Carassius

Carassius is a captivating genus of ray-finned fish belonging to the Cyprinidae family. Many species within this genus are known as crucian carps, with the goldfish being among the most recognized members. These fish are native to Eurasia and have a range extending further west than that of the common carp.

Despite their similarities, Carassius species are not closely related to the typical carps of the Cyprinus genus. Instead, they represent a more ancient lineage within the Cyprininae subfamily.

The Carassius genus includes several notable species:

- Carassius auratus (goldfish)

- Carassius carassius (crucian carp)

- Carassius cuvieri (Japanese white crucian carp)

- Carassius gibelio (Prussian carp)

- Carassius langsdorfii (Ginbuna)

Each of these species may have various subspecies or variations. For instance, you might encounter the Round crucian carp, Kimbuna, or the Broadfaced Prussian carp (Nagabuna), among others.

These diverse and resilient fish have captivated people for centuries, whether as pets in aquariums or as subjects of study in their natural habitats.