With the Compliments of 



Alexander Agassiz. 



ANNUAL REPORT 



OF 



THE CURATOR 



OF Till 



MUSEUM OF COMPARATIYE ZOOLOGY 



AT HARVARD COLLEGE, 



TO THE 



PRESIDENT AND FELLOWS OF HARVARD COLLEGE, 



FOR 



1890-91. 



s 



CAMBRIDGE, U. S, A. : 

 UNIVERSITY PRESS; JOHN WILSON AND SON. 



1891. 



