AUTHOR'S ABSTRACT OF THIS PAPER ISSUBD 
BY THE BIBLIOGRAPHIC SERVICE, APRIL 7 
SEXUAL ACTIVITIES OF THE SQUID LOLIGO PEALII 
(LES.) 
Il. THE SPERMATOPHORE, ITS STRUCTURE, EJACULATION AND 
FORMATION 
GILMAN A. DREW 
Marine Biological Laboratory, Woods Hole, Massachusetts 
FORTY-ONE FIGURES (SIX PLATES) 
The spermatophores of Cephalopods have been mentioned 
in zoological literature by many writers, but most of the ac- 
counts are short, incomplete, and inaccurate, so there seems to 
be no real need for reviewing the literature as a whole. 
By far the best account of the structure and ejaculation of 
spermatophores of Cephalopods I have seen is given by Emile- 
G. Racovitza, for Rossia macrosoma (’94) in a paper dealing 
with the habits and reproduction of the species. His descrip- 
tions and figures of the spermatophores are much more complete 
and accurate than those of earlier writers and there seems to be 
nothing added by later writers of very great importance. 
To follow the method by which so complicated a structure is 
formed by added secretions on the inside of a duct, it is neces- 
sary to have rather elaborate figures representing the structure 
and ejaculation of the spermatophores, so it has seemed best to 
consider the whole question of structure, ejaculation, and forma- 
’ tion together. A previous paper (Drew’11) on the sexual ac- 
tivities of the squid deals with the copulation, egg-laying, and 
fertilization, and might well follow the observations given 
in this paper as it deals with the use made of the completed 
spermatophores. 
Part of the laboratory work, which forms the basis of this 
paper, was done at the University of Maine while I was connected 
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