78 BULLETIN 19 9, UNITED STATES NATIONAL MUSEUM 



3. Gular region without longitudinal dark streaks; large rounded spots on lower 



jaw and side of neck; central gular region suffused with dark brown; femoral 



pores average 19.1 catalinensis (p. 78) 



Gular region with longitudinal dark streaks, without definite rounded light 

 spots laterally, sometimes suffused with dark centrally , 4 



4. Femoral pores fewer, average 18.46 dorsalis lucasensis (p. 78) 



Femoral pores more numerous, average 21.8 carmenensis (p. 78) 



DIPSOSAURUS CARMENENSIS Van Denbnrgh 



Dipsosaurus carmenensis Van Denburgh, Occ. Pap. California Acad. Sci., No. 

 10, vol. 1, 1922, pp. 81-82. 



Type. — California Acad. Sci. No. 50504; Joseph R. Sleviii collector. 



Type locality. — Carmen Island, Baja California. 



Range. — Carmen Island and Los Coronados Islands, Baja California. 



DIPSOSAURUS CATAUNENSIS Van Denburgh 



Dipsosaurus catalinensis Van Denburgh, Occ. Pap. California Acad. Sci., No. 10, 

 vol. 1, 1922, pp. 83-84. 



Type. — California Acad. Sci. No. 50505; Joseph R. Slevin collector. 

 Type locality. — Santa Catalina Island, Baja California. 

 Range. — Known only from the type locality. 



DIPSOSAURUS DORSALIS LUCASENSIS Van Denburgh 



Dipsosaurus dorsalis lucasensis Van Denburgh, Proc. California Acad. Sci., ser. 4, 

 vol. 10, 1920, p. 33; Occ. Pap. California Acad. Sci., No. 10, 1922, vol. 1, 

 pp. 78-81. 



Type.— California Acad. Sci. No. 46090. 



Type locality. — "San Jose del Cabo, Baja California, Mexico." 

 Range. — Southern tip of Baja California, southward from Santa 

 Margarita Island; Cerralbo Island. Reported from Miraflores, San 

 Jose del Cabo, Santa Anita, Agua Caliente, Eureka, etc. 



DIPSOSAURUS DORSALIS DORSALIS (Baird and Girard) 



Crotaphytus dorsalis Baird and Girard, Proc. Acad. Nat. Sci. Philadelphia, 



vol. 6, 1852, p. 126. 

 Dipsosaurus dorsalis, Hallowell, ibid., vol. 7, 1854, p. 92. 

 Dipsosaurus dorsalis dorsalis. Van Denburgh, Proc. California Acad. Sci., ser. 4, 



vol. 10, No. 4, 1920, pp. 33-34; Occ. Pap. California Acad. Sci., No. 10, vol. 1, 



1922, pp. 73-78, pi. 2. 



Type.— U.S.'N.M. No. ?; John LeConte collector. 



Type locality. — "Desert of Colorado, Cal.," here restricted to Winter- 

 haven (=Fort Yuma), Imperial County. 



Range. — Extreme southwestern Utah and eastern California south- 

 ward into northwestern Sonora, and eastern Baja California south to 

 Magdalena Island; recorded on the latter island and on those of San 

 Luis, Angel de la Guarda, San Marcos, Monserrate, and San Jose. 

 Reported from Baja California: Volcano Lake, San Felipe Bay, 13 

 miles northwest of El Mejor, El Caj6n Canon, San Ignacio, 600 feet, 

 etc. ; Sonora: Punta Penasco. 



