168 University of California Publications in Zoology  [Vou.17 
Vert. Zool.), in Mendocino County, and to Squaw Creek, Siskiyou 
County (U. S. Nat. Mus.) ; southeast to Riverton, Eldorado County 
(Van Denburgh, loc. cit.). Supposed to intergrade on the southeast 
with G. s. webbu. Occurs also on San Miguel, Santa Rosa, and Santa 
Cruz islands (Van Denburgh, Proe. Calif. Acad. Sci., ser. 3, zool., 4, 
1905, pp. 3, 10-11, 12-13, 14). Occupies the Upper Sonoran life-zone, 
extending locally into Transition. Inhabits the chaparral. (See fig. 9.) 
Gerrhonotus scincicauda webbii Baird 
San Diego Alligator Lizard 
OrIGINAL DescripTION.—Gerrhonotus webbii Baird, Proce. Acad. 
Nat. Sci. Phila., 1858 [1859], p. 255. 
Type Locauiry.—Near San Diego, California. 
Synonyms.—Gerrhonotus scincicauda ignavus; Gerrhonotus scin- 
cicauda, part; Gerrhonotus multicarinatus, part. 
Common Names.—Many-keeled Lizard, part; Webb’s Lizard. 
RaANGE.—Southern California, chiefly west of the desert divides and 
north along the lower west slopes of the Sierra Nevada as far as 3 
miles northeast of Coulterville (3000 feet altitude), Mariposa County 
(Mus. Vert. Zool.) ; extends northwest at least to Matilija, Ventura 
County (Mus. Vert. Zool.). Easternmost stations: Jacumba, San 
Diego County (Cope, Ann. Rep. U.S. Nat. Mus., 1898 [1900], p. 525) ; 
Cabezon, Riverside County (Atsatt, Univ. Calif. Publ. Zool., 12, 1913, 
pp. 88-389) ; Swartout Canon, San Bernardino County (Van Denburgh, 
Proe. Calif. Acad. Sci., ser. 4, 3, 1912, p. 148) ; and Onyx, Kern County 
(Mus. Vert. Zool.). Occurs also on Santa Catalina Island (Van 
Denburgh, Proe. Calif. Acad. Sci., ser. 4, 4, 1914, pp. 182, 138). Oc- 
cupies the Upper and Lower Sonoran life-zones, extending locally into 
Transition. Inhabits the chaparral; also occurs about buildings. (See 
fig. 9.) 
Gerrhonotus palmeri Stejneger 
Sierran Alligator Lizard 
OrIGINAL Derscrietion.—Gerrhonotus scincicauda palmeri Stej- 
neger, N. Amer. Fauna, 7, May 31, 1893, pp. 196-197. 
Type Locauiry.—South Fork Kings River [in Fresno County], 
California. 
