''Carassius ''is a genus in the ray-finned fish family

Cyprinidae Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest verte ...

. Most species in this genus are commonly known as crucian

carp Carp are various species of oily freshwater fish from the family Cyprinidae, a very large group of fish native to Europe and Asia. While carp is consumed in many parts of the world, they are generally considered an invasive species in parts of ...

s, though this term often specifically refers to '' C. carassius''. The most well known is the goldfish (''C. auratus''). They have a Eurasian distribution, apparently originating further to the west than the

typical carp ''Cyprinus'' is the genus of typical carps in family Cyprinidae. Most species in the genus are of East Asia origin with only the common carp (''C. carpio'') in Western Asia and Europe; this invasive species has also been Introduced species, intr ...

s (''Cyprinus''), which include the

common carp The Eurasian carp or European carp (''Cyprinus carpio''), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.Fishbase''Cyprinus carpio'' Linnaeus, 1758/ref>Arkive The ...

(''C. carpio''). Species of ''Carassius'' are not particularly close relatives of the typical carps of ''Cyprinus'', but rather form a more

basal Basal or basilar is a term meaning ''base'', ''bottom'', or ''minimum''. Science * Basal (anatomy), an anatomical term of location for features associated with the base of an organism or structure * Basal (medicine), a minimal level that is nec ...

lineage of the

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...

Cyprininae.de Graaf, Martin; Megens, Hendrik-Jan; Samallo, Johannis & Sibbing, Ferdinand A. (2007): Evolutionary origin of Lake Tana's (Ethiopia) small ''Barbus'' species: indications of rapid ecological divergence and speciation. '' Anim. Biol.'' 57(1): 39-48. (HTML abstract)

Species

* ''

Carassius auratus The goldfish (''Carassius auratus'') is a freshwater fish in the family Cyprinidae of order Cypriniformes. It is commonly kept as a pet in indoor aquariums, and is one of the most popular aquarium fish. Goldfish released into the wild have ...

'' ( Linnaeus,

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, 10th edition of ''Systema Naturae'', the sta ...

) (goldfish) ** ''Carassius auratus auratus'' ( Linnaeus,

)

* ''Carassius carassius'' ( Linnaeus,

) (crucian carp) Carassius carassius1

* ''Carassius cuvieri'' Coenraad Jacob Temminck, Temminck & Hermann Schlegel, Schlegel, 1846 (Japanese white crucian carp) * ''Carassius gibelio'' (Marcus Elieser Bloch, Bloch, 1782) (Prussian carp)

* ''Carassius langsdorfii'' Coenraad Jacob Temminck, Temminck & Hermann Schlegel, Schlegel, 1846 (Ginbuna) * ''Carassius praecipuus'' Kottelat, 2017

References

{{Taxonbar, from=Q237800 Carassius, Cyprininae Taxa named by Sven Nilsson