Hō'mo-cēr'cal, a.

adjective

a. [Gr. ὁμός, common, and κέρκος, tail.] (Ichth.) Having the tail symmetrical, the vertebral column terminating at its commencement;—opposed to heterocercal.

Agassiz.

A diagram of a homocercal fish tail.
Homocercal (tail of a her-ring).