May,1893.J REPTILES OP THE DEATH VALLEY EXPEDITION. 



175 



Argus Range, west of Panamint Valley, and examined a number of 

 stomachs, in which he found the following plants (either flowers or 

 foliage or both): Dalca fremontii, Leptosyne bigelovii, Amsinclcia tessel- 

 lata, Lotus, Splmralcea munroana, and Ephedra viridis. — 0. H. M.] 



List of specimens of Sauromalus ater. 



U.S. 

 Nat. 

 Mus. 



Sex 

 and 



No. 



age. 



18621 



d 



18622 



d 



18623 



2 ad. 



18624 



ad. 



18625 



ad. 



18626 



ad. 



18627 



J iv. 



18629 



d 



18630 



ad. 



18631 



d 



18632 



d 



18633 



d 



18634 



d 



18635 



? 



18636 



ad. 



18637 



ad. 



18638 



ad. 



18639 



ad. 



Locality. 



Santa Clara Canon, Utah 



St. George, Utah 



do 



Pahrump "Valley, Nev _ 



Amargosa River, Calif 



Lookout, Inyo County, Calif. 



Death Valley, Furnace Creek, Calif.. 

 Panamint Mountains, Willow Creek, 

 Calif. 



do 



Argus Range, Shepherd Canon, Calif 

 do 



.do . 



.do . 



.do 



.do. 



.do 



-do 



.do 



Alti- 

 tude. 



Feet. 



3,000 



4,500 



Date. 



May 11 



May 13 



May 14 



Apr. 28 



Apr. 27 



Mar. 27 



Mar. 22 



May 19 



Apr. 21 



Apr. 29 

 ...do.... 

 ...do.... 



Apr. 26 



Apr. 23 



Apr. — 

 Apr. — 

 Apr. — 



Collector. 



Bailey . . . 

 Merriam. 

 ...do .... 

 ...do .... 

 ...do .... 

 Bailey . . . 

 Fisher . . . 

 Nelson... 



Coville 

 Fisher . 



....do .. 



....do.. 



....do.. 



....do .. 



....do.. 



....do.. 



....do.. 



....do.. 



Remarks. 



Skin. 



Uta stansburiana B. & G. 



The regions visited by the expedition falling within the known range 

 of this species one can hardly wonder at the magnificent series sent 

 home. 



With the material already at hand it should now be possible to set- 

 tle all questions as to individual and geographical variation within the 

 species. The task of handling this material, however, is too great to be 

 attempted in the present connection and must be reserved for some 

 future occasion. 



[This tiny brown- shouldered lizard is common over nearly the whole 

 of the desert region traversed by the expedition, from California to Utah 

 and Arizona and occurs also on the west slope of the Sierra Nevada, 

 as the subjoined list of localities shows. Whether the form inhabiting 

 the upper San Joaquin Valley is identical with that from the deserts 

 of the Great Basin remains to be seen. 



Uta stansburiana is common throughout the Mohave Desert, ranging 

 westward to the extreme west end of Antelope Valley and down through 

 the Canada de las Uvas to Old Fort Tejon. It ranges also over Walker 

 Pass and down into Kern Valley. It is common in Owens Valley, 

 and thence easterly in the Coso Mountains, Panamint Valley and 

 Mountains, Death Valley, the Amargosa Desert, Ash Meadows, Pah- 

 rump and Vegas Valleys, and at the Great Bend of the Colorado, 

 whence it ranges northerly in the valleys of the Virgin and Muddy to 



