36 Journal of the Asiatic Society of Bengal. {January, 1913. 
cavity formed by the stone and the bottom. Unfortunately I 
was unable to catch either of these fish. One lot of eggs was 
seen off the mouth of the stream of the Wad-es-Semakh, the 
other just off the exit of the Jordan. In each case the water 
was less than two feet deep. 
Discognathus lamta (Ham. Buch.) 
Race rujus Heckel. 
careful comparison of specimens from northern Bengal (fig. 2 
(as the Province was formerly constituted) and my Syrian exam- 
ples (fig. 3) brings out the following differences :— 
(1) In the Bengal form the anterior barbel is distinctly 
longer than the posterior, while in the Syrian race 
the posterior barbel is usually the longer of the 
two. 
(2) In the Bengal form the sucker formed by the lower or 
posterior lip is almost semicircular, while in the 
rian race it is subtriangular. 
(3) In the Bengal form the anterior lip is broader and the 
mouth situated further back than in the Syrian 
race. 
(5) The ventral profile in the Bengal form is almost 
Straight, while in the Syrian one it is distinctly 
sinuous, becoming markedly concave between the 
pectoral and the pelvic fins. 
As Mr. Boulenger points out, the Asiatic species of Discogna- 
thus are in need of revision. At least four races occur in the 
northern Assam, and an undescribed form from Manipur. 
The common Assam form! is distinguished from the others by 
the small size of its eye and by the fact that the barbels are 
practically equal. The snout of the male is constricted in 
: Platcara nasuta, 5 Tees 
Discognathus modestus is perh aps the female. Geuta, of which Day 
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