Description: A small-sized (4 - 9 cm [1.6 - 3.5 in.]), brown, grey, or green frog with a few light-edged dark spots on the dorsum. A light-colored ridge on each side of the body extends from the head to the groin, and a light-colored stripe exists on the upper jaw. The eardrum has a light spot. In this species, the spots and their light-colored edges are faint, irregular, and indistinct relative to other leopard frogs. The Relict leopard frogs breed during March through June. Egg masses are attached to submerged vegetation or laid on the bottom. Primarily nocturnal.
Diet: Aquatic and flying insects.
Habitat: Desert riparian habitats along permanent streams, springs, and water impoundments up to 760 m (2,500 ft) elevation.
Range: Endemic to eastern Clark County, Nevada, and the Virgin River. Found in isolated populations near the Virgin and Colorado rivers in Nevada and Arizona.
Special Remarks: Species of Concern.