328 



REPORT OF NATIONAL MUSEUM, 1898. 



Concerning the distribution of Uta graciosa, Stejneger in liis report 

 on the reptiles of the Death Valley Expedition, states: 



The knowu rauge of this well-named species has been considerably extended by 

 the few specimens brought home by Dr. Merriam, inasmuch as it carries it into 

 Nevada, the first record for that State. 



Uta graciosa has a very peculiar and considerably restricted distribution, for the 

 only definite localities so far recorded show it to be an inhabitant of a narrow strip 

 of country on both sides of the Colorado River, probably from its niouth up to the 

 beginning of the Great Canyon, and, as now shown, some distance up the Virgin 

 River. 



Dr. Merriam in the same publication remarks: 



This slender and agile lizard was not seen in any of the deserts of southern Cali- 

 fornia or Nevada, except in extreme eastern Nevada, where it was common at the 

 Great Bend of the Colorado; thence northward it was found in a few places iu the 

 valley of the Virgin as far north as the Mormon town of Buukerviile, a few miles 

 from the northwestern corner of Arizona. It was never seen on the open desert but 

 usually on mesquite trees and the faces of clifts, over which it moves with grace and 

 agility. 



Uta graciosa Hallowell. 



Catalogue 

 No. 



2978 



2747 



18505 



18506 



18507 

 159U2 



15947-8 

 159G2 



16801-2 



Number 

 of speci- 

 mens. 



Locality. 



California 



Colorado Desert 



IJunkerville, Nevada 



Callville, Nevada (Great 

 Bend of Colorado). 



do 



Tunia, Arizona 



Foit Yuma, Arizona 



Yuma, Arizona 



I'arker, Colorado River, 

 Indian Agency, Ari- 

 zona. 



Gila City , Yuma County, 

 Arizona. 



Bate. 



May 8, 



May 4, 



do 



From whom received. 



Dr. C. L. Hermann 

 H. B. Mulhausen . . 



Bailey 



Merriam 



.do. 



TJ. S. Fish Commission 



do 



do 



George A. Allen 



Dr. E. A. Mearns 



Nature of sjiec- 

 imeu. 



Alcoholic, 

 do. 

 do. 

 do. 



do. 

 do. 

 do. 

 do. 

 do. 



do. 



LYSOPTYCHUS Cope. 

 Lyaoptyvhus Cope, Proc. U. S. Nat. Mus., XI, 1888, p. 397. 



A loose fold across the throat formed by the conjunction of the pre- 

 humeral folds, as in Ctcnosanra, not closely folded nor bordered Avith 

 enlarged scales. Femoral i)ores; no preanal pores. No dorsal crest. 

 Tympanic disk exposed. 



This genus is intermediate between Seelojwrus and Uta. The loose 

 dermal neck-fold, like that of some of the larger genera of Iguanida% 

 is not found in the former. The tightly adherent collar of Ufa might 

 have been developed from a Sveloporus through a LysopUjchHs. 



But one si)ecies of this genus is knowu. 



