ichthyology. 315 



Systomus sopkore, ? M'Clell. 



Cyprinus " Buch. 



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ROSE^riNNEU SYSTOMUS. 



Another species of systomus, with red-tipped fins, and 

 without barbules, is common. 

 Systomus. 



BLACK-TAILED SYSTOMUS. 



Another small fish, from four to six inches long, with 

 the caudal fin partly black, and hence called by the Bur- 

 mese the black tailed fish, is, T think, a species of 

 Systomus. 



BLACK-BACKED SYSTOMUS. 



One species of the genus is characterized by a black 

 back. 



Systomus. 



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PER1LAMP. 



A small fish belonging to Cuvier's genus abramis, or 

 bream, but which falls into M'Clelland's new genus pe- 

 rilampus, abounds here The mouth is placed on the up- 

 per part of the head, the back straight from the head to the 

 tail, and it appears to be nearly related to P. perseus, but 

 they differ in the fin rays. 



Pcrilampus. 



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SCARLET-F1NNED PERILAMP. 



A distinct species with reddish fins, the mouth opening 

 upwards, and the lateral line near the edge of the belly, is 

 common at Tavoy. 



Penlampus. 



