1;A rUACHIAIS.S and REPTILEW, CENTKAL AMERICA AND MEXICO. 35 



Sauromalus Dumeril. 



Aicliivis (In Museum, viii, 1856,536; Euphryne Baird,Proc. Acad. Phila., 1858,253. 

 SATitoMALUS ATEU A. Dum6riI,Arch. Mu3.,t. ^aii, 1856, p. 536, pl.xxiii, fig. 3-3a; En- 

 phrijiic obi HI Baird, Proc. Acad. Phila. , 1858, p. 253 ; U. S. «fe Mcx. Bound. Surv. , 1859, 

 p.C), 1)1. xxvit ; Sauromalus atcr Bocourt, Miss. Sci. au Mex., iii, Kept., p. 149, pi. 

 xvii/;/.v. fig. 11-lla, 11&. 

 Lower California, Dmmril. * 



Uta Bd. Gird.* 



Proe. Acad. Phila., 1852, p. G9 ; Urosauriis Hallowell, Proc. Acad. Phila., 1854, 92 ; Phy- 

 matolepis Dwm. , Arch, du Mus6e, viii, 548; Bocourt, Miss. Sci. Mcxique, Rept.,p. 

 165 ; Fetrosaurus Boulenger, Catal. Liz. Brit. Mus., ii, 1885, p. 205. 

 Uta irregulakis Fischer, Abhandl. Nat-Wiss. Verein, Bremen, vii, 1881, p. 232. 



" Mexican Plateau," Fischer. 

 Uta bicarinata Dumeril ; Cope, Proc. Acad. Phil., 1864, p. 117 ; Phymatolcpis Dumeril, 

 Archiv. du Mus., 1856, p. 549, jjI. xxiii, figs. 2,2a, 2&; Bocourt, Miss. Sci. Mex., 165. 

 Batopilas, Chihuahua, 7F/?At«6'OM; Citj' of Chihuahua, Wilkinson; Guanajuato, Dii- 

 i/es; Puobla, Boucard; Tehuahtopec, Smnichrast; Matamoros Puebla, jl/isto?t Geo- 

 (jrdfica. 

 Uta aukiculata Cope, Proc. Boston Soc. Nat, Hist., 1871, 303. 



Socorro, Revillagigedo Ids., Grayson. 

 Uta lateralis Boulenger, Am. Mag. Nat. Hist., London, 1883, p. 342 ; Catal. Liz. Brit. 

 Mus., ii, 1885, p. 214. 

 Presidio W. Mexico ; Tres Marias Is., Forrer. 

 Uta nigricauda Cope, Proc. Acad. Phila., 1864, p. 176. 



Cape St. Lucas, Lower California, Xantus. 

 Uta stansburiana Bd. Gird., Proc. Acad. Phila., vi, 1852, p. t]9; Stansbury's Great 

 Salt Lake, 1852, 345, Reptiles, pi. v. 

 Cape St. Lucas, Lowei- California, Xantus. 

 Uta tiialassixa Cope, Proc. x\cad. Phila., 1863, p. 104; Fetrosaurus thalassinus Bou- 

 lenger, Catal. Liz. Brit. Mus., ii, 1885, p. 205. 

 Cape St. Lucas, Lower California, Xantus. 



Sceloporus Wiegmann. 

 Isis, 1828, p. 309 ; Tropidolepis Cuvicr, R<?gne Auim., 2d ed., 1829, t. 2, p. 38. 

 Sceloporus horridus Wiegmann, Herpetologia Mexicaua, pt. i, 1834, p. 50 ; Tropido- 

 lepldushorridus Bum. B'lhi:, Erp. Gen., iv, 18.37,306; Bocourt, Miss. Sci. Mex., p. 178, 

 pi. xviii, 8, 8a, 8& ; Sccloporous ollgoporus Cope, Proc. Acad. Phila., 1864, p. 177. 

 Colima, J. Xantus, A.Duyes; Guadalaxara, Major ; Vera Cruz, Mission Seientifique. 

 Sceloporus siniferus Cope, Proc. Anier.Philos. Soc, 1869. p. 159; Sceloporus liume- 

 ralis Bocourt, Miss. Sci. Mex., 1875, 15.206, pi. xviii, bis, figs. 3, 3a, 36. 

 Tehuantepec, Sumiclirast ; Oaxaca, SalU. 

 Sceloporus squa:\ios"US Bocourt, Miss. Sci. Mex., 1875, 212, pi. xviii, bis, 7, 7a, 7b, 7c, 

 xix, fig. 3. 

 Costa Rica, Fan Fatten; Guntemala, Jiliss. Scientif. 



Sceloporus utiformis Cope, Proc. Acad. Phila., 1864, p. 177 ; Bocourt, Miss. Sci. Mex., 

 187, p. 208, pi. xviii, bis, 6, 6a, 66. 

 Colima, J. Xantus, Duges. 

 Sceloporus chrysostictus Cope, Proc. Acad. Phila., 1866, p. 125 ; Scdojwrns cupreus 

 Bocourt, Miss. Sci. Mex., 1875. p. 210, pi. xviii, bis, 2, 2a, 26. 

 Yucatan, Schott ; Guatemala, Van Fatten ; Oaxaca, Boucard. 



* The sole character which di-stiniJiuishea Sauromalus from Vta is the short and obtuse tail. At pres- 

 ent the value of thia definition appeara doubtful, and the genera may have to bo united. 



