Phylum Chordata Rank Genus Subclass Neopterygii | Scientific name Chondrostoma | |
 | ||
Lower classifications Common nase, South‑west European nase, Chondrostoma soetta, Parachondrostoma miegii, Iberochondrostoma lusitanicum | ||
Fisch des jahres 2015 die nase chondrostoma nasus
Chondrostoma (from the Ancient Greek roots χόνδρος (khondros, “lump”) + στόμα (stoma, “mouth”) = “lump-mouth”) is a genus of ray-finned fish in the family Cyprinidae. They are commonly known as nases, though this term is also used locally to denote particular species, most frequently the common nase (C. nasus). The common name refers to the protruding upper jaw of these fishes; it is derived from the German term Nase, meaning "nose."
Contents
- Fisch des jahres 2015 die nase chondrostoma nasus
- Chondrostoma nasus feeder
- Systematics
- Species
- References
Several species have a very restricted range. Some of these endemics are very rare nowadays, and at least one species is globally extinct.
It is commonly described as a native species in Slovenia rivers and canals, as for example in the Sava. By its close colours, fins and shape, it can be confused with the common roach (Rutilus rutilus).
Chondrostoma nasus feeder
Systematics
In 2007 it was determined that the presumed monophyletic group consisted of six at least partly independent lineages of Leuciscinae, meaning that the rasping feeding apparatus evolved more than once. It was proposed to split the genus in six in consequence: Achondrostoma, Chondrostoma, Iberochondrostoma, Pseudochondrostoma, Protochondrostoma and Parachondrostoma. But at least Achondrostoma and Iberochondrostoma may not be separable.
Species
There are currently 20 recognized species in this genus: