On the Bcithybial Fishes of the Arabian Sea . 
295 
XXXIV. — Natural History Notes from H.M. Indian Marine 
Survey Steamer c Investigator] Commander R . F. Hoskyn, 
R.N., commanding . — No. 18. On the Bathybial Fishes of the 
Arabian Sea , obtained during the season 1889-90. By A. 
Alcock, M.B., Surgeon I. M. S., Surgeon-Naturalist to 
the Survey. 
Contents. 
§ 1. Sketch of the Hydrography and Zoology of the Dredging 
Stations. 
§ 2. Notes on the Fishes, with Descriptions of new Species. 
§ 1. Sketch of the Hydrography and Zoology of the 
Dredging Stations. 
The bathybial fishes which the ‘ Investigator ’ has to record 
from the Arabian Sea number nineteen specimens, of fifteen 
species, thirteen genera, and six families, all of which were 
obtained in two hauls of the trawl at the following stations : — 
Station 104. — 11 A.M. to 4 P.M., 3rd May, 1890. 
Lat. 11° 12' 47" N., long. 74° 25' 30" E., off the Elicapeni 
Bank, in the Laccadive Sea. Depth 1000 fathoms. Tem- 
perature at the surface 83° Fahr., at the bottom 38°*6 Fahr. 
Bottom olive mud, with 2T5 per cent, of shells of Foramini- 
fera, chiefly Olobigerina and Pulvinulina. 
Besides nine species of fishes, the trawl contained numerous 
specimens of Sponges (including Hyalonema and Poliopogon?) } 
Alcyonids, Actinids, Turbinolid Corals [Caryophyllia) , Echi- 
noids (including Phormosoma) ) Asteroids, Holothuroids 
(including Deima ), and Crustaceans (chiefly Peneeids). 
Station 105. — 7 A.M. to 12 noon, 5th May, 1890. 
Lat. 15° 02' N., long, 72° 34' E., about 75 miles west of 
the Goa coast, Laccadive Sea. Depth 740 fathoms. Tem- 
perature at the surface 83° Fahr., at the bottom 44° Fahr. 
Bottom coral-mud, with 12 per cent, of Foraminifera shells. 
Besides six species of fishes, the haul brought to light a 
very large number of Crustaceans (Isopods, Penaeids, Palse- 
monids ? Crangonids, Homarids, Pagurids, Galatheids and 
Homolids) ; Actinids, Turbinolid Corals ; Astropectinids, 
Ophiurids, Echinoids (including Asthenosoma) , Holothuroids j 
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