274 TELEOSTEI. - PIIYSOSTOMI. 



the end of the snout and the posterior margin of the base of the 

 anal fin, its upper edge is straight. Pectoral rather longer lhau 

 the head excluding the snout ; it does not reach the ventral, nor the 

 latter the anal. Anal laid flat just reaches the caudal, which is 

 moderately forked. Scales six rows between the lateral line and 

 base of the ventral fin. Colour grey, becoming lighter below, 

 narrow dark lines along the body ; fins black. 

 Hub. Irrawaddy and Salween rivers in Burma. 



316. (2.) Osteochilus neilli. (Fig. 94.) 



Labeo neilli, Day, P. Z. S. 1870, p. 99. 



Osteochilus neilli, Day, Fish. India, p. 545, pi. cxxx, fig. 2. 



B. hi. D. 17-18 (2-3/15-16). P. 15. V. 9. A. 7 (2/5). 

 C. 19. L. 1. 34. L. tr. 



Length of head 5|, height of body 3| in total length. Eyes 

 diameter 3| in length of head, lg diameters from end of snout, 

 and 2 apart. Snout rounded and smooth, it scarcely overlaps (lie 

 mouth, which is of moderate width ; no lateral lobe. Both lips 

 fringed with two, three, or more rows of well-developed papilla) 

 internally; groove across the mandible not complete; a cart i la- 



Fig. W. Osteochilus neilli. 



ginous covering internally to the lower jaw. Barbels the rostral 

 do not reach the orbit, the maxillary extend to beneath its centre. 

 Teeth pharyngeal, plough-shaped, 5, 4, 3/3, 4, 5. Fins the 

 dorsal commences before the ventral, and much nearer to the snout 

 than to the base of the caudal, its upper border is somewhat con- 

 cave ; caudal deeply forked. Scales 4 rows between lateral line 

 and base of ventral fin. Colour greyish yellow, deepest supe- 

 riorly, every scale being darkest at its base. A dull spot near the 

 root of the caudal fin, and another ill-defined one near the com- 

 mencement of the lateral line. Fins yellowish orange, dorsal 

 darkest at its basal half. 



