Full checklist, with images and information for many species.

Checklist of crocodilians, tuatara, and turtles of the world: A web version of the long out-of-print edition originally published by the Association of Systematics Collections in 1989.

An outstanding guide to Tasmania's reptiles, from the Tasmanian Parks and Wildlife Service.

Small images of snakes, crocodilians, and lizards by Adrian Warren.

All about Canada's snakes, lizards, and turtles.

Information and photos of the 4 species of turtles, 4 lizards, and 8 snakes in Hiroshima Prefecture, Japan.

Personal collection of snake and lizard photographs taken in south Florida, Oaxaca, and elsewhere.

Outline of the taxonomy of turtles, snakes and lizards, alligators and crocodiles, with information on selected subgroups and species.

Short articles on the biology of reptiles.

An information resource on reptile taxonomy with a focus on the species level.