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 THE LATE 



Captain FRANK TOURLE THOMSON, R.N. 



PREPARED UNDER THE SUPERINTENDENCE OF 



THE LATE 



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



KF.r.nrs professor of natural history in thf. university of edinburch 



DIRECTOR of THE CIVILIAN SCIENTIFIC STAFF ON BOARD 

 AND NOW OF 



JOHN MURRAY 



ONE OF THE NATURALISTS OF THE EXPEDITION 



Zoology— Vol. XXI. 



TEXT 

 Ptibltst)fti b]) 0i:Xitt of I^er iWajestp's (Soliernment 



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