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North American Frogs and Toads

A Guide to Distribution, Identification, and Taxonomy


This guide brings together information about frogs and toads that will allow you use a clickable map to get a species list for any county in the lower 48 United States, then provide you with identification and taxonomic information for the species. You can even play the Patuxent Frog Quiz, in which you have to guess a species from a picture, map , or call.

The site combines information from 3 sources: Geographic information comes from range maps estimated at the USGS Eastern Ecological Science Center, identification information comes from the USGS Northern Prairie Wildlife Research Center, and taxonomic information comes from the Integrated Taxonomic Information Service

Here are the options:

The Clickable Map

The Quiz