Carassius vulgaris and Cyprinid fish

Carassius vulgaris noun - European carp closely resembling wild goldfish.

Cyprinid fish and Carassius vulgaris are semantically related. In some cases you can use "Cyprinid fish" instead a noun phrase "Carassius vulgaris".

Cyprinid fish noun - Soft-finned mainly freshwater fishes typically having toothless jaws and cycloid scales.

Carassius vulgaris and cyprinid fish are semantically related. Sometimes you can replace phrase "Carassius vulgaris" with "Cyprinid fish", this phrases are similar.