The Black Turtle or Pacific Green Turtle is a locally common resident of the Galapagos. The Black Turtle has blackish to olive-brown carapace which is teardrop shaped, tapering towards the rear. The vertebral scutes (central plates) are roughly equal in size and are hexagonal with straight edges. The head is rounded and the beak is only slightly hooked. The sexes are alike, although females are distinctly larger than males.
Almost entirely marine, the Black Turtle comes ashore usually only to lay eggs. Egg-laying takes place from December to June, with a peak in activity during February. Egg laying usually takes place at night.