INDIAN CYPRINIDiE. 



289 



Spec. P. ostreographus,* J. M. t. 45. f. 3. 



Back straight, sides marked with several blue streaks. D.12 : 

 P.15: V.8:A.16: C.19. 

 Hab. Assam. 



In the next two species the altitude of the body is equal to a third 

 of the length. 



Spec. P. perseus,] J. M. t. 46. f. 5. 



Pectorals and ventrals long, one blue streak on either side. 

 D.19 : P.8 : V.5 (?) A.21 ; C— 



Hab. Assam, and probably Bengal. 



Spec. P. guttatus, t. 45. f. 4. /3 



Cyp. laubuca, Buch P. G. p. 260. 



A small green or blue spot over the base of each pectoral, 

 and another at the base of the caudal, on either side. D.IO : 

 P.12 : V.7 : A.24 : C— 



Hab. Northern parts of Bengal. 



In the following two, the first ray of each ventral is prolonged to half the 

 length of the body. 



Spec. P. psilopteromus,X i. 46. f. 4. j3 

 Cyp. loyukida, Buch. Coll. 

 Cyp. atpar, id. P. G. p. 259- 



Depth of body almost equal to half its length, much com- 

 pressed, ventrals elongated, a narrow blue streak along the 

 lateral line, D. 9 : P. 11, or 12 : V. 5 : A. 25 : C— 

 Hab. Bengal. 



* OaTptioypaij)}]^, marked with purple streaks ; from oarptioi' yparpu). 

 t Perseos, the Greek name of an unknown fish. 



X From Psilos slender, pteroma the fin of a fish. 



U 



