198 CTPRTNID^. 



wMchi is two-sevenths of the total (without caudal). Head rather 

 low, with the upper profile somewhat concave. The width of the 

 interorbital space is much more than the diameter of the eye, which 

 equals the length of the snout, and is one-fourth of that of the head. 

 Mouth oblique, of moderate width, the maxiUary extending to the 

 vertical from the front margin of the orbit; lower jaw projecting 

 beyond the upper. Caudal fin deeply forked. Each series of scales 

 along the side of the body with an obtuse ridge ; two longitudinal 

 series of scales between the lateral line and ventral fin. Coloration 

 uniform, silvery. GUI-rakers rather slender, not veiy short, setiform. 

 Eiver Eovuma. 



a. Type of the species. From Lieut.-Col. Playfair's Collection. 

 ^. With barbels (Megarasbora). 



12. Rasbora elanga. 



C}-prinus elanga, Ham. BkcJi. Fish. Gamj. p. 281. 



Leucisciis dystomus, HVClell. Ind. Cypr. pp. 292, 406, pi. 56. fig. 4. 



D. 9. A. 7. V. 8. L. lat. 40. L. transv. 7/5. 



The height of the body equals the length of the head, which is one- 

 fovu'th of the total (without caudal). Snout somewhat pointed, but 

 scarcely longer than the diameter of the eye, which is nearly one-fourth 

 of the length of the head, and much less than the width of the inter- 

 orbital space. Jaws even in front, with the notches and prominences 

 very conspicuous. A pair of barbels near the upper end of the maxil- 

 laries ; they are very small, scarcely half as long as the eye. Origin 

 of the dorsal fin immediately behind the root of the ventrals, and 

 midway between the root of the caudal and the eye. Pectoral fin not 

 extending to the ventral. There are one and a half longitudinal series 

 of scales between the lateral line and ventral fin. Uniform silvery. 



Assam and Bengal. 



«. Four and a half inches long. Cachar. Presented by Lieut.-Col. 

 Playfair. 



47. LUCIOSOMA. 



Barbus, sp., Cuv. c^- Val. 



Luciosoma, Bleek. Prodr. Cypr. p. 411. 



Trinematiclithys, Bleek. All. Ichth. Cypr. p. 131. 



Scales of moderate size. Lateral line curved downwards, running 

 along the lower part of the body and tail. Dorsal fin with seven 

 branched rays, inserted behind the ventrals, and extending to above 

 the anal ; anal short. Mouth very wide, extending beyond the 

 front margin of the orbit, with the lower shghtly prominent and 

 tapering into a tubercle fitting into a groove of the upper jaw. 

 Barbels four, more or less developed. The third suborbital is broad, 

 nearly covering the cheek entirely. Gill-rakers extremely short, 

 widely set ; pseudobranchiae. Pharyngeal teeth 5.4. 2 — 2 .4.5, 

 inicinate. 



East-Indian archipelago. 



