Gonopodium
From Wikipedia, the free encyclopedia
A gonopodium is a modified anal fin in males of certain species of live-bearing fish in the families Anablepidae and Poeciliidae. It is movable and used to impregnate females during mating.
A gonopodium is a modified anal fin in males of certain species of live-bearing fish in the families Anablepidae and Poeciliidae. It is movable and used to impregnate females during mating.