Carassius

Carassius is a genus in the ray-finned fish family Cyprinidae. Most species in this genus are commonly known as crucian carps, though that term often refers specifically to C. carassius. The most well known species is the goldfish (C. auratus). They have a Eurasian distribution, apparently originating further to the west than the typical carps (Cyprinus genus, which includes the common carp).

Carassius
Crucian carp, Carassius carassius
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Cyprinidae
Subfamily:	Cyprininae
Genus:	Carassius Jarocki, 1822[1]
Type species
Carassius carassius Linnaeus, 1758[1]
Synonyms[1]
Cyprinopsis Fitzinger, 1832 Neocarassius Castelnau, 1872

Species of Carassius genus are not closely related of the typical carps of Cyprinus genus, but rather form a more basal lineage of the subfamily Cyprininae.^[2]

Species

Carassius contains the following species:^[3]

• Carassius auratus (Linnaeus, 1758) (Goldfish)
• Carassius carassius (Linnaeus, 1758) (Crucian carp)
• Carassius cuvieri Temminck & Schlegel, 1846 (Japanese white crucian carp)
• Carassius gibelio (Bloch, 1782) (Prussian carp)
• Carassius langsdorfii Temminck & Schlegel, 1846 (Ginbuna)
• Carassius praecipuus Kottelat, 2017