108 Records of the Indian Museum. |Vou. XII, 1916. ] 
rounded and has a somewhat muscular base. It is considerably 
posterior to the origin of the ventral fin. There is an anal 
papilla equidistant from the end of the snout and the base of the 
caudal fin, it is also in the middle of the vent and the anterior 
origin of the anal fin. 
The ground colour of the head and of the body is dull brown 
with a lighter shade in the abdominal region. On each side of 
the head there are four broad transverse bands, black in colour, 
with interspaces equally broad but white; on the upper part of 
the head there is one white horse-shoe-shaped loop commencing 
behind the eyes and reaching round the occiput. On the side of 
the body there are eight or nine very faint but darkish transverse 
bands—broader than those on the sides of the head, with interspaces 
equally broad; along the middle line on each side of the body— 
on each of these dark faint bands—there are altogether eight or 
nine round black blotches. Looking from above the lighter inter- 
spaces, that pass through the base of the dorsal fin from side to 
side, appear as many white blotches. The fins are diaphanous 
and slightly darkish, the anal fin being darker than the rest. 
The dorsal and the anal fins are edged with bright white points 
and the base line of the caudal fin has a white band posterior to 
a dark band. There is a transverse broad black band low down 
on the anterior side of the base of the pectoral fin. The terminal 
edge of the opercular membrane is white. 
The type specimen, measuring 44 mm. without the caudal 
fin and 51 mm. with that fin, was obtained at Barkul Point on 
the 2nd March, 1914. There are altogether eleven co-types. 
Habitat.—The species is a permanent inhabitant of the lake, 
both in the Main Area and in the outer channel, breeding in the 
lake, 
~~ SS ESSE ae ae 
