Ulcmoivs of the |thtscunt of (Homjmatibc ^obloonj 



AT HARVARD COLLEGE. 

 Vol. XXXI. 



REPORTS ON AN EXPLORATION OFF THE WEST COASTS OF MEXICO, 

 CENTRAL AND SOUTH AMERICA. AND OFF THE GALAPAGOS ISLANDS, 

 IN CHARGE OF ALEXANDER AGASSIZ, BY THE U. S. FISH COMMISSION 

 STEAMER "ALBATROSS," DURING 1891, LIEUT. COMMANDER Z. L. 

 TANNER, U. S. N. COMMANDING. 



XXXII. 



THE PANAMIC DEEP SEA ECHINI. 



By ALEXANDER AGASSIZ. 



ONE VOLUME TEXT, 



WITH ONE HUNDRED AND TWELVE PLATES, 



INCLUDING A CHAET OP THE ROUTE, AND 319 FIGURES IN THE TEXT. 



TEXT. 



[Published by Permission of Marshall McDonald and George M. Bowers, U. S. Commissioners 



of Fish and Fisheries.] 



CAMBRIDGE, U.S.A.: 



Printel for tljc j&ugeum. 



1904. 



