CYPRINIDiE. 
73 
liaye escaped at once under and between the boulders. 
The fishermen therefore collected the boulders in heaps 
and left them thus for some days. Then, on coming 
to fish, they threw their casting-net over one of these 
heaps of stones, in which a lot of the fish had taken 
refuge. They then opened the centre of the net, and 
lifted the stones out one by one, till at last the fish 
alone were left in the net; in this way they secured 
a good number. 
1. Biscognatlius lamta. 
This fish is remarkable for the great extent of its 
geographical range. It is found from Palestine to 
Burmah, and has been described under many different 
names, as specimens from different localities are apt 
to differ slightly especially in the coloration. How- 
ever, there is no specific distinction to be found be- 
tween them. 
There are about 34 scales along the lateral line and 
9 transversely. There is a black spot behind the 
upper part of the gill opening. 
Char. The pectoral fin is not longer than the head, 
and terminates at some distance from the root of the 
ventral fin. 
2. Biscognatlius macroehir. 
Hab. Bengal and Assam. 
This species is very similar to D. lamta , and may 
possibly prove to be only a variety. 
Char. Pectoral fin longer than the head, terminat- 
ing close to the root of the ventral. Eye very small. 
