DESCRIPTION OF A NEW LIZARD (EUMECES 

 GILBERT!) FROM THE SIERRA NEVADA OF 

 CALIFORNIA. 



BY JOHN VAN DENBURGH, 

 Curator of the Department of Herpetology. 



In an interesting collection of reptiles made by Dr. 

 Charles H. Gilbert and Mr. James M. Hyde in and near 

 the Yosemite Valley is a very distinct new skink of the 

 genus Eumeces. This species is most closely related to 

 E . skiltonianus, from which it seems scarcely to differ in 

 scale characters, but exhibits a very different coloration. 

 In E . skiltonianus the light lines are persistent, the upper 

 pair are separated by two and two half longitudinal rows 

 of scales, and the head is never red. The lizard which 

 I propose to name in honor of Dr. Charles H. Gilbert 

 grows to a much larger size than is ever attained by Skil- 

 ton's Skink. 



Eumeces gilberti, new species. 



Diagnosis. — Twenty-four or twenty-six rows of scales 

 around the middle of the body; postnasal present, in 

 contact with first supralabial ; two azygos sublabials 

 (postmentals) ; subcaudals greatly enlarged ; interpa- 

 rietal larger than either frontoparietal; young with four 

 longitudinal light lines, the upper pair separated by not 

 more than two rows of scales ; adult brownish olive- 

 buff, 'without light lines, with bright red head. 



Type. — Leland Stanford Junior University Museum 

 No. 4139, Yosemite Valley, Mariposa County, Califor- 

 nia, Charles H. Gilbert and James M. Hyde, June 10-15, 

 1896. 



Description. — Body long and rounded, with long tail 

 and short legs; nasal acute, small, in contact with inter- 



I'roc. Cal. Acad. Sci., 2d Ser., Vol. VI. August 28, 1896. 



