49. scELOpoRus. 229 



Var. thayeri. 



Sceloporus thayerii, Baird .§• Gii: Proc. Ac. Philad. ]8o2, p. 127. 

 uudulatus thayerii, Cope, Check-List N. Am. liept. p. 49. 



'• Colour yellowish-green above, with two longitudinal bands of 

 brown or black, and two yellow ones, on each side ; sometimes, 

 instead of bands, a series of small patches of the same colour is 

 observed ; the black patches also form transverse and undulating 

 narrow bands. The beUy is uniform yellow. The male has on 

 each side an elongated patch of blue, with a narrow band of black 

 along the abdominal margin ; under the throat there is a median 

 black patch limiting on each side another blue spot." 



Gulf of Mexico to Sonora. 



Var. bocourtii. 



Sceloporus biseriatus {non Hallow.), Bocourt, I. c. p. 197, pi. xviii. bis. 



%• 10. 



• smaragdiuus {;non Bocourt), Cope, in JJlieder^s Rep. Explor. 



W. lOOth Mer. v. p. 572, pi. xxiv. lig. 2. 



uudulatus smaragdinus, Cope, Proc. Am. Philos. Soc. xxii. 



1885, p. 399. 



Scales of the auricular denticulation usually distinctly larger than 

 those preceding. Thirty-six to forty-three transverse series of 

 dorsal scales. Olive or brownish above, with four longitudinal 

 sei'ies of dark brown spots : the male's lower surfaces sometimes 

 blackish, with the exception of the throat and the sides of the belly, 

 which are blue ; throat and sides of the belly constantly blue or 

 blue-green in the female and yomig, a mode of coloration which, 

 in other forms, is restricted to the male sex. 



From snout to vent S3 millims. 



Western North America. 



a-e. 5 <fc yg. Monterey, California. 



f-(j. c?. Mt. ^Yhitney, Cahfornia. Smithsonian Institution [P.]. 



h. 2- California. Smithsonian Institution T.]. 



i. c? . Santa Cruz. Mr. Forrer [C.]. 



k.^. ? 



Sceloporus biseriatus, Hallow. Rep. U.S. Explor. Surv. R. R. x. 

 part iv. 1859, p. 6, pis. vi. fig. 2, & viii. ; Cope, Proc. Am. Philos. 

 Soc. xxii. 1885, p. 395. — Is perhaps likewise a variety of S. nndu- 

 latu.f, characterized i3y the much smaller lateral scales. 



California. 



12. Sceloporus consobrinus. 



Seek 



P- 



3Io7ifa) 



Mer. . . ^.. -. - , - ., -, - -. ,,. ^ 



tristichus, Cope, in Wheeler's Pep. JS.iplor. W. of lOOfh Mer. v. 



p. 571. 

 — garmani, Boideng. Proc. Zool. Soc. 1882, p. 7<'il. pi. hi. 



