66 University of California Publications in Zoology — (Vou. 17 
Sceloporus occidentalis taylori, new subspecies 
Tenaya Blue-bellied Lizard 
Type.—Male, adult; no. 5947, Mus. Vert. Zool.; half way between 
Merced Lake and Sunrise Trail (Eeho Creek basin), altitude 7500 feet, 
Yosemite National Park, California; August 25, 1915; collected by 
Walter P. Taylor; orig. no. 7361. 
Diagnosis.—Size, equalling the largest Sceloporus occidentalis bi- 
seriatus ; underparts, in the male, blue throughout; belly-patches not 
separated by a lighter or darker mid-ventral line; throat evenly 
colored, heht blue to snout and lips, and lighter in tint than general 
ventral color; blue of belly not separated from throat patch by a 
hehter or darker area across gular region (young specimens excepted). 
Female more richly colored below than in bi-seriatus; lighter than 
male; belly-patches separated by a faintly lighter area; chest lehter 
than belly; one extensive throat patch as in male; blue not always 
extending to beneath hind limb. 
Color (in alcohol) —Belly alizarine blue (of Ridgway, 1912), in 
darkest males, to clear cadet blue in the lightest females; throat diva 
blue to light cadet blue; chest only slightly dusky in the darkest speci- 
mens; males with hind limbs beneath and anterior border of anus, 
greenish blue, nearly as dark as belly. Back very dark as in darkest 
bi-seriatus ; sides and some seales on back greenish; lighter and darker 
ereseentie markings on back obscure, mest so in males. Females with 
four series of small light spots down back. 
Material—Fourteen males and ten females from the higher eleva- 
tions of the Yosemite National Park at the following localities: Wash- 
burn Lake, 7640-7700 feet ; near Merced Lake, 7500 feet; Echo Creek 
basin, Merced River, 7300-7500 feet; lower McClure Fork, Merced 
River, 7800 feet; Lake Tenaya, 8100 feet; and Glen Aulin, Tuolumne 
River, 7300 feet. 
Remarks. 
A number of individuals at hand in a large series of 
S. 0. bi-seriatus from the southern Sierras in Kern and Tulare counties 
and farther north are, of all our specimens, the closest in size and 
ventral coloration to taylori; they are, however, of greenish and more 
dusky shades of blue beneath than the new form, and their status 
must be held questionable pending the acquisition of material from 
the headwaters of the Kings and San Joaquin rivers. A male speci- 
men, one of two, from the Yosemite Valley, 4000 feet altitude, seems 
