. 



iUmoirs xjf llj£ gl^ustum of CTnmijaratitr^ iobkjgi) 



AT HARVARD COLLEGE. 



Vol. XXIIL No. 2. 



i 



REPORTS ON AN EXPLORATION OFF THE WEST COASTS OF MEXICO, 

 CENTRAL AND SOUTH AMERICA, AND OFF THE GALAPAGOS LSLANDS, 

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

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

 TANNER, U. S. N., COMMANDING. 



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I: 



THE OPHIURIDiE 



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By C. F. LiJTKEN a^^d TH. MORTENSEN. 





WITH TWENTY-TWO PLATES, 



AND A CilAllT OF THE ROUTE. 







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[Published by Permission of Maksiiall McDonald and (Jeohge M. Bowers, U. S- Conimissloners 



of Pish and Fishuries.] 





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J 1. 



CAMBRIDGE, U.S.A.: 



^printclr for tijc JHuseuiiu 



November, 1899. 



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