Amatolacypris trevelyani
| Amatolacypris trevelyani | ||||||||||||
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Amatolacypris trevelyani , drawing from the Catalog of the fresh-water fishes of Africa in the British Museum by George Albert Boulenger |
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| Scientific name of the genus | ||||||||||||
| Amatolacypris | ||||||||||||
| Skelton, Swartz & Vreven, 2018 | ||||||||||||
| Scientific name of the species | ||||||||||||
| Amatolacypris trevelyani | ||||||||||||
| ( Günther , 1877) |
Amatolacypris trevelyani is a small South African species of fish from the carp family (Cyprinidae). It occurs in some of therivers that havetheir source in the Amathole Mountains ( Keiskamma River and Buffalo River ) in the Eastern Cape Province.
features
Amatolacypris trevelyani is small and slender, and reaches a standard length of 9.5 to 12 cm. As the only carp fish species in southern Africa, it has a silver-gray color combined with a narrow double line along the sides of the body. The scales are structured radially . The mouth is below and covered with one or two pairs of barbels. The pharyngealia are covered with three rows of cusp-shaped pharyngeal teeth . The intestine is tortuous and longer than the standard length of the fish. Adult fish of both sexes show a slight spawning rash on the head and trunk during the spawning season . The short dorsal fin stands over the pelvic fins. Their last simple fin ray is flexible and usually slightly serrated at the rear edge. It is followed by seven branched fin rays. The anal fin has five branched fin rays.
Way of life
Amatolacypris trevelyani lives in clear, rocky mountain streams and small rivers and feeds on aquatic insects, especially mayfly larvae , and terrestrial insects that have fallen into water, but also on algae and seeds. The species spawns in spring and early summer. It is threatened by released trout.
Systematics
The fish species was first described in 1877 by the German zoologist Albert Günther under the scientific name Barbus trevelyani . In 2015 the species was assigned to the genus Pseudobarbus and in early 2018 the monotypical genus Amatolacypris (after the Amathole Mountains) was introduced for the species. Within the family of carp fish (Cyprinidae), Amatolacypris trevelyani belongs to the subfamily Cyprininae and to the tribe Smiliogastrini. As with the African barbel of the genera Cheilobarbus , Namaquacypris , Pseudobarbus and Sedercypris , the chromosome set of Amatolacypris trevelyani is tetraploid .
supporting documents
- ↑ a b c d Skelton, PH, Swartz, E. & Vreven, EJ (2018): The identity of Barbus capensis Smith, 1841 and the generic status of southern African tetraploid cyprinids (Teleostei, Cyprinidae). European Journal of Taxonomy, 410: 1-29.
- ↑ a b c Amatolacypris trevelyani on Fishbase.org (English)
- ↑ Lei Yanga, Tetsuya Sado, M. Vincent Hirt, Emmanuel Pasco-Viel, M. Arunachalam, Junbing Li, Xuzhen Wang, Jörg Freyhof, Kenji Saitoh, Andrew M. Simons, Masaki Miya, Shunping He, Richard L. Mayden (2015 ): Phylogeny and Polyploidy: Resolving the Classification of Cyprinine Fishes (Teleostei: Cypriniformes). Molecular Phylogenetics and Evolution, February 2015, doi: 10.1016 / j.ympev.2015.01.014