i86 Records of the Tndiau Muse itui. [Vol. XXII, 



scales in front of the doisal. Barbels. — Both pairs of barbels are 

 well developed Maxillary barbels are longer than the rostrals 

 and are as long as the diameter of the eve. 



The vent is much nearer the base of the caudal fin than the 

 end of the snout. 



The mouth is semicircular ; its opening extends to the interior 

 border of the orbit. There are two rows of ojien pores on the 

 under surface of the head. The snout is usually tul:)erculated, 

 but in young individuals these tubercles are not developed. 



The fish is blackish blue in the region above the lateral line, 

 below it the sides and the ventral surface are dull white. The 

 membranous portions of the skin between the rays of the dorsal 

 fin are black in colour. The caudal along its superior and inferior 

 margins is edged with black. The young specimens are brighter 

 in colour and possess an obscure blotch at the base of the caudal 

 fin. In some specimens the scales along the lateral line and of 

 a few rows above and below it are covered by minute black spots, 

 forming longitudinal bands along the side 



Barbus clavatus is found in rivers at the foot of the Sikkim 

 mountains on the iior'hern frontier of Bengal and in the Naga 

 Hills at Kairong. 



Barbus hexastichus, McClelland 



i88y. Biu'bns licxastichiis. Day. up. cit., p. '^oS. 



1880. Baybits liexasficliKS. N'inciguerra, op. ci1 ., p. 241. 



Three grown u]:) specimens were obtained at Kairong. Thev 

 possess an indistinct black spot on either side of the tail. This 

 character is best marked in the young fry collected at various 

 places in small streams in the Naga Hills and also in Itok stream 

 near Chanderkhong in the ^Manipur Valley. 



Barbus tor {si.) (Ham. Buch.). 



Only one specimen of this species was obtained from Senapati 

 stream near Kairong, Naga Hills. The lips in the example are 

 well developed and are provided with thick adipose growth 



Barbus tor is a composite species and I hope to deal with its 

 races and species in a separate paper when sufficient material from 

 various localities is available. 



Barbus conchonius (Ham. Buch.). 



iS8q. Barbus conrlhun' if:^. D.'iy. tip. {-if., p. ,v^. 



Numerous specimens of this species were collected in lakes 

 and streams all over the valley. 



Barbus phutunio (Ham. Buch.). 



iSSi). Barbus phutunio. Day, op. cit.. p. 327. 



Numerous specimens of Barbus phutunio were collected from 

 the Residency ponds, Imphal. The following description of the 



