130 F.Day — Monograph of Indian Cyprinida. [No. 2, 



darkish band near commencement of lateral line, and a dark mark 

 before base of caudal fin. Burma. 



*3. Osteochilus cephalus,T>. 3/13, A. 3/6, L. 1. 36 ; 2 barbels. 

 Colours uniform. Pegu. 



1. Osteochilus rostellatus. 



Rohita rostellatus, Cuv. and VaL, XVI, p. 256. 

 Rohita lineata, Cuv. and Yal , XVI, p. 260. 

 Rohita chalybeata, Cuv. and VaL, XVI, p. 271. 

 Labeo chalybeatus, *Griinther, CataL, VII, p. 60. 



B. III. D. 2/18, P. 21, V, 9, A. 3/5, C 29, L. 1. 55, L. tr. 9/10. 



Length of head nearly 1/5, of caudal 2/9, height of body 2/7, 

 of dorsal fin 2/1 1 of the total length. 



Eyes; — diameter 2/7 of length of head, 1£ diameters from end 

 of snout, 2 diameters apart. 



Snout overhanging the mouth which is transverse and not very 

 wide, lips reflected from off lower jaw leaving its sharp edge ex- 

 posed ; both lips fringed and glandular. No lateral lobe to the 

 snout. A distinct inner fold to the upper lip. Four short barbels. 



Fins. — Dorsal arises considerably nearer to the snout, than to 

 the base of the caudal, and much in advance of the ventrals ; its 

 upper edge is straight. Caudal deeply forked. 



Lateral line : — 6 \ rows of scales between it and the base of the 

 ventral fin. 



Colours : — silvery, the edges of the scales darkest. 



Habitat. — Irrawadi and Salween rivers in Burma. The species 

 attains 2 feet in length. 



2. Osteochilus neilli. PI. IX, f. 5. a.b. 

 Day, Proc, Zool. Soc. 1870, p. 99. 

 B. III. D. ^|-, P. 15, V. 9, A. 2/5, C. 19, L. 1. 34, L. tr. 5^/6^ 



Length of head nearly 1/5, of caudal 1/4, height of body 2/7, of 

 dorsal fin 1/6 of the total length. 



Eyes: — diameter 2/7 of length of head, 1J diameters from end 

 of snout, 2 diameters apart. 



Body compressed. Snout rounded and smooth, it scarcely over- 

 laps the mouth which is of moderate width. No lateral lobe. 



