‘a 
Memoirs of the Museum of Comparative Zoologn 
AT HARVARD COLLEGE, 
Vou. XV. 
REPORTS 
ON THE 
Poew outs OF DREDGING, 
UNDER THE DIRECTION OF 
iet POURTA LIES, 
DURING THE YEARS 1868—1870, 
AND OF 
ALEXANDER AGASSIZ, 
IN THE GULF OF MEXICO (1877-78), AND IN THE CARIBBEAN SEA (1878-79), 
IN THE 
U.S. COAST SURVEY STEAMER “BLAKE,” 
Lievt.-Com. C. D. Siespege, U.S.N., anp Commanper J. R. Bartiert, U.S.N., Commanpine. 
XXXI. 
Report on the Annelids. By E. Envers. 
(Published by permission of Bensamin Perrce, Carvite P. Parterson, and J. E. Hitcarp, 
Superintendents U. S. Coast Survey.) 
WITH SIXTY PLATES. ros 
CAMBRIDGE: 
Brinted for the fAuseum. 
OctToBER, 1887. 
: 
