Crocodiles (subfamily Crocodylinae) or true crocodiles are large aquatic reptiles that live throughout the tropics in Africa, although drilos is only attested as a colloquial term for "penis". It is ascribed to Herodotus, and supposedly describes the basking habits of the Egyptian crocodile.
Fully everted penis of large adult male crocodile. The groove running down the centre conveys semen to the tip, and the two masses at the base are the muscles used to evert the penis during copulation. The male’s testes are inside the body cavity.
The male saltwater crocodile, like the American alligator, also keep its penis erect but tucked inside its body. Photograph by Joel Sartore/National Geographic Photo Ark
Nov 02, 2009 · BEWARE EXTREMELY GRAPHIC!!!! He is all male and ready to show us. My second gator of the 2009 season 10/31, 8′ 4" male.
Crocodiles typically mate underwater. The male will grasp the female — often from the side — and align their cloacas. The male will evert his penis, and insert it into the female’s cloaca.
"Genital structures and sex identification in crocodiles" Crocodile Specialist Group Newsletter, 2007. (Pics below the fold are NSFW, needless to say) Now, I know we all know what a crocodile penis …
penis of an adult Nile crocodile (Trutnau 1994); furthermore, Whitaker et al. (1980) mentioned the 3 cm wide penis of an almost adult Crocodylus palustris with 2.5 m total length, that was palpated and subsequently protruded 10 cm beyond the cloaca.
A couple of weeks ago, I posted a link to a research paper on crocodile genitalia, which included a really helpful diagram showing how the male crocs’ penis works as part of an all-purpose mating
Since crocodiles and alligators are closely related, crocodile penises probably work the same way, she said, though she and other scientists have never studied the crocodile penis.
Crocodilia Owen, 1842: Subgroups The order Crocodilia includes the true crocodiles (family Crocodylidae), the alligators and caimans The crocodilian penis is permanently erect and relies on cloacal muscles for eversion and elastic ligaments and a tendon for recoil.