TEIID LIZARDS OF THE GENUS CNEMIDOPHORUS 101 



1906. Cncmidophonis communis hocoiirtl Gadow, Proc. Zool. Soc. London, p. 856. 



1906. Cncmidophonis communis copcl Gadow, Proc. Zool. Soc. London, \^. 346 

 (type locality, Colima tuid Oaxacii, IMexlco ; 1 cotype, " Colinia," B.M.N.H. 

 1906.7.19.5; 2 cotypes, " Manzanillo," F.M.N.H. No 2531; 1 cotypos, "San 

 Doniinjio do (Jnznian," B.M.N.II. 3S90. 10.10.71). 



1906. Cncmidophonis com)nunis ocridcntalis (part) Gadow, Proc. Zool. Soc. 

 London, p. 339 (type localities nnnicrons and listed below in connection with 

 data pertainins-' to the cotypes, northern Mexico; 1 cotype, "Lake Santa 

 Maria, northwest Chihuahua," F.M.N.H. No. 2534; 2 cotypes, " Lerdo," 

 F.M.N.H. No. 1401; 4 cotypes, " Durango," F.M.N.H. No. 3284; 2 cotypes, 

 "Durango," B.M.N.H. 1906.7.19.9-10; 11 cotypes, " Ixtlan," B.M.N.H. 

 1892. 2. S. 33-43; 5 cotypes, "Sierra de Nayarit," B.M.N.H. 1892.2.8.44-48; 

 6 cotypes. "Presidio," B.M.N.H. 1883. 4.5.22-27; 2 cotypes, " Zapotlan," 

 F.M.N.H. No. 2535 ; 8 cotypes, " Puebla," F.M.N.H. Nos. 1321-1322 ; 5 cotypes, 

 " Puebla," B.M.N.H. 190G. 7. 19. 18-22 ; 2 cotypes, " Patzcuaro," F.M.N.H. Nos. 

 1024-1025 ; 5 cotypes, "Acambaro," F.M.N.H. Nos. 1018-1019 ; 3 cotypes, " San 

 Juan del Kio," F. M. N. H. No. 1027; 6 cotypes, "Guanajuato," B.]NLN.IL 

 1898.7.19.2-7). 



1906. Cncminophonis mcxicanus tiipit-ii Gadow, Proc. Zool. Soc. London, p. 360 

 (type locality, "Oaxaca"). 



1906. Cncmidophonis mcxicanus halsas Gadow, Proc. Zool. Soc. London, ]). 

 363 (type localitj', "Basin of the Balsas River," Mexioo ; 13 cotypes, 

 " Cuernavaca," B.M.N.H. 1906.6.1.71-83; 4 cotypes. " Cuautla." B.M.N.H. 

 l!)06.7.19.27-30 : 7 cotypes, "Cuautla," F.M.N.H. Nos. 1305-1306; 3 cotypes, 

 •' Yautepec," F.M.N.H. No. 1350 ; 1 cotype, " Yautepec," B.M.N.H. 1906.7.19.23 ; 

 3 cotypes, " Jojutla," B.M.N.H. 1906.7.19.24-26 ; 4 cotypes, " Jojutla," F.M.N.H. 

 No. 1289 ; 6 cotyiies, " Puente de Ixtla," B.M.N.H. 1906.6.1.89-94 ; 7 cotypes, 

 " Puente de Ixtla," F.M.N.H. Nos. 1016, 1026 ; 1 cotype, " Iguala," B.M.N.H. 

 1906.6.1.96; 3 cotypes, "Rio Balsas," B.M.N.H. 1901.6.1.68 70; 6 cotypes, 

 " Chilpaneingo," B.M.N.H. 1906.6.1.84-88, 95). 



3921. Cncminophonis guiaris Paintek, Journ. Exp. Zool., vol. 34, p. 2S4. 



1921. Cnimedophonis gularis Paintek, Journ. Exp. Zool., vol. 34, p. 284. 



Systematic notes. — The spotted race-runner was described by Baird 

 and Girarcl in 1851^. It was said to have the appearance of sex- 

 Uneatus, differing in the " shorter body, better developed legs, smaller 

 dorsal granules, and larger marginal scales of the subgular fold." 

 All of these characters are insufficient to diagnose gtdan's^ but it is 

 sufficiently separated from its close relatives, scxlineatus and ;;€/•- 

 plexus^ by other characters. Because of their general resemblance 

 to gularis., specimens in the Sonoran region of the United States and 

 Mexico, as well as the typical form, have usually been identified as 

 gularis., but for reasons given under perplexios.^ they are here con- 

 sidered as perjjJexus. This change restricts gularis to western Texas 

 in the United States and to southern Chihuahua and Sonora in 

 Mexico. 



Within its subspecific limits gularis is highly variable and it seems 

 that the influence of the environment on the coloration and scutella- 

 tion can not be denied. In certain regions predominately spotted 

 or cross-barred patterns appear, the amount of blue in the ventral 



