469 
L.M.B.C. MEMOIRS. 
No. XVIII. HLEDONE. 
(Tue Ocropop CUTTLEFISH.) 
BY 
ANNIE ISGROVE, M.Sc. 
PREFACE. 
The greater part of the work for this Memoir has 
been done in the Zoological Research Laboratory of the 
Manchester University. I take this opportunity of 
thanking Professor Hickson and Mr. Hewitt, of that 
University, for their helpful suggestions. Dr. Hoyle, of 
the Manchester Museum, also kindly lent me much of the 
literature of the subject, and assisted me in various ways. 
My thanks are due to the Council of the Marine Biological 
' Association of Great Britain for the use of a table at the 
Plymouth Laboratory, during the Haster vacation, 1908, 
and also to Mr. Chadwick of the Port Erin Biological 
Station, for several useful notes with which he supplied 
me as to the occurrence of Kledone cirrosa in that district, 
its habits, method of capture and other details. 
HH 
