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Crucian Carps
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).
The genus may not be monophyletic, with molecular phylogenetics finding that the genus Carassiodes is nested within Carassius; that clade is in turn sister to the typical carps in the genus Cyprinus.
8 branches of this genus, most-observed first · about 7 known species
Goldfish
speciesCarassius auratus
Prussian Carp
speciesCarassius gibelio
Crucian Carp
speciesCarassius carassius
Japanese Silver Crucian Carp
speciesCarassius langsdorfii
Japanese White Crucian Carp
speciesCarassius cuvieri
Carassius buergeri
speciesCarassius buergeri
Crucian × Prussian Carp
hybridCarassius carassius × gibelio
Dwarf Crucian Carp
speciesCarassius praecipuus
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Carassius in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 58617.