190 INDIAN FRESH- WATER FISHES. 



Barbels 4, the rostral pair extending to the 

 middle of the orbit. 



Dorsal rays 12. Anal 14 to 16. Scales 32 to 34. 

 Several horizontal bine bars. 



Similiogaster belangerii. 



There seems to be no specimen of this fish in the 

 British Museum. Valenciennes considered it as 

 belonging to a genus distinct from Osteobrama, but 

 Dr. Day seems to think that it must be identical with 

 Osteobrama microlepis. 



Hab. Bengal. 



Abdomen sharp, without serrature. 



Char. Dorsal rays 10. Anal 21. Scales 75, 

 transverse 45. 



Chela diffusa, Jerdon. 



A species described by Dr. Jerdon from the Cavery 

 Kiver. Dr. Day suspects that it is the same as Chela 

 argentea, in which case the latter name would have 

 to be suppressed. 



There appear to be no specimens in the British 

 Museum of Jerdon' s fish. 



Char. Dorsal rays 9. Anal 17. Scales 50, trans- 

 verse 9 or 10. 



Profile of back perfectly straight. Length 4 to 6 

 inches. 



Callichrous gangeticus, Peters. 



In the B. M. Catal. this species is placed in the 

 genus Cryptopterus. It is said to have come from the 



