hemipenes


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hemipenes

paired, vascular, eversible sacs which open into the posterior cloaca in snakes and lizards. The two hemipenes are brought together to act as a penis and are inserted into the cloaca of the female during copulation.
References in periodicals archive ?
Male hybrids were easily identified, once captured, by the pronounced blue coloration of the ventral surface and the broad base of the tail; sex could be confirmed by using thumb-pressure to evert hemipenes.
01 gram and its sex determined by eversion of the hemipenes in males (Gregory & Larsen 1996).
Sex was determined by cloacal probing (Schaefer, 1934), dissection or, for small thawed snakes, by injecting water into the tail to evert hemipenes of males.