64 UNIVERSITY OF COLORADO STUDIES 



Genus UTA Baird and Girard 



Uta Baird and Girard, Stansbury's Exped. Great Salt Lake, p. 344, 1852. 



Gular fold present, marked by larger scales; tail longer than the 

 body; ear openings not covered, rather large and prominent; femoral 

 pores present; occipital plate large and somewhat rounded. 



A genus of rather small lizards confined to southwestern United 

 States and northern Mexico. 



Key to the Colorado Species of Uta 



a. Five or six rows of scales in the mid-dorsal region distinctly larger than the 

 adjoining scales; the central rows of this series smaller than the edge 



series U. ornata Baird and Girard. 



aa. Scales along the mid-dorsal region very slightly if at all larger than the 

 adjoining scales; the mid-dorsal scales grading insensibly into the lateral 

 scales U. stanshuriana Baird and Girard. 



Uta ornata Baird and Girard 



Ornate Swift {Figures 5 and 6) 



Uta ornata Baird and Girard, Proc. Acad. Nat. Set. Phila., Vol. VI, p. 126, 

 1852. 



Uta ornata — Yarrow, Wheeler Survey, Vol. V, p. 568, 1875 (Twin Lakes, 

 Colo.); Cope, Kept. U.S.N.M., p. 317, 1898 (Plateau Creek near Eagalite, Colo.); 

 Cary, N. Am. Fauna, No. 33, p. 26, 191 1 (Plateau Creek, Mesa Verde, Spruce 

 Tree Ruins, Coventry, Colo.). 



Head depressed and broad; five or six rows of enlarged scales in 

 the mid-dorsal region forming a longitudinal band of scales abruptly 

 larger than the adjoining scales, the center of this band with smaller 

 scales; a row of sUghtly elevated, conical scales on each side of the 

 back near the lateral margin; other dorsal scales small and closely 

 set; ventral scales larger than the dorsal scales; length from tip of 

 snout to vent about i . 5 in the length of the tail; total length up to 

 eight inches. 



General color gray to blackish gray or brownish gray; of a more 

 or less mottled pattern with irregular black cross bands, quite distinct 

 on the sides but interrupted dorsally; a dark area on each side of the 

 neck; ventral parts whitish to greenish; throat greenish or yellowish ; 



