REPORT 
ON THE 
SCIENTIFIC RESULTS 
OF THE 
VOYAGE OF H.M.S. CHALLENGER 
DURING THE YEARS i 8 7 3-7 6 
UNDER THE COMMAND OF 
Captain GEORGE S. NARES, R.N., F.R.S. 
AND 
Captain FRANK TOURLE THOMSON, R.N, 
PREPARED UNDER THE SUPERINTENDENCE OF 
THE LATE 
Sir C. WYVIILE 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, F.R.S.E. 
ONE OF THE NATURALISTS OF THE EXPEDITION 
Zoology— Vol. IX. 
TEXT. 
IPubltsijeb bp <®r&er of i£)er jHajestp’s <©ob eminent 
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AND SOLD BY 
LONDON LONGMANS & CO.; JOHN MURRAY; MACMILLAN & CO.; SIMPKIN, MARSHALL, & CO. 
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