CYPRINIDJS. CYPBININ.E. 255 



caudal fin, has no osseous ray, and is as high as the body below it. 

 The pectoral is as long as the head behind the nostril, and does not 

 quite reach the ventral, which latter arises beneath the last few 

 dorsal rays, and extends two thirds of the distance to the base of. 

 the anal. Anal when laid flat reaches the base of the caudal, its 



Fig. 91. Ptyckobarbits conirostris. 



base is 2g in its height. Scales the tile-like row small, not one 

 third the diameter of the eye. Colour -silvery, darkest on the 

 back and upper half of the body, where most of the scales have 

 dark edges. Upper surface of the head spotted with black. Some 

 dark spots on the dorsal fin, and sometimes a few light ones on 

 the caudal. 



Hub. Head-waters of the Indus and Tibet. 



8. Genus DIPTYCHUS, Steindachner. 



Abdomen rounded ; snout obtuse ; mouth inferior, transverse, 

 curved ; lower jaw sharp, with an internal horny covering ; lips 

 continuous and having an uninterrupted labial fold across the 

 mandible. Two maxillary barbels. Gill-opening narrow. Pha- 

 ryngeal teeth compressed 4, 3/3, 4. Dorsal fin without osseous ray, 

 commencing anterior to the ventrals : anal short ; caudal forked. 

 Scales small, not imbricate but scattered along the upper two 

 thirds of the body, the thoracic region, the sides and the tail, also 

 a scaly sheath to the vent and base of the anal fin. Lateral line 

 continued to the centre of the base of the caudal. 



289. (1.) Diptychus maculatus. (Fig. 92.) 



Diptychusmaculatus, Steind. Verh. z.3>. Ges. Wien, 1866, p. 788, 1. 13, 

 lig. 5; -Day, Fish. India, p. 534, pi. cxxiv, fig. 3 (see synon.). 



B. iii. D. 10-11 (2-3/8-9). P. 19. V. 9. A. 7 (2/5). 



C. 19. L. 1. 80-90. 



Length of head 5 to 6 in the total length. Eyes diameter 4^ 

 iu the young to 6 in the adult in the length of the head, \\ to 2 

 diameters from the end of the snout, and 1^ apart. Lower labial 

 fold interrupted in the middle. Barbels a pair on the maxilla 

 hardly so long as the eye. Fins dorsal as high as the body, 



