130 CHABACINIDJL 



same species, an opinion the correctness of which was afterwards confirmed on the fish 

 being rediscovered in the Nile by Bilharz. The species does not occur in the Lower 

 Nile, the northernmost locality on record being Kosheh, where a single specimen was 

 obtained by Mr. Loat, who notes : " This fish is said to eat the leaves of a species of 

 willow which generally grows close to the water's edge, for which reason the natives 

 call it ' safTsaff' (uJt-aJL*), that being the name by which the tree is known." Mr. Loat 

 saw further specimens at Omdurman and at Tewfikyeh on the Blue Nile, and collected 

 a large number at Rosaires in the Blue Nile and at Gondokoro in the Bahr-el-Gebel. 

 " The natives at Omdurman call the fish ' saflTsaffa ' (aioJu?). At Rosaires the specimens 

 were caught in the Nile or in a large pond left by the receding river." 



In the specimens I opened 1 found the stomach full of vegetable matter, sometimes 

 mixed with debris of small insects. 



