334 CYPRiNiD.i-:. 



I am indebted for the principal characters of the diagnosis given 

 above to Prof. Peters, who, at my request, examined the typical 

 specimen. 



4. Chela phnlo. 



Cyprinus phulo, Ham. Such. Fish. Gang. p. 202. 

 Opsarius albulus, M'Clell. Lid. Ci/pr. p. 416, pi. 48. fig. 10. 



D. a. A. 20. 



Scales very small. The height of the body is about equal to the 

 length of the head, and two-ninths of the total (without caudal). 

 The dorsal fin commences somewhat in front of the origin of the 

 anal. Pectoral fin longer than the head. (H. B.) 



North-eastern Bengal 



5. Chela novacula. 



Leuciscus novacula, Valenc. in Jacquemont, Voy. Ind. pi. 15. fig. 2 ; 



Cuv. 8f Val. xvii. p. .345. 

 ? Pelecus flavipiimis, Jerdon, Madr. Joui-n. Lit. ^ Sc. xv. 1849, p. 327. 



D. 9. A. 17. L. lat. 60. L. transv. 15/3. 



The height of the body is more than the length of the head, and 

 one-fifth of the total (with the caudal). Profile of the abdomen 

 somewhat arched below the pectorals. Lower jaw longer than the 

 upper. Eye large. The dorsal fin is above the anterior anal rays; 

 pectorals extending to or nearly to the ventrals. The lateral line 

 descends in a gentle curve gradually towards the abdomen. 



Pharyngeal teeth 5.4. 3—3 .4.5. ( Val.) 



East-Indian continent, (? Cavery River.) 



6. Chela diflFusa. 

 Pelecus diffusus, Jerdon, Madr. Jottrn. Lit. <§• Sc. xv. 1849, p. .327. 

 D. 9. A. 17. L. lat. 50. L. transv. 9 or 10. 

 The length of the head is equal to the height of the body, and two- 

 elevenths of " the total length of body ;" the diameter of the eye 

 one-third of the length of the head ; profile of back perfectly straight. 

 (^Jerdon.) 



Cavery Rivery ; 4-6 inches long. 



7. Chela argentea. 

 Day, Proc. Zool. Soc. 1867, p. 301. 



D. 9. A. 18. V. 8. L. lat. 43. L. transv. 6|/3. 

 The height of the body is nearly equal to, or rather more than, 

 the length of the head, which is contained four times and two-thirds 

 in the total length (without caudal). Snout as long as the ej'^e, the 

 diameter of which is two-sevenths of the length of the head. Sub- 

 orbital ring broad, covering the cheek, the third bone not being 

 narrower than the praeorbital. The maxillary extends to below the 

 front margin of the eye; lower jaw with a slight symphysial knob, 

 not projecting beyond the upper jaw. Lateral line descending to- 



