Red-backed salamander
…to the abundance of the Plethodon cincereus population. On December 17, 2024, the eastern red-backed salamander became the "official amphibian" of the District of Columbia. Behler JL, King FW (1979). The Audubon Society Field Guide to North American Reptiles and Amphibians. New York: Alfred A. Knopf. 743 pp., 657 color…