Members of the superorder Chelonia, turtle and tortoise species living in humid temperate climates include the endangered South American species Argentine tortoise (Chelonoidis chilensis), red-footed tortoise (Chelonoidis carbonaria) and yellow-footed tortoise (Chelonoidis denticulata). Although often found in tropical areas, marine turtles, such as the Pacific ridley turtle (Lepidochelys olivacea) and the green turtle (Chelonia mydas) also nest in the subtropical coasts around the world.
Like snakes, lizards are part of the order Squamata and inhabit a wide range of areas in all continents except Antarctica. Squamata species found in humid subtropical areas include the genus Liolaemus and Phymaturus, also called tree iguanas; members of the genus Physignathus, lizards known as water dragons, which inhabit Asia and Australia; and Ophisaurus or glass lizards, found in the United States.
The worm snake (Carphophis amoenus), the scarlet snake (Cemophora coccinea) and the highly endangered Eastern indigo snake (Drymarchon couperi) are some examples of members of the Colubridae family found in humid subtropical areas. The venomous Eastern coral snake (Micrurus fulvius), the African Aspidelaps and the Australian Austrelaps are part of the family Elapidae. Bothrops jararaca is a representative of the family Viperedea living in South America.
Reptiles in the order Crocodilia include crocodiles, alligators and caymans. Species living in the humid subtropical climate include common cayman (Caiman crocodilus) and Yacare cayman (Caiman yacare), reaching up to 6.5 feet in length and native to South America; the American alligator (Alligator mississippiensis), which can reach 14 feet; and the gharial (Gavialis gangeticus), which is native to India and almost extinct in the wild.