
The copulatory organ of a male snake or lizard.
Found on
http://animal-world.com/encyclo/reptiles/information/reptile_glossary.php

A hemipenis (plural hemipenes) is one of a pair of intromittent organs of male squamates (snakes, lizards and worm lizards). Hemipenes are usually held inverted, within the body, and are everted for reproduction via erectile tissue, much like that in the human penis. Only one is used at a time, and evidence indicates males alternate use between co...
Found on
http://en.wikipedia.org/wiki/Hemipenis

(from the article `snake`) ...is essentially a homosexual encounter, with each male attempting to copulate with the other. In any event, copulation is achieved after a ... ...through the male`s cloaca into that of the female during copulation. Unlike the penis of turtles and crocodilians, the copulatory organ of lizards ... [2 relate...
Found on
http://www.britannica.com/eb/a-z/h/35

one of the dual copulatory organs of male lizards and snakes.
Found on
https://www.encyclo.co.uk/local/21694
No exact match found.