200 University of California Publications in Zoology  [Vou.17 
Type Locaurry.—Mountains of California near Fort Mohave 
[=‘‘Salado Valley,’’ on Mohave Desert: True, Proc. U. S. Nat. Mus., 
4, 1881 (1882), p. 447]. 
Synonyms.—Gopherus agassizii; Xerobates berlandiert. 
Common Names.—Agassiz’s Gopher; Western Gopher; Agassiz’s 
Tortoise; Agassiz’s Land Tortoise. 
RanGcE.—Chiefly the Mohave Desert. Reported north as far as 
Crater Summit (Van Denburgh, Oee. Papers Calif. Acad. Sci., 5, 1897, 
p- 37) and Leach Point Valley (Stejneger, N. Amer. Fauna, 7, 1893, 
p- 162), in northern San Bernardino County; west to one-half mile 
east of Mohave, Kern County, and to 3 miles south of Palmdale, Los 
Angeles County (Camp, Univ. Calf. Publ. Zool., 12, 1916, p. 513) ; 
south to Cottonwood Mountains, Riverside County (Camp, loc. cit.), 
and, possibly, as far as Fort Yuma (True, loc. cit.), Imperial County. 
Restricted to the Lower Sonoran life-zone. Inhabits, as a rule, flat 
gravelly or sandy tracts, but found also on rocky hills. (See fig. 9.) 
Family KINOSTERNIDAE 
Kinosternon sonoriense LeConte 
Arizona Mud Turtle 
OrtqinaL Descrietion.—Kinosternum sonoriense LeConte, Proce. 
Acad. Nat. Sci. Phila., 7, 1854, p. 184. 
Typp Locauiry—Tueson, Sonora [= Arizona]. 
Synonyms.—Cinosternum flavescens; Platythyra flavescens. 
Common Name.—Yellow Mud Turtle. 
Rance—Lower Colorado River. Two definite stations of oceur- 
rence: California side of the Colorado River opposite Yuma (Van 
Denburgh, Proe. Calif. Acad. Sei., ser. 4, 3, 1913, p. 396 [see also 
Cooper, in Cronise, Nat. Wealth Calif., 1868, p. 481] ) ; and Palo Verde 
(Mus. Vert. Zool.). 
Transmitted November 21, 1916. 
