Beakfish
| Beakfish | ||||||||||||
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Oplegnathus punctatus |
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| Systematics | ||||||||||||
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| Scientific name of the family | ||||||||||||
| Oplegnathidae | ||||||||||||
| Bleeker , 1853 | ||||||||||||
| Scientific name of the genus | ||||||||||||
| Oplegnathus | ||||||||||||
| Richardson , 1840 |
The oplegnathus ( Oplegnathus ), even knife opistognathidae called, are a genus of the perch relatives (Percomorphaceae). They are monogeneric in the family Oplegnathidae. Beakfish live in the Indo-Pacific , Japan , Hawaii , South Africa , the south coast of Australia and around Tasmania , the Galapagos Islands and the coast of Peru .
features
In adult beakfish, the teeth, similar to parrotfish , have grown together to form a parrot-like beak with which they can bite into their main food, mussels and sea urchins . One can easily distinguish them from the large-scaled parrotfish by their very small scales.
The dorsal fin of the beaked perch has 11 to 12 hard rays and 11 to 22 soft rays. The anal fin has three hard and 11 to 16 soft rays. They become 45 to 90 centimeters long.
species
- Oplegnathus conwayi Richardson, 1840
- Oplegnathus fasciatus (Temminck & Schlegel, 1844)
- Oplegnathus insignis (Kner, 1867)
- Oplegnathus peaolopesi Smith, 1947
- Oplegnathus punctatus (Temminck & Schlegel, 1844)
- Oplegnathus robinsoni Regan, 1916
- Oplegnathus woodwardi Waite, 1900
literature
- Joseph S. Nelson : Fishes of the World . John Wiley & Sons, 2006, ISBN 0-471-25031-7 .
See also
Web links
- Beakfish on Fishbase.org (English)