Panzerroppen
| Panzerroppen | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Stone picker ( Agonus cataphractus ) |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Agonidae | ||||||||||||
| Swainson , 1839 |
Panzerroppen (Agonidae) are small bony fish (Osteichthyes). They live in the coastal zones of the Arctic , the North Atlantic , the North Pacific and southern South America to depths of 1,000 meters.
features
They have a body armored with bone plates, in most cases elongated, and a maximum of 30 centimeters long. The fish have at least one, but mostly two short dorsal fins, the first with 2 to 21 hard rays, the second with 4 to 14 soft fin rays. The anal fin has 4 to 28 rays, the stunted pelvic fins one hard and two soft fin rays, the caudal fin ten to twelve. The ventral fins are throaty. A swim bladder is missing. Panzer groups have 34 to 47 vertebrae. The number of Branchiostegal rays is five to six. The scales of the larvae and pelagic fry are formed as spines. One can prove the animals fossil since the lower Eocene .
The most well-known and native species of the rock pecker ( Agonus cataphractus ) from the North and Baltic Seas belong to the armored clusters .
Systematics
The Panzergroppen are divided into eight subfamilies 25 genera and almost 60 species .
- Subfamily Hemilepidotinae , 1 genus, 6 species
- Subfamily Seeraben (Hemitripterinae), 3 genera, 8 species
- Subfamily Hypsagoninae , 3 genera, 7 species
- Subfamily Bathyagoninae , 3 genera, 9 species
- Subfamily Bothragoninae , 1 genus, 2 species
- Subfamily Anoplagoninae , 3 genera, 5 species
- Subfamily Agoninae , 6 genera, 13-15 species
- Subfamily Brachyopsinae , 6 genera, 9 species
literature
- Kurt Fiedler: Textbook of Special Zoology, Volume II, Part 2: Fish , Gustav Fischer Verlag Jena, 1991, ISBN 3-334-00339-6 .
- Joseph S. Nelson , Terry C. Grande, Mark VH Wilson: Fishes of the World. Wiley, Hoboken, New Jersey, 2016, ISBN 978-1118342336 .
- Tsutomu Kanayama: Taxonomy and Phylogeny of the Family Agonidae (Pisces: Scorpaeniformes). Memoirs of the Faculty of Fisheries, Hokkaido University, vol. 38, no. 1-2.
Web links
- Panzergroppen on Fishbase.org (English)