1917] Grinnell-Camp: Amphibians and Reptiles of California 175 
Aead. Sci., 5, 1897, p. 140) and Upper Santa Ana Cafion, 5500 feet 
altitude (Grinnell, Univ. Calf. Publ. Zool., 5, 1908, p. 163), in San 
Bernardino County, to San Jacinto and Santa Rosa mountains, River- 
side County (Atsatt, Univ. Calif. Publ. Zool., 12, 1913, pp. 39-40), 
and to Vallecito, in eastern San Diego County (Mus. Vert. Zool.). 
Occupies the Lower and Upper Sonoran life-zones. Inhabits washes, 
gravelly mesas, and dry mountain slopes. (See fig. 10.) 
Cnemidophorus hyperythrus beldingi (Stejneger) 
Belding Orange-throated Lizard 
Oriemwnau Description.—Verticaria beldingi Stejneger, Proc. U.S. 
Nat. Mus., 17, 1894 [1895], pp. 17-18. 
Type Locautrry.—Cerros Island, Lower California, Mexico. 
Synonyms.—Verticaria hyperythra; Cnemidophorus hyperythrus ; 
Verticaria hyperythra beldingt. 
Common Names.—Belding’s Orange-throat ; Cape Striped Lizard. 
Rance.—Foothill districts of western San Diego and Riverside 
counties. Occurs north to Reche Canon, Riverside County (Atsatt, 
Uniy. Calif. Publ. Zool., 12, 1913, p. 40) ; west to Temescal Mountains, 
Riverside County (Van Denburgh, Proe. Calif. Acad. Sei., ser. 4, 3, 
1912, p. 150), and to Escondido (Mus. Vert. Zool.) and San Diego 
(Cope, Ann. Rep. U. 8. Nat. Mus., 1898 [1900], p. 564), in San Diego 
County; east to Oak Grove, San Diego County (Van Denburgh, loc. 
cit., p. 152), and San Jacinto, Riverside County (Stejneger, loc. cit.). 
Occurs within the Lower Sonoran life-zone. Inhabits dry, sparsely 
vegetated, sandy ground, and dusty roadsides. (See fig. 10.) 
Family SCINCIDAE 
Plestiodon skiltonianum Baird and Girard 
Western Skink 
OriGINAL DeEscription.—Plestiodon Skiltonianuwm Baird and 
Girard, Proe. Acad. Nat. Sei. Phila., 6, 1852, p. 69. 
Type Locauiry.—Oregon. 
Synonyms.—Eumeces quadrilineatu[s| Hallowell, Pac. R. R. Rep., 
10, 1859, Williamson’s Rep., pt. 4, no. 1, p. 10 (types from near 
Mohave River and in San Bernardino Valley [more lkely the latter] ) ; 
Eumeces gilberti Van Denburgh, Proe. Calif. Acad. Sei., ser. 2, 6, 1896, 
