

^ 



UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



WILLIAM EMERSON RITTER 



■ AND 



CHARLES ATWOOD KOFOID 



EDITORS 



VOLUME 8 

 WITH 25 PLATES 



BERKELEY 



THE UNIVERSITY PRESS 

 191 1 



7M 



ZZS^Ar^ 



^i:\ 



