144 INDIAN FRESH-WATER FISHES. 



GENUS HEMIPIMELODUS. 



Char. No nasal barbels, anterior and posterior 

 nostrils close together. Head osseons above. Eyes 

 below the skin. 



Barbels six. 



1. Hemipimelodus peronii. 



Hab. India. 



Char. Anal rays 16. Head covered with soft skin. 

 Dorsal and pectoral spines strong, obscurely ser- 

 rated. 



Adipose fin as long as the anal. 



2. Hemipimelodus viridescens. 



Hab. N.W. Provinces. Small species. 

 Char. Anal rays 11 to 13. 



Back reddish brown crossed by three green bars. 

 Sides silvery. Dorsal and caudal fins spotted. 

 Dorsal spine not serrated. Pectoral serrated. 



GENUS OSTEOGENIOSUS. 



Char. Anterior and posterior nostrils close 

 together. 



Barbels, one pair only ; maxillary, stiff and bony. 



1. Osteogeniosus militaris. 



Hab. Eiver Ganges. 



Char. Anal rays 20 to 23. The barbels extend 

 beyond the end of the head when laid backwards. 



