1) Fish genus 2) Genus carassius 3) Goldfish 
Carassius is a genus in the ray-finned fish family Cyprinidae. The species in this genus are commonly known as crucian carps, though this term often specifically refers to C. carassius. The most well known is the goldfish (C. auratus), which was bred from the Prussian carp (C. gibelio). They have a Eurasian distribution, apparently originating fur...
[n] - goldfish
genus Carassius noun goldfish