1871.] F. Day — Monograph of Indian Cyprinida, 137 



Goreah, Assam. 



B. III. D. 3/10, P. 18, V. 9, A. 8, 0. 19, L. 1. 42, L. tr. 8/8. 



Barbels rudimentary or absent. 



Snout with pores, lower lip distinct. 



Fins. — Dorsal commences nearer to the end of the snout than to 

 the root of the caudal, and opposite the tenth scale of the lateral 

 line. 



Scales. — Five rows between the lateral line and the base of the 

 ventral fin. 



Colours. — Bluish or brownish black above, becoming silvery white 

 on the abdomen. 



Habitat. — " It is found in the clear active currents of the Brah- 

 maputra, from middle Assam to the rapids at the extremity of the 

 valleys, but appears to be equally unknown in mountain torrents, 

 and sluggish rivers and jheels in the plains." {McClelland). It 

 grows to two feet and upwards in length. 



7. *ClRRHINA BERO. 



Cyprinus dero, Ham. Buch., Fish. Ganges, pp. 277, 331, 385, pi. 

 22, f. 78 ; ^McClelland, Ind. Cyp., pp. 267, 326. 



Cirrhina dero, *Cuv. and Val., XVI, p. 296. 



Dliengro, Assam. 



B. III. D. 3/10 ; P. 18, V. 9, A. 7, C 19. 



" Head oval and blunt. The snout projects a little beyond the 

 mouth, is fleshy, and marked with callous points. # # The mouth 

 is small, the upper jaw protruding in opening. The lips are fleshy 

 and smooth on the edges. * # A ridge on the lower jaw. # # 

 At each corner of the mouth is a minute tendril." 



Eyes. — ll High up and small." 



" The back slopes gently before the fin, and is rather sharpened. 

 The edge of the belly is rounded." 



Fins. — " The pectoral fins are shorter than the head. # # The 

 lobes of the tail are sharp and equal." 



Lateral line : — " is below the middle and is bent downwards." 



Scales : — " of moderate size." 



Colours : — " of the back and belly are irregularly indented into 

 each other on the sides. The dorsal and caudal fins are dotted." 



