142 INDIAN FRESH-WATER FISHES. 



5. Rita kuturnee. 



Hab. Deccan. 6 inches. 



Char. Maxillary barbels longer than the head. 



Humeral process two thirds as long as the head, 

 narrow and rounded behind. Dorsal and pectoral 

 spines, moderately strong, strongly serrated. Adi- 

 pose fin shorter than the dorsal fin. 



GENUS OLYEA. 



This genus contains two small species from the 

 Khasia Hills, but they are very insufficiently known. 



Char. Head and body very long and low. Barbels 

 8. Eye small. 



1. Olyra longicaudata. 



Char. Anal rays 23. Pectoral spine strong, ser- 

 rated on both edges. Caudal fin lanceolate. 



2. Olyra laticeps. 



Char. Anal rays 15, the rays becoming longer to- 

 wards the hinder end of the fin. Caudal fin rounded. 



GENUS AEIUS. 



This genus contains many species, scattered over 

 the tropical regions of the globe. Many of them in- 

 habit salt water as well as fresh, some are entirely 

 marine. 



Char. No nasal barbels. Anterior and posterior 

 nostrils close together. Head osseous above. Eyes 

 with a free orbital margin. Barbels six. 



