V.I 



xVN ACCOUNT OF THE 



ALCYONARIANS 



COLLECTED BY THE 



ROYAL INDIAN MARINE SURVEY SHIP 



INVESTIGATOR 



IX THE 



INDIAN OCEAN 



BY 



J. ARTHUR THOMSON, MA, 



REGIUS PROFESSOR OF NATURAL HISTORY IN THIS UNIVERSITV OF ABERDEEN 



AND 



W. D. HENDERSON, M.A., B.Sc, 



CARNEGIE FELLOW, UNIVERSITY OF ABERDEEN 



I. THE ALCYONARIANS OF THE DEEP SEA 



^@5iS% 



lil^o.-o-.f^- 



CALCUTTA: 



PRINTED BY ORDER OF THE TRUSTEES OF 



THE INDIAN MUSEUM 



1906 



