102 INDIAN FRESH- WATER EISHES. 



Abdomen sharp from the pectorals backwards. 



Lower jaw prominent. 



Scales deciduous, extending forwards on the nape 

 to above the posterior margin of the orbit. 



Pectoral fin, when laid backwards, reaches the 

 ventral. 



9. Chela argentea. 



Hab. Bowany Kiver, at the base of the JSTeilgherries. 

 6 inches. 



This sj)ecies is perhaps the same as the Chela diffusa 

 which comes from the Cauvery Eiver, in which case 

 the latter name would have to be adopted, as having 

 the priority. 



Char. Anal rays 18. Scales 43 to 45. 



Suborbital ring broad, covering the cheek. 



Lower jaw not projecting. Origin of anal below 

 the foremost rays of the dorsal fin. 



Pectoral fin very long, extending beyond the origin 

 of the ventral. Thorax not sharp. 



10. Chela boopis. 



Hab. South Canara. 5 inches. 



Char. Anal rays 18. Scales 37. 



Suborbital ring broad, nearly covering the cheek. 

 Origin of anal below the hinder part of the dorsal fin. 



Eyes large. Thorax smooth. Dorsal, anal, and 

 caudal fins tipped with black. 



The two following species differ from all the species 

 previously described in not being so long in the body. 



