Cyprinodontidae

Cyprinodontidae ('toothed carps'), a family of small bony fishes in the order Physostomi, with open swim-bladders. They are allied to carps. (Cyprinidae), but the mouth bears teeth, the head and body are scaled, and there are never barbules. The family includes twenty genera and over a hundred species, widely distributed in the warm and tropical zones, both fresh-water and marine. They are in most cases viviparous, and the males are generally smaller than the females. The majority are carnivorous, but several forms are known as mnd-eaters. Cyprinodon, Fundulus, Anableps (q.v.), and Poecilia are the more important genera.