500 8. TEIID& 



Nat. Mus., Vol. 25, 1902, p. 151; STONE & REHN, Proc. Acad. Nat. 

 Sci. Phila., 1903, p. 32; STONE, Proc. Acad. Nat. Sci. Phila., 1903, 

 p. 540; BROWN, Proc. Acad. Nat. Sci. Phila., 1903, p. 548; BAILEY. 

 N. Amer. Fauna, No. 25, 1905, pp. 28, 44; GADOW, Proc. Zool, 

 Soc. London, 1906, p. 330; DITMARS, Reptile Book, 1907, p. 187, 

 pi. LV, fig. 2; STRECKER, Proc. Biol. Soc. Washington, Vol. XXI, 

 1908, pp. 73, 168; GARY, N. Amer. Fauna, No. 33, 1911, pp. 21, 27, 

 40; STRECKER, Baylor Bulletin, Vol. XVIII, No. 4, 1915, p. 24; 

 STONE, Proc. Acad. Nat. Sci. Phila., 1911, p. 230; ELLIS & HENDER- 

 SON, Univ. Colorado Studies, Vol. X, No. 2, 1913, p. 78; VAN 

 DENBURGH & SLEVIN, Proc. Cal. Acad. Sci., Ser. 4, Vol. 3, 1913, 

 p. 407; STEJNEGER & BARBOUR, Check List N. Amer. Amph. Kept. 

 1917, p. 67. 



Cnemidophorus guttatus HALLOWELL, Proc. Acad. Nat. Sci. Phila., 1854, 

 p. 192 (type locality, Texas). 



Cnemidophorus sexhneatus gularis COPE, Proc. Acad. Nat. Sci. Phila., 

 1866, p. 303; COUES, Surv. W. looth Merid., Vol. V, 1875, p. 602; 

 COPE, Bull. U. S. Nat. Mus., No. 32, 1887, p. 44; Md-AiN, Critical 

 Notes, 1899, p. 9. 



Cnemidophorus sexlineatus, YARROW, Surv. W. looth Merid., Vol. V, 

 1875, p. 557; COPE, Bull. U. S. Nat. Mus., No. i, 1875, p. 45 (part); 

 COPE, Proc. Acad. Nat. Sci. Phila., 1883, pp. n, 12; YARROW, 

 Bull. U. S. Nat. Mus., No. 24, 1883, p. 43 (part); BOULENGER, 

 Cat. Lizards Brit. Mus., Vol. II, 1885, p. 364 (part). 



Cnemidophorus sexlineatus tigris COPE, Proc. Am. Philos. Soc., 1886, p. 

 283. 



Cnemidophorus gularis gularis COPE, Proc. Acad. Nat. Sci. Phila., 1892, 

 p. 334; COPE, Trans. Amer. Philos. Soc., Vol. XVII, Pt. i, 1892, 

 p. 45, pi. XII, figs. G, H; COPE, Report U. S. Nat. Mus. for 1898, 

 1900, p. 602, fig. 1 1 8. 



Cnemidophorus gularis scalaris COPE, Amer. Naturalist, 1891 (1892), p. 

 1135; COPE, Trans. Amer. Philos. Soc., Vol. XVII, Pt. i, 1892, 

 p. 47, pi. XII, figs. I, K; COPE, Report U. S. Nat. Mus. for 1898, 

 1900, p. 605, fig. 119. 



Cnemidophorus scalaris VAN DENBURGH, Proc. Cal. Acad. Sci., Ser. 2, 

 Vol. 6, 1896, p. 343; GADOW, Proc. Zool. Soc. London, 1906, p. 

 335, %s. 68, 76. 



Description. Snout long, with nearly vertical sides. 

 Nostrils opening in large anterior nasal plates j latter in con- 

 tact on top of snout. Posterior nasal forming sutures with 



