596 ZOOLOGY— REPTILES AND BATRACIIIANS OF ARIZONA. 



From Southern Arizona, Mr. M. W. Ilcnslxuc. 



An account of this fine new species, appropriately dedicated to the 

 zoologist of the Explorations west of the one hundredth meridian, will be 

 found on the preceding pages. 

 19. Sceloporus gratiosus, lid. & Gir. 



Sceloporus graciosus, Bd. & On;., Proc. Acad. Nat. Sci. Phila., 1852, 09. — 7/(7., Stans. 

 Eep. Exp. Groat Salt Lake, 340, pi. 5, figs. 1-?..— Bd., P. II. R. Rep., 

 x, 1859, Gunnison's & Beckwith's Route, Reptiles, 17.— M., P. R. R. Rep., 

 x, 1859, Williamson's & Abbott's Route, Reptiles, !».— Coop. & Suokl., Nat. 

 Hist. Wash. Terr., 1800, 294.— Hayd., Trans. Am. Phil. Soe., xii, 1802, 177.— 

 Cope, Proc. Acad. Nat. Sci. Phila., 1800, 303. 



Sceloporus gracilis, Bd. & Gir., Proc. Acad. Nat. Sci. Phila., 1S52, 175.— GiR., U. S. 

 Exp. Exped., 1858,380, pi. 20, tigs. 1-0. 



Observed at Navajo Springs, near the eastern border of the Territory, 

 and along the Colorado Chiquito River in sandy situations. 



Like the last, the present species is a wide ranging one, having been 

 obtained by Dr. Suckley at The Dalles of the Columbia, or at Steilacoom. 

 This gentleman found it living in the crevices of basaltic rocks, and notices 

 variations in color, according to the situation frequented, like those below 

 mentioned in the case of Uta symmetrica. 

 2(». LKa gratiosa, (Hallow.) Bd. 



Urosaurus gratiosus, Hallow., Proc. Acad. Nat. Sci. Phila., vii, 1854, 02. — Id., P. R. 



R. Rep., x, 1850, Williamson's Route, Reptiles, 4. 

 Uta gmciosa, Bd., U. S. & Mex. Bound. Surv., ii, pt. ii, 1859, Reptiles, 7. — Cope, Proc. 



Acad. Nat. Sci. Phila., 1800, 310.— Id., Check-List, 187 , 48. 



In referring this species, originally described as a Urosaurus, to the 

 genus Uta, Professor Baird quotes specimens from the Colorado River, col- 

 lected by Mr. Arthur Schott. It was not observed by me. 

 21. Uta stansburiana, Bd. & Gir. 



Uta stansburiana, Bd. & Gir, Proc. Acad. Nat. Sci. Phila., vi, 1S52, 00. — lid., Stans. 

 Rep. Exp. Great Salt Lake, 345, pi. 5, figs. 4-0.— Bd., U. S. & Mex. Bound. 

 Surv., ii, pt. ii, 1850, Reptiles, 7. — Id., P. R. 11. Reptiles, x, 1859, Whipple's 

 Route, Reptiles, 37.— Cope, Check-List, 1875, 48. 



Originally described from the valley of the Great Salt Lake, where 

 specimens were secured by ('apt. Howard Stansbury, this species has since 

 been ascertained to inhabit Texas, New Mexico, and Arizona. It was 



