from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of a pair of intromittent organs of male squamates, usually held inverted within the body but everted for reproduction via erectile tissue.
from The Century Dictionary and Cyclopedia
- n. One of the two intromittent organs of snakes.
Better yet, another very interesting characteristic of the iguanas is that, for the sake of procreation, they possess a hemipenis or two penises (fortunate little critters!).
But one way scientists were able to differentiate V. bitatawa from the related Gray's monitor lizard was by its hemipenis, the shape of which is unique to each species, National Geographic reports.
The adult male specimen revealed distinguishing shape morphology to its double-barreled reproductive organ, or hemipenis (a feature common in many reptiles), creating a lock and key effect in that it can only fit into females of the same species.
"We call this a hemipenis, and lizards have two of them.