DESCRIPTION: The Comal Springs riffle beetle is an aquatic, surface-dwelling species of about two millimeters in length, with females slightly larger than males. It is reddish brown in color and has ...
The Peck's cave amphipod, along with its endangered fellows the Comal Springs dryopid and riffle beetles, once survived a drought that stopped the flow of Comal Springs from June 13 through November 3 ...