1906.] IN MEXICAN LIZARDS. 375 



GuLARis-Grou-p. 



C. gularis Baird & Girard, Proc. Ac. Phil. 1852, p. 128. 



=giottatus Hallowell, nee Wiegm, op. cit. 1854, p. 192. 

 C. mexicanus Peters, Monatsb. Berl. Ak. 1869, p. 62. 

 C. gularis communis Cope, Proc. Am. Phil. Soc. 1877, p. 95; 



1886, p. 283. 

 C. angusticeps Cope, ibid. 1877, p. 95. 

 ?(7. costatus Cope, ibid. 1877, p. 95. 

 C. mariarum Giinther, Biol. C.-Americ, Kept. p. 28. 

 C sexlineatus var. hocourti Blgr. Cat. Liz. ii. 1885, p. 367. 

 G. gularis scalaris Cope, Americ. Naturalist, 1891, p. 1135 ; Trans. 



Am. Phil. Soc. 1892, p. 47. 

 C. gularis se^nifasciatus Cope, Trans. Am. Phil. Soc. 1892, p. 49. 



= C. g. sei'iceus Cope, op. cit. p. 48. 

 C. septemvittafus Cope, op. cit. 1893, p. 40. 



Tessella rc'S'-Group. 



Cnemidophorus (Aoneiva) tessellatus Say, Long's Exp. Rocky M.ii. 

 1823, p. 50. 



= C gracilis Baird & Girard, Proc. Ac. N. Sc. Philad. 1852, 

 p. 128. 



= C tigris*, Baird & Girard, ibid. p. 69. 



= (7. tessellattis midtiscutahts Cope, Trans. Am. Phil. Soc. 

 1892, p. 38. 

 C. stejnegeri Van Denburgh, Proc. Cal. Ac. Sci. 1894, p. 300. 

 C. perplexus Baird & Girard, Proc. Ac. N. Sc. Phil. 1852, p. 128. 

 C. grahami Baird & Girard, ibid. 1852, p. 128. 

 C. octolineati(,s Baird & Girard, ibid. 1858, p. 255. 

 C. inornatus Baird & Girard, ibid. 1858, p. 255. 

 G. maximus Cope, ibid. 1863, p. 104. 

 G. melanostethus Cope, ibid. 1863, p. 104. 



= C. tessellatios variolosus Cope, Trans. Am. Phil. Soc. 1892, 

 p. 39. 

 G. laUalis Stejneger, Proc. U.S. Nat. Mus. 1889, p. 643. 

 G. martyris Stejneger, ibid. 1890, p. 407. 



= a3thiops Cope, Report U.S.Nat. Mus. for 1898, p. 582. 

 G. tessellatus ruhidus Cope, Trans. Am. Phil. Soc. 1892, p. 36. 



* Peters has remarked that C. tirjris B. & G. is "undoubtedly " = C sackii 

 Wiegm. Herpetol. Mexic. 1834, p. 29. I have been able to corroborate this, by 

 examination of the type-specimen in the Berlin Museum. This synonymy does 

 not apply to the three specimens collected by Sall6 at Oaxaca, determined by Bocourt 

 as C. sexlineatus var. sackii, Wiegm. 



