It lists the names of frogs, salamanders and other amphibians, which scientists first described each species and what year, and the animal's known range.
The American Museum of Natural History hosts Amphibian Species of the World, which is updated by herpetologist Darrel Frost.
The Association of Systematics Collections (ASC) started this project in 1978 because the Convention on Trade in Endangered Species of Fauna and Flora (CITES) needed a database for animals.
The League and American Museum of Natural History put Darrel Frost in charge of the project.
The project's own page notes that there are ten times as many amphibian species known to science today than were known in the mid-1980s.