1916] Camp: Spelerpes platycephalus 13 
enlarged at ends, webbed about half way to tips, inner digit rudi- 
mentary, smaller than outer on both front and hind foot; tail much 
shorter than body, cylindrical; eyes small and far apart; extended 
tongue 30-40 millimeters long; gular fold continuous with a line 
running to eye; costal folds 12. 
Color in life dark chocolate, marked evenly and thickly on back 
and sides of head and body, on limbs, feet and tail, and below chin 
with lichen-lhke gray markings, yellowish in tinge down middle of 
back, where less distinct, and bluish on sides; underparts posterior to 
gular fold uniform dark chocolate. Iris bright yellow. In alcohol 
the yellowish tints have disappeared. 
Fig. 1.—Top of head, 2 no. 5693, Mus. Vert. Zool.; note great breadth of 
head, and distance between eyes. 
Fig. 2—Side of head, 2 no. 5693, Mus. Vert. Zool.; note small nostril, rela- 
tive size of eye, position of gular fold, and lines on side of neck. 
Fig. 3.—Open mouth of ¢ no. 5694, Mus. Vert. Zool.; note tongue, unattached 
in front, character of palatine and parasphenoid teeth, and long maxillary 
teeth. 
Fig. 4.—Left fore foot, J no. 5694, Mus. Vert. Zool.; note extent of webbing. 
5 
Fig. 5—Left hind foot, ¢ no. 5694, Mus. Vert. Zool.; note extent of webbing, 
2) 
and enlarged ends of toes. All x 2}. 
Variations—The only other specimen, a male, differs somewhat 
from the type. The teeth on the sides of the upper jaw (see fig. 3) 
are abnormally long, protruding below the closed lips beneath the 
eyes, and are few in number (ten on each side) ; the body is shorter, 
the appressed limbs being separated by only one costal fold, and the 
light markings are smaller and more scattered. 
Remarks.—The two Mount Lyell salamanders were taken on the 
rocky, snow-covered north slope of Mount Lyell, in the Yosemite 
National Park, about a mile from the glacier and a little below timber 
line, here marked by a few stunted white-bark pines on the tops of 
