Plethodon elongatus. Photo © Gary Nafis, California Reptiles & Amphibians
Plethodon elongatus habitat, Del Norte Co., Calif. Photo © Gary Nafis, California Reptiles & Amphibians
Petranka, James W. Salamanders of the United States and Canada. Smithsonian Institution Press, 1998.
Stebbins, Robert C. Western Reptiles and Amphibians (third edition). Houghton Mifflin Company, 2003.
ARMI National Atlas for Amphibian Distributions (Database). United States Geological Survey. http://www.mp2-pwrc.usgs.gov/armiatlas (Accessed: 2003).
Nature Serve Explorer (Database). Nature Serve. http://www.natureserve.org/explorer/index.htm (Accessed: 2003).
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