EDITORIAL NOTE. 



The Préface to the Account of the Deep Sea Madreporaria coUected hy the 

 Royal Indian Marine Survey Ship ' Investigator,' recently published by order of 

 the Trustées of the Indian Muséum, explains briefly how the ' Investigator ' 

 collections came to be made and to be deposited in the Muséum. 



I hâve hère only to thank Dr. Kœhler, in behalf of the Trustées of the 

 Muséum and of the past and présent Naturalists of the Ship, for bis kindness in 

 naming and describing the Ophiuroidea collected up to the end of the year 1895. 



The présent Fasciculus relates only to the Deep-sea Ophiuroidea, and Dr. 

 Kœhler desires it to be known that he himself has not corrected the proofs either 

 of the text or plates. 



A. Alcock, Major, I.M.S., 



Superintendent ofthe Indian Muséum. 



