links
Commons : Silver Heads - Collection of images, videos and audio files
- Silver heads on Fishbase.org (English)