REPORT 



ON THE 



SCIENTIFIC RESULTS 



OF THE 





VOYAGE OF H.M.S. CHALLENGER 



A -. ■ — -<~\ 



■(<8if i 



■v. — ■ ' « o , 



DURING THE YEARS i873-76 



UNDER THE COMMAND OF 



Captain GEORGE S. NARES, R.N., F.R.S. 



AND THE LATE 



Captain FRANK TOURLE THOMSON, R.N. 



PREPARED UNDER THE SUPERINTENDENCE OF 



THE LATE 



Sir C. WYVILLE THOMSON, Knt, F.R.S., &c. 



REGIUS PROFESSOR OF NATURAL HISTORY IN THE UNIVERSITY OF EDINBURGH 

 DIRECTOR OF THE CIVILIAN SCIENTIFIC STAFF ON BOARD 



AND NOW OF 



JOHN MURRAY 



ONE OF THE NATURALISTS OF THE EXPEDITION 



Zoology— Vol. XV. 



MARINE 

 ICAt 

 fORY 



I IRARY 



33 HOLE, MASS. 

 W. H. 0. I. 



Ipubltstjen bp ©rUer of fytv jflajestp's ©otommmit 



PRINTED FOR HER MAJESTY'S STATIONERY OFFICE 



AND SOLD BY 



LONDON :— LONGMANS & CO.; JOHN MURRAY; MACMILLAN & CO.; SIMPKIN, MARSHALL, & CO. 



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