Bearn beaked dace
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Leuciscinae
Genus: Leuciscus
Species:
L. bearnensis
Binomial name
Leuciscus bearnensis
(Blanchard, 1866)[2]
Synonyms[3]
  • Squalius bearnensis Blanchard, 1866

The Bearn beaked dace (Leuciscus bearnensis) is a putative species of cyprinid fish, recorded from several localities in the Adour drainage in France.

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

  1. 1 2 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.
  2. 1 2 Rainer Froese; Daniel Pauly, eds. (2017). "Leuciscus bearnensis (Blanchard, 1866) Bearn beaked dace". Fishbase. Retrieved 14 November 2007.
  3. ↑ "Synonyms of Leuciscus bearnensis (Blanchard, 1866)". Fishbase. Retrieved 14 November 2017.
  4. 1 2 Jörg Freyhof; Maurice Kottelat (2007). Handbook of European freshwater fishes. Maurice Kottelat (privately published). p. 205. ISBN 2839902982.


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