Systomus. INDIAN CYPRINIDZ. 385 
C. sophore, eight S. immaculatus, ten Anabas scandens, Cuv., five E'sox cancila, 
Buch., five Opsarius fasciatus, J. M., and two Silurus singo, Buch. and five 
Trichopodus colisa, id. With the exception of the Trichopodus the five last 
kinds prey upon the Systom?, which are themselves insectivorous. The extent 
of the pond may have been 400 yards, and that of the net three yards ; and sup- 
posing half the fish to have escaped from under the net, the number in the 
pond would have been 32,000. When we consider the vast extent of surface 
occupied by waters equally productive, both in Bengal and Assam, we may 
form a conception of the inexhaustible supply of fish that might be procured 
for consumption in other parts of the country where they are less plentiful. 
IX.—Systomus cissosus, J. M. 
t. 44, f. 7. p. 
Cyp. Terio, Buch. 
Teri pungti of the fishermen. 
Back abruptly arched from the nape to the base of the dorsal, belly 
straight from the pectorals to the anal, which is placed on an oblique base, as in 
the Barbels. There is a distinct black spot on the lateral line over the anal. 
The fin rays are, 
DPS V9: Acs C.19: 
Colours above green, below silvery, the fins pale, the nape, snout, and part 
of the operculum marked each with a yellow diffuse spot. This and the fol- 
lowing species were found by Buchanan in the north eastern parts of Bengal, 
and are beautifully figured in his collection of drawings. Buchanan says that 
in old individuals the spot on the tail becomes surrounded by a faint ring. 
x X 
