216 



NORTH AMERICAN FAUNA, 

 List of specimens of Crotalus ligris. 



[No. 



U.S. 



Nat. 

 Mus. 

 No. 



1SG61 

 18602 

 18063 

 1S6G4 



18665 

 18666 



18667 



1SGG8 



18669 

 18670 



18671 

 18672 



18673 

 18674 



Sox 

 and 

 age. 



a.l. 

 ad. 

 fun. 



jUv. 



ad. 

 ad. 



juv. 



ad. 



ad. 

 ad. 



ad. 

 ad. 



ad. 

 ? ad. 



Locality. 



Vegas Valley, Nev 



Vegas Wash, Nev 



Indian Spring Valley, Nev 

 Grapevine Mountains, Nev 



Slate Range, Calif 



Panamint Mountains, Willow 



Creek, Calif. 

 Panamint Mountains, Johnson 



Canon, Calif. 

 Panamint Mountains, Emigrant 



Canon, Calif. 



do 



Argus Range, Shepherd Canon, 



Calif. 



do 



Coso Valley, Maturango Springs, 



Calif. 



do 



Owens Valley, Independence 



Creek, Calif. 



Alti- 

 tude. 



Feet. 



3,100 

 5,500 



5,000 



4,600 



4,600 



6,500 



Date. 



May 1 

 May 2 

 May 29 

 June 



Apr. 21 

 May 17 



Mar. 30 



Apr. 16 



...do... 

 Apr. 29 



Apr. 27 

 May 11 



...do... 

 June 20 



( lolli'ctor. 



Merriam. . 

 Bailey .... 

 Merriam. . 

 Nelson 



Stephens . 

 Nelson 



Fisher 



Stephens . 



...do 



Fisher 



...do 



Palmer . . . 



...do 



Stephens - 



Remarks. 



3,000 feet ahove 

 Salt Wells. 



Crotalus cerastes Hallow. 



The horned rattlesnake has a record somewhat different from that 

 of the foregoing species (C. tigrls), although inhabiting, in a general 

 way, the same country. It was described much earlier, is less rare in 

 collections, and the geographical range was better known. This differ- 

 ence is probably due to the fact that it is more confined to the desert 

 plains and valleys, while G. tigris seems to take its place in the moun- 

 tains. 



The material brought home by the Death Valley Expedition adds con- 

 siderable detail to our knowledge of the geographical range of the 

 present species, and is, therefore, very valuable and interesting, for the 

 previous material although better than that of C. tigris, as intimated 

 above, was scanty and indefinite enough. Thus, if we take the Catalogue 

 of the specimens in the TJ. S. National Museum (Bull. IT. S. Nat. Mus., 

 No. 24, p. 73), we note at once that there is no specimen from the type 

 locality, which is the Mohave Desert and borders of the Mohave Eiver. 

 Dr. Merriam has now supplied this desideratum by the specimen col- 

 lected April 6, 1891 (No. 18656). We next note that a specimen (No. 

 8923) was collected by Dr. Yarrow in ' Southern Utah. 7 The locality 

 is indefinite enough and more than dubious, if for no other reason than 

 the complete absence of any reference to such a specimen in Dr. Yar- 

 row's report upon the reptiles in the fifth volume of Wheeler's Survey 

 West of the One Hundredth Meridian. Another specimen (No. 9116) is 

 said to have been collected by John Kohler in l Cottonwood Canon, 

 Nevada.' Turning to the record book we find 'Cottonwood Caiion, 

 Arizona,' and on p. 98 of the catalogue referred to we find that John 

 Kohler collected a Salvadora grahamke in 'Cottonwood Caiion, Utah.' 



