284 



INDIAN CYPRINIDiE. 



I. Gen.— SYSTOMUS* J.M. 



Char. Intermaxillaries protractile, dorsal and anal short, the former 

 opposite to the ventrals and preceded by a spinous ray ; body elevated, and 

 marked by two or more distinct dark spots, or diffuse spots either on the fins 

 or opercula, prominence on the apex of the lower jaw obscure. 



Obs. In the following species the depth of the body is equal to about 

 half the length, and the spinous ray of the dorsal is serrated behind, except 

 when otherwise described. 



S]pec. S. immaculatus, J. M. t. 44. f. 5. 



Four cirri, a slight golden tinge on the opercula, fins dark, 

 thirty-two scales on the lateral line and ten in an oblique line 

 from the base of the ventrals to the dorsum. D.ll : P.15 : V. 9 : 

 A.7 : C.19. 



Hab. Small streams with sandy bottoms in Assam, and 

 probably occasionally in the large rivers. 



Spec. S. chrysosomus, J. M. 



Two minute cirri, thirty-five scales along the lateral line ; 

 opercula and suborbitar plates stained with gold yellow. D. 10: 

 P.16: V.8: A.8: C.19. 



Hab. Bengal. Length about six inches.f 



* From Systomos, that has a narrow mouth. 



t From a figure in Capt. Burnes' Collection, this species would also seem to be an inhabitant 

 of the Indus ; it is nearly allied to the preceding species, and is probably a variety only. 



