/V^' 



30 



University of California Publications in 



ZOOLOGY 



/ 2- 



VOLUME XXI 



1918-1926 



EDITORS 



CHARLES AT WOOD KOFOID 

 JOSEPH GRINNELL 



\i^ OCT 2 8 1926^, 



>. 



ZIonal w^^ 



UNIVERSITY OF CALIFORNIA PRESS 

 BERKELEY, CALIFORNIA 



