DistributionRead full entry
Range DescriptionThe range of this species extends from southwestern California in the United States (north to Dana Point, Orange County, and to near Colton, San Bernardino County), west of the crest of the Peninsular Ranges, south to southern Baja California peninsula in Mexico (Thompson et al. 1998), including the Pacific islands of Magdalena and Santa Margarita, and San Marcos and Los Coronados islands in the Gulf of California (Grismer 2002). In southern California, most populations are in Riverside and San Diego counties (Brattstrom 2000). It is absent from the interior of the Vizcano Desert in Mexico. Its elevational range extends from sea level to usually about 900 m (2,950 feet), rarely to 1,058 m (Stebbins 1985, Jennings and Hayes 1994, Grismer 1999, Brattstrom 2000). Stebbins (2003) reported the elevational range as high as perhaps 610 m (2,000 feet).