( Provestonal Title ) 
he eke OU) 
ON THE 
fo SIGIIO IN GMs (MCs TRIB, SUS 
OF THE 
VOYAGE OF H. M.S. CHALLENGER 
DURING THE YEARS 1873-76 
UNDER THE COMMAND OF 
Captain GEORGE S. NARES, R.N., F.R.S. 
AND 
Cartan. FRANK TURLE THOMSON, RN, 
PREPARED UNDER THE SUPERINTENDENCE OF 
sir €. WYVILLE THOMSON, Knut; F-RS, &e. 
REGIUS PROFESSOR OF NATURAL HISTORY IN THE UNIVERSITY OF EDINBURGH 
DIRECTOR OF THE CIVILIAN SCIENTIFIC STAFF ON BOARD 
ZOOLOGY—VOL. II. 
Published bp Order of er Majesty's Government 
PRINTED FOR HER MAJESTY’S STATIONERY OFFICE 
AND SOLD BY 
LONDON :—LONGMANS & CO.; JOHN MURRAY; MACMILLAN & CO.; SIMPKIN, MARSHALL, & CO. 
TRUBNER & CO.; E. STANFORD; J. D. POTTER; anp C. KEGAN PAUL & CO. 
EDINBURGH :—ADAM & CHARLES BLACK anp DOUGLAS & FOULIS 
DUBLIN :—A. THOM & CO. AND HODGES, FIGGIS, & CO. 
1881 
Price fifty Shillings 
