Mat, 1893.] REPTILES OF THE DEATH VALLEY EXPEDITION. 



105 



within tlie Larrea belt. In western Nevada it readies its northern 

 limit in the Amargosa Desert, and was not found in Oasis Valley or 

 Indian Spring Valley. In the northwest arm of Death Valley it does 

 not range northward beyond Grapevine Canon, and in Owens Valley 

 was not found much north of the lake. It is a strict vegetarian, feed- 

 ing on buds and flowers, which it devours in large quantities. No in- 

 sects were found in any of the stomachs examined ; some contained 

 beautiful boquets of the yellow blossoms of acacia, the orange mal- 

 vastrum, the rich purple Dalea, and themesquite (Prosopis juliflora); 

 others contained leaves only. — 0. H. M.] 



List of specimens of Dipsosaurus dor sails 



TJ.S. 





Nat. 



Sex and 



Mus. 



age. 



No. 





18345 



d ad. 



18346 



JUV. 



18347 



JUV. 



18348 



ad. 



18349 



JUT. 



18350 



juv. 



18351 



ad. 



18352 



ad. 



18353 



ad. 



18354 



ad. 



18355 



ad." 



18356 



ad. 



18357 



ad. 



1835S 



ad. 



18359 



JUT. 



18360 



ad. 



Locality. 



Alti- 

 tude. 



Date. 



Collector. 



Eeruarks. 



Callville, Great Bend of Colorado,Nev. 



do 



do , 



Amargosa Desert, Nev 



Amargosa River, Calif 



do 



3 miles east of Owens Lake, Calif 



Panamint Valley, Calif 



do 



Mohave Desert, Leach Point, Valley, 

 Calif. 



Borax Flat Water Station, Calif 



Mesquite Valley, Calif 



Bennett Wells, Calif 



do 



Furnace Creek, Death Valley. Calif . . . 

 Owl Holes, Death Valley, Calif 



Feet. 



4,100 

 3,300 



....do... 

 ....do... 



May 31 

 Apr. 27 

 ....do... 

 June 26 

 May 15 

 Apr. 24 

 Apr. 25 



Apr. 22 

 Apr. 13 

 Apr. 1 

 Apr. 4 

 June 21 

 Apr. 26 



Merriam 

 Bailey ... 

 ...do.... 

 Merriam 

 Bailey . . . 

 Merriam . 

 Bailey . . . 

 Nelson... 

 Bailey ... 

 Merriam 



Stephens 

 Bailey ... 



do 



...do .... 



Fisher . . . 

 Merriam 



Crotaphytus baileyi Stein. 



The great number of specimens brought home by the expedition 

 fully bear out the characters assigned by me in originally establishing 

 this species (N. Am. Fauna, No. 3, 1890, p. 103). 



When publishing the map (op. cit. PI. xiii) showing localities from 

 which specimens of G. baileyi and collaris had been examined, I was 

 unable to point out any single definite locality in California, the only 

 certain Californian specimen seen by me hailing from the 'Mohave 

 Desert.' The specimens hereafter enumerated would fill quite a gap 

 if plotted on that map. 



In spite of the fact that this species, in certain localities at least, 

 ascends the mountains as high as 5,600 feet, it does not occur anywhere 

 within the interior valley of California, nor does it pass beyond the 

 San Bernardino Range; in fact it does not seem to reach the coast any- 

 where; it is evidently an inland desert form. 



[Bailey's ring-necked lizard does not inhabit the Larrea belt of the 

 Lower Sonoran zone, but is common in suitable places in the Upper 

 Sonoran, whence it descends a short distance into the Orayia belt. 

 It lives among rocks, frequently in canons, and is commonest in the 



