Hepsetus cuvieri
| Hepsetus cuvieri | ||||||||||||
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Hepsetus cuvieri |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Hepsetus cuvieri | ||||||||||||
| ( Castelnau , 1861) |
Hepsetus cuvieri is a predatory fish found in southern Africa. Its habitat ranges from the Cuanza , the Cunene , the Okavango , the Upper Zambezi and the Kafue , the southernmost part of the Kasai river system to the central and southern Congo Basin and the Luapula . The species wasdescribedas Hydrocyonoides cuvieri by the French explorer Francis de La Porte de Castelnau in 1861 , but was synonymous with Hepsetus odoe by TR Roberts in 1984. In 2011, Hepsetus cuvieri was revalidated. It wasdifferentiatedfrom Hepsetus odoe on the basis of morphological features, such as the scale formula , the color and the gill-trap rays .
features
Hepsetus cuvieri has a torpedo-shaped but laterally flattened body and is about 35 centimeters long. The head is narrow and high, the muzzle pointed, narrow and short. The back and anal fin sit far back. They are marbled, brass-colored to olive-colored or darker brown in color. The back is darker, the sides show dark brown spots, the belly is cream-colored. The adipose fin base is orange.
Of Hepsetus odoe can Hepsetus cuvieri by the smaller number of gill rakers (8-13 versus 14-21), the greater number of shed between dorsal and lateral line (vs. 101 / 2-111 / 2 71 / 2-101 / 2) and a greater number of scales can be distinguished between the adipose fin and the lateral line (61 / 2–71 / 2 vs. 41 / 2–61 / 2). The brown side stripes that Hepsetus odoe shows are replaced by brown spots on the sides of the body in Hepsetus cuvieri .
- Scale formula : SL 48–55.
literature
- TA Zengeya, E. Decru & E. Vreven (2011): Revalidation of Hepsetus cuvieri (Castelnau) (Characiformes: Hepsetidae) from the Quanza, Zambezi and southern part of the Congo ichthyofaunal provinces. Journal of Natural History, doi : 10.1080 / 00222933.2011.560724
Web links
- Hepsetus cuvieri on Fishbase.org (English)