''Leuciscus'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of freshwater and

brackish water Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuary ...

ray-finned fishes belonging to the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Leuciscidae Leuciscidae is a family of freshwater ray-finned fishes, formerly classified as a subfamily of the Cyprinidae, which contains the true minnows. Members of the Old World (OW) clade of minnows within this subfamily are known as European minnow ...

, which includes the daces, Eurasian minnows and related species. They are inland water fishes commonly called Eurasian daces. The genus is widespread from

Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...

Siberia Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states ...

. Species broadly distributed in Europe include the

common dace The common dace (''Leuciscus leuciscus'') is a species of freshwater and brackish water ray-finned fish from the family Leuciscidae which is native to Europe but which has been introduced to other parts of the world. It is a quarry species for co ...

''Leuciscus leuciscus'' and the ide ''L. idus''. The

European chub ''Squalius cephalus'', the common chub, European chub or simply chub, is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the daces, Eurasian minnows and related fishes. This species is found in Europe where it freq ...

s were formerly also included in ''Leuciscus'', but they are now usually separated in another genus, ''

Squalius ''Squalius'' is a genus of freshwater ray-finned fish belonging to the family (biology), family Leuciscidae, the daces, Eurasian minnows and reklated fishes. The fishies in this genus are found in Europe and Asia. Hybrid (biology), Hybridization ...

'' (e.g. the chub, ''Squalius cephalus''). The delimitation of ''Leuciscus'' and ''Squalius'' is not completely resolved; some species have been moved from one genus to the other only in recent years. The genera '' Petroleuciscus'' and ''

Telestes ''Telestes'' is a genus of freshwater ray-finned fishes belonging to the family Leuciscidae, which includes the daces, Eurasian minnows and related species. Many of the species in this genus were formerly usually included in ''Leuciscus''. Sp ...

'' have also been split off from ''Leuciscus'' recently; for the latter the same holds true as for ''Squalius'' regarding the unclear delimitations.

Species

''Leuciscus'' contains the following species: * '' Leuciscus aspius'' (

Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...

1758 Events January–March * January 1 – Swedish biologist Carl Linnaeus (Carl von Linné) publishes in Stockholm the first volume (''Animalia'') of the 10th edition of ''Systema Naturae'', the starting point of modern zoologic ...

) (asp) * '' Leuciscus baicalensis'' ( Dybowski, 1874) (Siberian dace) * '' Leuciscus bearnensis'' ( Blanchard, 1866) (Bearn beaked dace) * '' Leuciscus bergi'' Kashkarov, 1925 * '' Leuciscus burdigalensis''

Valenciennes Valenciennes (, also , , ; ; or ; ) is a communes of France, commune in the Nord (French department), Nord Departments of France, department, Hauts-de-France, France. It lies on the Scheldt () river. Although the city and region experienced ...

, 1844 (beaked dace) * '' Leuciscus chuanchicus'' ( Kessler, 1876) * '' Leuciscus danilewskii'' ( Kessler, 1877) (Danilevskii's dace) * '' Leuciscus dzungaricus'' Paepke & F. Koch, 1998 * '' Leuciscus idus'' (

) (ide) * '' Leuciscus latus'' ( Keyserling, 1861) * '' Leuciscus lehmanni'' J. F. Brandt, 1852 (Zeravshan dace) * '' Leuciscus leuciscus'' (

) (common dace) * '' Leuciscus lindbergi'' Zanin & Eremejev, 1934 * '' Leuciscus merzbacheri'' ( Zugmayer, 1912) * '' Leuciscus oxianus'' (Kessler 1877) * '' Leuciscus oxyrrhis'' ( La Blanchère, 1873) (long-snout dace) * '' Leuciscus schmidti'' ( Herzenstein, 1896) * '' Leuciscus vorax'' ( Heckel, 1843) * '' Leuciscus waleckii'' ( Dybowski, 1869) (Amur ide)

References

Leuciscinae Taxa named by Georges Cuvier {{Leuciscinae-stub