1S72.] F. Day — Monograph of Indian Cyprinidce. 189 



Length of head 1/7, of caudal 2/11, height of body 2/11 of the total 

 length. Fyes, high up, diameter 2/9 of length of head, 2 diameters from 

 end of snout, f a diameter apart. Snout somewhat swollen, barbels about 

 equal in length to the diameter of the eye. Fins ; dorsal arises midway 

 between the posterior margin of the orbit and the base of the caudal. The 

 anal hi the last third of the body. Caudal cut square. Scales, distinct. 

 Lateral line, absent. Colours, straw coloured with a badly developed dai'k 

 line along the centre of the body, and irregular greyish . pencillings along 

 the back. Pectoral, ventral, and anal yellowish ; dorsal with several irre- 

 gular and badly marked black bands. Caudal with a dark mark at its base, 

 and several irregularly directed vertical bands. 



Sab. — Upper Assam. The specimen from which this description is drawn 

 up was taken at the Bezwada anicut on the Kistna, and it agrees moderate- 

 ly well with McClelland's figure and definition. 



19. Nemachelltts phoxocheila. 



Colitis phoxocheila, McClelland, Ind. Cyp., pp. 305, 439, t. 52, fig. 4; *Cuv. and 

 Val., xvii ; p. 79. 



Nemachilus phoxocheila, *Giinther, Cat., vii, p. 361 ; Day, Proc. Zool. Soc, 1869, 

 p. 551. 



B. III. D. 2/9, A. 2/5. 



Length of head more than height of body. Eyes, situated before the 

 middle of the length of the head, and 2 diameters from end of snout. 

 Snout rather depressed, no ridge between the orbits. Barbels ; four rostral, 

 as long as the diameter of the orbit, and two shorter maxillary ones. 

 Fins ; dorsal commences midway between the anterior margin of the orbit 

 and the base of the anal, and slightly in advance of the ventral. The 

 pectoral does not reach the ventral, nor the latter the anal. Scales, minute. 

 The two specimens from which this description was drawn up were labelled 

 as above in the Calcutta Museum, but their colours were bleached, whilst 

 their tails were destroyed. The caudal fin should be rounded and entire. 



McClelland's description gives an apparently different fish ; he says that 

 the head is raised obliquely as in the Perilamps, but this is a frequent 

 post-mortem appearance ; the ridge between the eyes being sharp and bony. 

 Colours, above clouded with brown, silvery beneath, with a dark nebulous 

 streak along the side. Several small bars across the caudal fin. 



D. 8, P. 8, V. 6, A. 6, C. 16, and according McClelland only four barbels. 



Sab. — Mishmi mountains in Northern Assam. 



20. Nemacheiltts sekpentarius. 

 Day, Proc. Zool. Soc. 1869, p. 551. 



B. III. D. 2/8, P. 17, V. 9, A. 2/5, C. 19, L. 1. 61, L. tr. 12/17. 

 Length of head 1/5, of caudal 1/5, height of bod}'' nearly 1/5 of the 

 total length. Eyes, small, behind the middle of the length of the head, 



