THE ANNALS 



AND 



MAGAZIXE OF NATURAL HISTORY. 



[SIXTH SERIES.] 

 No. 33. SEPTEMBER 1890. 



XXVI. — Natural History Notes from H.iM. Indian Marine 

 Survey Steamer ' Investigator ^^ Commander li. F. Hoshyn^ 

 B.N., commanding. — No. 16. On the Bathylial'^ Fishes 

 collected in the Bay of Bengal during the season 1889-90. 

 By A. Alcock, M.B., Surgeon I. M. S., Surgeon-Natu- 

 ralist to the Survey. 



[Plates VIII. & IX.] 

 Contents. 



§ 1. iMinmeration and Topograpli}^ of the Dredgiu<? Stations. 

 § 2. Review of the Collection, with List of the Fishes and Descrip- 

 tions of new Species. 



§ 1 . The Dredging Stations. 



Of nine hauls of the trawl in depths of a hundred fathoms 

 and over within the limits of the Bay of Bengal during the 

 surveying-season of 1889-90, only five added anything to the 

 collection of fishes, and it will not be necessary to mention 

 here any but these five. 



* Following the precedent of Dr. Gunther, I have here taken the 100- 

 fathoni line as the near boundary of the bathybial fauna. In the Ray of 

 Bengal, at any rate, where already at 70 fathoms we find among all the 

 classes of marine animals numerous characteristic reactions to bathybial 

 conditions, tlie 100-fathom line appears to be a sufficiently unequivocal 

 limit. 



Ann. & Mag. N. Hist. Scr. 6. Vol, vi. 15 



