12. SCELOPORUS 273 



in small tufts, which at the season of his visit were dry. The 

 first specimen seen was driven out of one of these tufts of 

 grass as Mr. Slevin was walking along, and was caught by 

 putting a butterfly net over another tuft into which it ran. 

 The species proved to be extremely shy and elusive. It 

 never was seen in the open, but kept in the shelter of the 

 little tufts of grass. All the specimens secured were found 

 in similar situations by separating the grass of the little 

 tufts. When after much careful search a lizard was found 

 in a bunch of grass, it was easily captured by bending down 

 the grass stems in such a way as to hold it. The lizards 

 were not found to be plentiful and much search yielded 

 only five specimens. 



55. Sceloporus graciosus graciosus (Baird & Girard) 



Sage-brush Swift 



Plate 20 



Sceloporus graciosus Baird & Girard, Proc. Acad. Nat. Sci. Phila., 

 Vol. VI, 1852, p. 69 (type locality. Valley of Great Salt Lake, 

 Utah); Baird & Girard, Stansbury's Exped. Great Salt Lake, 

 1853, p. 346, pi. V, figs. 1-3; Baird, Rep. Pac. R. R. Surv., Vol. X, 

 1859, p. 17; Hayden, Trans. Amer. Philos. Soc, Vol. XII, 1862, 

 p. 177; Cope, Proc. Acad. Nat. Sci. Phila., 1866, p. 303; Cope, 

 Ann. Rep. U. S. Geol. Surv. Terrs., 1871 (1872), p. 468; Cope, 

 Bull. U, S. Nat. Mus., No. 32, 1887, p. 36 (part); Stejneger, N. 

 Amer. Fauna, No. 3, 1890, p. iii; Stejneger, N. Amer. Fauna, 

 No. 5, 1891, p. 109; Stejneger, N. Amer. Fauna, No. 7, 1893, p. 

 183 (part); Van Denburgh, Bull. LI. S. Fish Commiss. for 1894, 

 p. 56; Van Denburgh, Occas. Papers Cal. Acad. Sci., V, 1897, 

 p. 74 (part); McLain, Critical Notes, 1899, p. 3 (part); Cope, 

 Report U. S. Nat. Mus. for 1898, 1900, p. 386 (part); Ditmars, 

 Reptile Book, 1907, p. 141 (part); Cary, N. Amer. Fauna, No. 33, 



191 1, pp. 23, 26; Stone, Proc. Acad. Nat. Sci. Phila., 1911, p, 

 228 (part); Van Denburgh, Proc. Cal. Acad. Sci., Ser. 4, Vol. 3. 



1 91 2, p. 156 (part); Taylor, Univ. Cal. Pubis. Zool. Vol. 7, No, 

 10, 1912, p. 349; Ellis & Henderson, Univ. Colorado Studies. 

 Vol. X, No. 2, 1913, p. 69; Richardson, Proc. U. S. Nat. Mus., 



