MeO SCRE TIONS OF? WOME, SRDS EH 
Pen. Orv “A eC Heli KeAe A ee 
Byer. CHAUDHURI, DSc, (Edin). FR SEs PALS. 
Assistant Superintendent, Indian Museum. 
Descriptions of two new species in the Chilka Survey collec- 
tion are now published in advance of the report on the fish which 
is under preparation, in order to avoid the detention of a paper on 
the larval stages by Professor D. R. Bhattacharya, which will be 
issued shortly in vol. V of our Memozrs. 
Gobius ostreicola, sp. nov. 
The height of the body is 22°2% of the total length without 
the caudal fin, the length of the head is 35°5%, the least depth of 
the caudal peduncle is 15°5%, the diameter of the eye is 9%, the 
height of the first dorsal fin is 22'2%, the length of the pectoral 
fin is 33°3%, the length of the ventral fin is 26°6%, the base of 
the anal fin is 20%, the base of the second dorsal is 26°5%, the 
length of the caudal fin is 266% in the total length without the 
caudal fin.! 
The body is elongate and compressed. The caudal peduncle 
is very much compressed. The dorsal profile slopes downwards 
from the nape towards the caudal peduncle as well as towards 
the snout; the ventral profile is almost a straight line. 
The head is large and broad and is very much depressed, its 
breadth being shorter than its length by the length of its snout. 
The part of the head on each side in front of the opercle and 
behind the eye protrudes above and is inflated sideways with a 
pore behind. There is a median longitudinal groove from the 
occiput to the back of the eye. The interorbital space is saddle- 
shaped with a slight bridge-like elevation in the middle and is 
equal to the length of the snout. There are a series of minute pores 
—openings of muciferous glands—arranged in patterns round the 
eyes, the nasal area and other parts of the head. The nasal area 
has two fleshy tubular protuberances with two valvular openings 
behind each in front of the eyes. The eyes are rather large, and 
are not lateral but wholly superior, and project beyond the dorsal 
profile. The snout is short and is less than the diameter of the eye 
in length. 
The mouth is horizontal, the jaws are subequal, the lower jaw 
being slightly the longer, the angle of the jaws is vertically below 
the middle of the eye. The teeth are villiform and are in several 

! Measurements are in hundreds of length without the caudal fin. 
