1897.] 



LIZAEDS OF THE GENTTS SCELOPOBUS. 



B. Two canthal shields. 



503 



(1) Referred by Gunther to S. salvini. 



(2) Referred by Giinther to 8. irazuensis. 



Green or olive above, dorsal scales often with a lighter central 

 spot ; series o£ blackish spots sometimes present on the back. 

 Males with a black colLir, which may be confined to the throat 

 and sides (specs, a-n, q, tu-y), or extend, continuous (specs, o, r) 

 or interrupted (specs, j), s-v), across tlie nape ; throat dark blue ; 

 breast blue or whitish, sometimes black ; belly entirely dark blue 

 or divided by a median yellowish-white, black-edged stripe. 

 Females with a black bar in front of the shoulder, which may 

 extend across the nape but not across the throat; lower parts 

 yellowish white, throat often bluish green. 



Hah. Mexico, Guatemala, and Costa Eica. Recorded by 

 Bocourt from Tehuantepec and Colima in Mexico, Solola, Totoni- 

 capam, Quezaltenengo, and the Alta Vera Paz in Guatemala. 



16. ScELOPORtrs xnrouLATUs. 



Agama undulata (Bosc), Daudin, Hist. E«pt. iii. p. 384 (1802) ; 

 Harlan, Med. Phys. Ees. p. 140 (1835). 



Lacerta liyadnthina, Green, Journ. Ac. Philad. i. 1818, p. 349. 



Lacerta fasciata, Green, 1. c. 



Uromastyx imdulatus, Merrem, Tent. p. 57 (1820). 



Tropidolepis undulatus, Gray, Griff. A. K. ix. Syn. p. 43 (1831) ; 

 Dum. & Bibr. Erp. Gen. iv. p. 298 (1837) ; Holbr. N. Am. Herp. 

 ii. p. 73, pi. ix. (1842) ; Gray, Cat. Liz. p. 208 (1845). 



Sceloporits umhdatus, Fitzing. Syst. Eept. p. 75 (1843) ; Girard, 

 U.S. Explor. Exped., Herp. p. 379, pi. xix. figs. 15-21 (1858) ; 

 Bocourt, ]\Iiss. Sc. Mex., Eept. p. 195, pi. xviii. bis, fig. 11 (1874) ; 

 Cope, Proc. Amer. Philos. Soc. xxii. 1885, p. 395 ; Bouleng. Cat. 

 Liz. ii. p. 227 (1885) ; GUnth. Biol. C.-Am., Eept. p. 67 (1890) ; 

 H. Garm. Bull, Hhn. Lab. iii. 1892, p. 250 ; Hay, Batr. Eept. 

 Indiana, p. 132 (1893). 



Scelojporus thayerii, Baird & Gir. Proc. Ac. Philad. 1852, 

 p. 127. 



