One of a pair of organs used by the male for grasping the female among many of the Crustacea.

One of a pair of male copulatory organs, developed on the anterior side of the ventral fins of sharks and other elasmobranchs. See Illust. of Chimæra.

the male sexual organs in sharks

Clasping organs in male insects for holding the female during copulation. Sometimes the cerci are used as claspers.

Claspers are appendages on the rear segment of the male butterfly or moth abdomen. Claspers hold onto the female's abdomen during mating.