Calico Scallop Dissected
Like other bivalves, the two valves, or shells, of the calico
scallop are secreted by the thin tissue called the mantle. These
valves are joined at the hinge by a ligament, and connected by a
cylindrical muscle. By contracting this muscle, the scallop can
open and close the two shells.
Calico scallops are hermaphroditic organisms with both male and
female reproductive organs. In the image above the "ripe" gonad
contains the orange eggs and white sperm.
Image Credit: FWC