San Marcos Salamander (Eurycea nana) •
Eurycea nana

San Marcos Salamander (Eurycea nana)

The San Marcos salamander (Eurycea nana) is a small species of aquatic, lungless salamander native to the United States, endemic to Spring Lake and a small region of the headwaters of the San Marcos River near Aquarena Springs, in Hays County, Texas. It is one to two inches long, with a slender body and external gills, and is a reddish-brown in color.

The San Marcos salamander has been federally listed as a threatened species since 1980. Due to its extremely limited geographic range, it is threatened by a number of things, but primarily from the contamination of ground water sources and heavy dependence of Central Texas cities upon the Edwards Aquifer for water.

NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

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Image credit: FWS

Detailed information
Full Name: San Marcos salamander (Eurycea nana)
Where found: Wherever found
Critical Habitat:N/A
Species Group:Amphibians
Current listing status
Status Date Listed Lead Region Where Listed
Threatened 07/14/1980 Southwest Region (Region 2) Wherever found
  • States/US Territories in which the San Marcos salamander, Wherever found is known to or is believed to occur: Texas
  • US Counties in which the San Marcos salamander, Wherever found is known to or is believed to occur: View All
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