24. LICHANURA 633 
to or along the tail. The lower surfaces are yellowish white, 
more or less spotted or blotched with brown or gray. 
Length tosanus = = 3.70 518 695 765 860 870 
enath op, tales re 48 66 90 80 117 110 
Distribution.—The original specimens of this snake were 
collected in northern Lower California by William M. 
Gabb. I have examined a specimen taken at Ensenada, 
Lower California, on June 8, 1893. Thence the species 
ranges north through southern California and east to western 
Arizona. A dried specimen found by Mr. Slevin on Mejia 
Island, in the Gulf of California, seems to belong to this 
species. 
In Arizona, it has been secured only in the Harqua Halla 
Mountains in northwestern Maricopa County, but has been 
seen also in the Harcuver Range in northeastern Yuma 
County. 
In California, it has been collected in the Providence 
Mountains in the northeastern part of San Bernardino 
County, and in the Colorado Desert, San Diego County. 
Most of the records are from regions nearer to the coast, 
where it has been taken in Los Angeles (Mt. Wilson, Arroyo 
Seco, Sierra Madre at 1900 and 2500 feet, Eaton Canyon 
near Pasadena, San Gabriel Mountains at 1700 feet, mouth 
of San Gabriel River near Azusa, Claremont), San Bern- 
ardino (east of Victorville, Cucamonga Canyon San Gabriel 
Mountains, San Bernardino Mountains, Live Oak Canyon 
near Redlands), Riverside (Banning, Gavilan, San Jacinto, 
San Jacinto Mountains near Cabazon, Palm Canyon at 3,000 
feet, desert seven miles south of Palm Springs), and San 
Diego (San Diego, Witch Creek, Dulzura, Bonsall), coun- 
ties. 
