THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTOEY. 



[SIXTH SERIES.] 

 No. 33. SEPTEMBER 1890. 



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

 Survey Steamer ' Investigator ^^ Commander R. F. Iloshyn, 

 B.N, commanding. — No. 16. On the Bathyhial * 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. *fe IX.] 

 Contents. 



§ 1. Enumeration and Topography of the Dredging Stations. 

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

 tions of new Species. 



§ 1 . The Dredging Stations. 



Or 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- 

 fathom line as the near boundary of the bathybial fauna. In the Bay of 

 Bengal, at any rate, where ah-eady 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. Ser. 6. Vol. vi. 15 



