The term CARP COUSIN refers to two species of fish, the Dace (4 letters) and the CHUB (4 letters). The Dace is a small freshwater fish found in Europe and parts of Asia. It is a member of the carp family and is known for its delicate flavor. The CHUB is also a member of the carp family and is found in North America. It is a larger fish than the Dace and is known for its hardiness and ability to survive in a variety of habitats. Both species are popular among anglers and are often used as bait.