1916.) B. L. Cuaupuurr: Fish from the Chilka Lake. 107 
The colour of the body (in spirit) is mottled dark brown, the 
ventral side and the sides of the abdomen being slightly lighter ; 
the fins are dull white and the two dorsal, anal and caudal fins 
are banded by series of black spots in the spines and rays; in the 
first dorsal fin there are four such series of black dots, in the 
rest it varies from two to three. 
The fish was found breeding among the oyster beds near 
Manikpatna in the Satpara peninsula. 
The type specimen, measuring 45 mm. without the caudal fin 
and 57 mm. with it, was collected in the beginning of the month 
of December, 1914 near Manikpatna among the oyster beds. 
There are altogether five co-types, two of which, measuring 48 
mm. and 49 mm., were collected along with the type specimen near 
the same spot. The other three co-types measuring 39 mm. to 41 
mm. were collected on the 5th of September. I914 near the same 
locality. 
Petroscirtes bhattacharyae, sp. nov. 
The height of the body is 18% of the total length without 
the caudal fin, the length of the head is 25%, the least depth of 
the caudal peduncle is 11°5%, the diameter of the eye is 7%, the 
length of the snout is 9%, the length of the pectoral fin is 18%, 
the length of the ventral fin is 14%, the length of the caudal fin 
is 16%, the base of the dorsal fin is 72%, and the base of anal 
fin is 22% in the total length without the caudal fin. 
The body is moderately elongate, round and naked. The 
snout is rounded and short; the mouth is sub-inferior and termi- 
nal; the cleft of the mouth is narrow. There are two small 
tentacles about the middle of the snout in front of the nasal 
openings. 
There are long incisiform teeth in a single row in each jaw, 
and a pair of canine teeth at each angle of the jaws. The upper 
canine teeth are very much bent and recurved, the lower ones are 
longer and stouter and not curved. The number of incisor teeth 
in the upper jaw is 18 and that in the lower 16. There is a con- 
siderable alveolar space between the upper canine and the last 
(outermost) incisor of the upper jaw in each side—in which space 
the lower canine is lodged when the mouth remains shut. 
The fins are thin, the spines and rays are hyaline and the 
interstices are membranous. There is a single dorsal fin with 
thirty-one spines commencing slightly in front of the gill-openings 
and ending near the base of the caudal fin; the posterior spines of 
the dorsal fin are higher than the anterior ones, some of the long 
posterior spines being almost double the length of the anterior 
short ones. The anal fin has twenty-one rays, the last rays 
almost touch the lower caudal rays. The caudal fin is fan-shaped, 
it appears to be somewhat truncated and has rounded sides. 
The ventral fin consists of two fleshy round rays united at the 
base and free at the end, the free portion of the outer ray is 
nearly double that of the inner free end. The pectoral fin is 
