Spring Pygmy Sunfish (Elassoma alabamae)

Description: 

This federally threatened species was historically known from three sites in the middle Tennessee River Drainage, but is now restricted to a single spring-fed creek system. As its common name implies, the Spring Pygmy Sunfish requires cool groundwater and has a maximum size of just over one inch. This species has a lifespan of only one year and thus is vulnerable to random changes in its environment