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THE 



VOYAGE OF H.M.S. CHALLENOEK. 



ZOOLOGY. 



REPORT on the Cephalopoda collected by H.M.S. Challenger during 

 the years 1873-76. By William Evans Hoyle, M.A. (Oxon.), 

 M.R.C.S., F.R.S.E., Naturalist on the Editorial Staff of the 



Challenger Reports. 



PEEFACK 



On the return of the Challenger the whole collection of Cephalopoda was placed by 

 Sir Wyville Thomson in the hands of Professor Huxley for examination and description, 

 and it wUl be regretted by all naturalists that this Eeport was not prepared by that 

 eminent master in the science of comparative anatomy. Professor Huxley's numerous 

 engagements, however, prevented him from undertaking more than the investigation of 

 the single specimen of Spirula which was obtained by the Expedition. The remainder of 

 the collection was offered to me by Mr. John Murray in the autumn of 1882, and within 

 the first few weeks of 1883 I received the specimens from South Kensington. Since 

 that period almost all my spare time has been occupied in the work of drawing up the 

 present Eeport. 



The lack of any collection of Cephalopoda in Edinburgh rendered progress slow at 

 first, but in the summer of 1884, by the invitation of Professor Steenstrup, I took the 

 Challenger specimens over to Copenhagen and spent a month in comparing them with 

 the unrivalled collection in the Zoological Museum of that city. I have also paid two 

 visits to the British Museum, and one of only a day or two in duration to the Museum 

 of the Jardin des Plantes in Paris. In this connection I must express my thanks in 

 the first place to Mr. John Murray for having placed so important and interesting a 



(ZOOL. CHALL. EXP, PART XLIV. 1886.) Xx a 



