Parachanna
| Parachanna | ||||||||||||
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African snakehead fish ( Parachanna africana ) |
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| Scientific name | ||||||||||||
| Parachanna | ||||||||||||
| Teugels & Daget , 1984 |
Parachanna is a genus of predatory fish from the snakehead fish family(Channidae). The three species of the genus occur in tropical Africa from Senegal over the river basins of Volta and Niger , the catchment area of Lake Chad , Lower Guinea to the upper and western Congo Basin and the White Nile .
features
Parachanna species have a massive, cylindrical and elongated body with long dorsal and anal fins and are 32 cm to half a meter long. They differ from the Channa snakehead fish genus , native to Asia, in the absence of lamellae on the first epibranchial, the upper branch of the first branchial arch and a hyomandibular supporting the epibranchial organ .
species
There are three recent and one extinct species:
- African snakehead fish ( Parachanna africana ) ( Steindachner , 1879); 45–48 dorsal rays , 32–35 anal rays , 73–83 lateral scales, 19–24 transverse row scales.
- Parachanna insignis ( Sauvage , 1884); 40–44 dorsal rays, 27–31 anal rays, 73–86 lateral scales, 25–33 transverse row scales.
- Dark-bellied snakehead fish ( Parachanna obscura ) ( Günther , 1861); 39–45 dorsal rays, 26–32 anal rays, 65–78 lateral scales, 19–24 transverse row scales.
- † Parachanna fayumensis Murray, 2006; Fayyum , later Eocene
literature
- Melanie Stiassny, Guy Teugels & Carl D. Hopkins: The Fresh and Brackish Water Fishes of Lower Guinea, West-Central Africa. Volume 2, ISBN 9789074752213 .
Individual evidence
- ↑ Murray, Alison M. (2006): A New Channid (Teleostei: Channiformes) from the Eocene and Oligocene of Egypt. Journal of Paleontology 80 (6): 1172. ISSN 0022-3360 , doi : 10.1666 / 0022-3360 (2006) 80 [1172: ANCTCF] 2.0.CO; 2
Web links
- Parachanna on Fishbase.org (English)