Bearn beaked dace
The Bearn beaked dace (Leuciscus bearnensis) is a putative species of cyprinid fish, recorded from several localities in the Adour drainage in France.
| Bearn beaked dace | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Cyprinidae |
| Subfamily: | Leuciscinae |
| Genus: | Leuciscus |
| Species: | L. bearnensis |
| Binomial name | |
| Leuciscus bearnensis | |
| Synonyms[3] | |
| |
Description
The Bearn beaked dace is distinguished from other western European members of the genus Leuciscus by having a keel which runs from its nape to the origin of the dorsal fin, a projecting snout which has a rounded tip and a projecting upper jaw, the dorsal profile of head and body shows a distinct hump; the snout is 32-35% of the length of the head; and the lateral line has around 47-52 scales.[2] It also has thick, fleshy lips and a large eye, the diameter of them being approximately a fifth to a quarter of the length of the head. It grows to 280mm in standard length.[4]
Distribution
The Bearn beaked dave occurs only in the drainage basin of the Adour in south-western France[4]
Habitat and ecology
The Bearn beaked dace is found in streams, especially in sections of the streams which have clear water and current with cool, deep pools.[1]
See also
References
- Freyhof, J.; Kottelat, M. (2008). "Leuciscus bearnensis". The IUCN Red List of Threatened Species. 2008: e.T135602A4158040. doi:10.2305/IUCN.UK.2008.RLTS.T135602A4158040.en.
- Rainer Froese; Daniel Pauly, eds. (2017). "Leuciscus bearnensis (Blanchard, 1866) Bearn beaked dace". Fishbase. Retrieved 14 November 2007.
- "Synonyms of Leuciscus bearnensis (Blanchard, 1866)". Fishbase. Retrieved 14 November 2017.
- Jörg Freyhof; Maurice Kottelat (2007). Handbook of European freshwater fishes. Maurice Kottelat (privately published). p. 205. ISBN 2839902982.