Mountain yellow-legged frog

Description

The mountain yellow-legged frog or southern mountain yellow-legged frog (Rana muscosa) is a species of true frog endemic to California in the United States.It occurs in the San Jacinto Mountains,San Bernardino Mountains,and San Gabriel Mountains in Southern California and the Southern Sierra Nevada.It is a federally listed endangered species.Populations of Rana muscosa in the northern Sierra Nevada have been redescribed as a new species,Rana sierrae,the Sierra Nevada yellow-legged frog.This has been proposed as an endangered species as of 2013.The mountains separating the headwaters of the South Fork and Middle Fork of the Kings River mark the boundary between the ranges of the two species.Rana muscosa is 4 to 8.9 centimeters long.Its color and patterning are variable.It is yellowish,brownish,or olive with black and brown markings.Its species name muscosa is from the Latin meaning "mossy" or "full of moss",inspired by its coloration.It may have light orange or yellow thighs.When handled,the frog emits a defensive odor reminiscent of garlic.