HERPETO'LOGICAL COLLECTION FROM MEXICO' — SHAnSTNON 481 

 Genus SCELOPORUS Wiegmann 



SCELOPORUS SCALARIS SCALARIS Wiegmann 



Sceloporus scalaris Wiegmann, Isis von Oken, vol. 21, p. 370, 1828. 

 Sceloporus scalaris scalaris Smith, Occ. Pap. Mus. Zool. Univ. Michigan, No. 

 361, pp. 2, 3, 1937. 



U.S.N.M. No. 123582, from El Salto, Durango, collected by Ralph 

 G. Miller. 



Varies from the normal in that the specimen has the blue spot on the 

 anterior portion of the black shoulder marking instead of in the mid- 

 dle of this spot. Also the tibia is only about 85 percent of the length of 

 the head, instead of the customary 90 percent or more. There are two 

 canthals. 



SCELOPORUS SPINOSUS CAERULEOPUNCTATUS Smith 



Sceloporus spinosus caeruleopunctatus Smith, Kansas Univ. Sci. Bull., vol. 24, 

 pp. 469-473 (1936), 1938. 



U.SJST.M. No. 123706 female, from near Santa Maria Albarradas, 

 Oaxaca, collected by W. S. Miller on May 22, 1946. 



Dorsal scale rows 30 (31 or more in 90.7 percent) ; femoral pores 9-9 

 ( 10 or more in 87.4 percent) . Smith ( 1939, p. 98) points out that other 

 specimens from Oaxaca show these low counts. However, as his speci- 

 mens are from over 50 miles south of Santa Maria Albarradas, and 

 as the zone of intergradation between s. sphiosus and s. caeruleopunc- 

 tatus is near Albarradas, the low counts of Miller's specimens may 

 best be explained as evidence of intergradation with the former. 



The Mixe name for the lizard is chintete. 



Genus XENOSAURUS Peters 



XENOSAURUS GRANDIS (Gray) 



Cubina grandis Gray, Ann. Mag. Nat. Hist., ser. 2, vol. 18, p. 270, 1856. 

 Xenosaurus grandis Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 18, p. 322, 1866, 



U.S.N.M. No. 123705, from San Lucas Camotlan, Oaxaca, at 8 : 00 

 a. m., April 14, 1946. 



Miller states that the lizard lives in cracks in large rocks. During 

 the day it may be seen resting here with only the head protruding. 

 The specimen caught was in the act of shedding its skin. It was lo- 

 cated on the shady side of a rock cliff just a short way from a crevice. 

 The Mixe name is puknem. 



The living specimen, according to Miller, had an orange eye with 

 a black pupil. The head and neck were spotted with light tan spots, 

 and two light tan V-shaped marks. The body bands were likewise 

 of this light tan, although they gradually darkened to a dark tan on 

 the tail. The gular region was light salmon, and the abdomen brown 

 with black-splotched irregular bands. 



