INDIAN CYPRINID#. 311 
Fig.12. Stomach and intestine of the Systoms; fig. 13, of the Perilamps ; 
fig. 14, of the Leucises; and fig. 15, of the Opsarions. In this last 
genus the alimentary canal is merely divided into stomach and cloaca. 
Fig. 16. Stomach and intestine of Platycara maculata; fig. 17, stomach and 
intestine in the genus Cobitis propria ; fig. 18, the same in Schistura. 
Fig. 19. Perilampus thermophilus, J. M. The caudal fin in the only two 
specimens I received is imperfect. 
PLATE XXXVII. 
Fig. 1. Catastomus dyocheilus, J. M. Goreah of the Assamese’; about one- 
fifth of the natural size. 
Fig. 2. Cyprinus semiplotus, J. M. Senturee of the Assamese ; with a figure of 
the head, natural size. 
PLATE XXXVIII. 
Fig. 1. Cyp. mrigala, Buch. One-fifth the natural size, from a living specimen 
in Assam. This is one of the species figured by Buchanan, Pisce. Gang. 
t. 6, 79, but there is such a want of character in the figure alluded 
to that I am induced to submit another, the accuracy of which may 
be put to the test in any of our fish markets in Bengal. 
Fig. 2. Cyp. cursa, Buch. This figure is taken from Buchanan’s Collection. 
Fig. 3. Cyp. cursis, Buch. Drawn half size from a dried specimen. I after- 
wards found a far better figure of this species in Buchanan’s 
collection. It is very nearly allied to Cyp. cursa, fig. 2;—both are 
distinguished by their small scales and the flesh being full of small 
bones. Fig. 4 is the air vessel, the anterior cell of which is double. 
