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

 List of specimens of Sceloporus magister. 



183 



TJ.S. 





Nat. 



Sex and 



Mus. 



age. 



No. 





1809G 



? 



18097 



d 



18098 



2 



18099 



? 



18100 



9 juv. 



18101 



d juv. 



18102 



2 



18103 



d 



18104 



d 



18105 



d 



18] 06 



d juv. 



18107 



d 



18108 



d 



18109 



d 



18110 



d juv. 



18111 



d juv. 



18112 



d 



18113 



d 



18114 



d 



18115 



d 



18116 



d 



18117 



d 



18118 



d 



18119 



? JUT. 



18120 



? 



18121 



? 



18122 



? 



18123 



d 



18124 



d 



18125 



d 



18126 



d 



18127 



d 



18128 



2 



18129 



9 



18130 



9 



18131 



d 



18132 



2 jtiv. 



18133 



d 



Locality. 



Pakranagat Valley, Nev. 

 do 



.do. 

 .do. 

 .do. 

 -do. 



Pahranagat Mountains, Nev 



Pahrump Valley, Nev 



Callville, Nev 



A sli Meadows, Nev , 



do 



Vegas Valley, Nev 



Indian Spring Valley. Nev . . 



do : 



Grapevine Mountains, Nev . 



Bankerville, Nev . 



St. George, Utah 



do 



Diamond Valley, 10 miles north of 

 St. George, Utah. 



do 



Panamint Mountains, Cottonwood 

 Canon, Calif. 



do 



Panamint Mountains, Willow 

 Creek, Calif. 



do 



Walker Pass, Calif 



do 



do 



Mohave, Mohave Desert, Calif 



Near Mohave, Mohave Desert, Calif. 



do 



do 



Mohave Desert, near base of Gran- 

 ite Mountains, Calif. 



Argus Kange, Shepherd Canon, 

 Calif. 



do 



Argus Range, Searl's Garden, 

 Calif. 



Owens Valley (Lone Pine), Calif .. 



do 



Columbus, Nev 



Alti- 

 tude. 



Feet. 



4,100 



5, 000 



4,800 

 4,800 



3,900 

 3,800 



4,600 

 4,000 

 4,000 

 4.000 



3,000 



Date. 



May 23 

 ...do.. .. 

 ...do .... 

 ...do .... 

 ...do .... 

 May 25 

 May 26 

 Apr. 29 

 May 4 

 Mar. 16 

 Mar. 20 

 May 1 

 May 29 

 ...do .... 

 June 8 



May 8 



May 12 



May 13 



May 16 



May 16 

 June 14 



Mav 29 



May 22 



May 17 

 July 2 

 July 1 

 ...d'o .... 

 June 26 

 ...do .... 

 ...do .... 

 Apr. 6 

 Apr. 25 



Apr. 29 



Apr. 27 

 Apr. 24 



June 11 

 June 12 

 Dec. '90 



Collector. 



Merriam 

 ...do ... 

 ...do ... 



Bailey . . 

 Merrian 

 Bailey .. 

 Merriam 

 ...do.... 

 Bailey . . . 

 Nelson . 

 Palmer . 

 Bailey . . 

 Merriam 

 Bailey . . 

 Nelson . 



Merriam 

 Bailey . . 



do... 



Merriam 



...do... 

 Nelson. . 



...do ... 

 ...do... 



... do... 

 Bailey . . 

 ....do... 

 ...do ... 

 Palmer . 

 Merriam 

 ....do ... 

 ...do ... 

 Bailey . . 



Pis her.. 



...do... 

 Stephens 



Pisher. . . 

 ...do... 

 Bailey . . 



Kemarks. 



Yucca belt. 



4,000 feet above 

 Salt Wells, 

 Mesquite Val- 

 ley. 



Lava rock. 



Do. 



4,400 feet above 

 Salt Wells. 



On rock3. 



Sceloporus graciosus B. & G. 



The size of the dorsal scales in this species is very variable, the num- 

 ber of scales in a head length varying from eleven to sixteen. Both ex- 

 tremes are represented in the present collection. In the two smallest 

 specimens the numbers are fifteen and sixteen; in a slightly larger one 

 from Mount Magruder, Nevada, there are fourteen ; in two full-grown 

 specimens from the same locality, thirteen and twelve ; one from the 

 east slope of the High Sierra west of Lone Pine, Calif, (altitude 8,000 feet), 

 has also twelve; and in a coitple from the Juniper Mountains, Nevada 

 altitude 6,700 feet), the number of scales in a head length is only eleven. 

 From this it might be supposed that the difference in the ratio between 

 the head and the dorsal scales depended upon age, but in the types of the 

 species (U. S. Nat. Mus. 2877, Great Salt Lake, Utah, Capt. Stansbury 

 coll.), which are fully as small as the smallest specimens mentioned 



