UNIVERSITY OF CALIFORNIA PUBLICATIONS 
IN 
ZOOLOGY 
Vol. 17, No. 2, pp. 9-10 August 23, 1916 
A NEW BAT OF THE GENUS MYOTIS FROM 
THE HIGH SIERRA NEVADA OF 
CALIFORNIA 
BY 
HILDA WOOD GRINNELL 
(Contribution from the Museum of Vertebrate Zoology of the University of California) 
Eight species of bats were obtained in the summer of 1915 by the 
Museum collecting party working across the Sierra Nevada through 
the Yosemite region. These are found to include an apparently un- 
described race of the Yuma bat, which is herewith characterized. Of 
particular note is the fact that this bat was ascertained to occur higher 
zonally than any of the others, two specimens having been taken by 
Dr. Walter P. Taylor at the upper edge of the Hudsonian Zone ( Vogel- 
sang Lake, 10,350 feet altitude). 
Myotis yumanensis altipetens, new subspecies 
High Sierra Bat 
Type.—M ale, adult ; no. 23034, Mus. Vert. Zool. ; 7500 feet altitude, 
one mile east of Mereed Lake, Yosemite National Park, California; 
August 19, 1915; collected by J. Grinnell; original no. 3437. 
Diagnosis.—Largest race of Myotis ywmanensis occurring in Cali- 
fornia (total length 88 to 93 millimeters; greatest length of cranium 
14.2 to 15.0 millimeters) ; coloration nearest that of Myotis ywmanensis 
sociabilis. 
Material—F our specimens from the high Sierra Nevada, within the 
Yosemite National Park: two from Mereed Lake, 7500 feet (Canadian 
Zone), and two from Vogelsang Lake, 10,350 feet (Hudsonian Zone). 
