262 Mr. G. A. Boulengei- on 



the Sirdar, Sir Reginald Wingate, to whose assistance, so 

 kindly granted to Mr. Loat on his journey through the 

 Soudan, the success of this part of the Nile Fish-Survey is in 

 no small measure due. 



Unless otherwise stated, the fish mentioned in tlie following 

 list were caught in the White Nile itself. Examples of four 

 species were obtained from a large lake, name unknown, in the 

 forest about 6 miles N.E. of Gondokoro. 



Polypteridae. 



1. Polypterus hichir, Geoffr. 



2. Polypterus Endlicheri , Heck. 



3. Polypterus senegalus^ Cuv. 



This is the only common species of the genus at Gondo- 

 koro, the two others being rare. 



Mormyridae. 



4. Marciisenius Isidori, C. &. Y. 



5. GnatJionemus cyprinoides , L. 

 From the lake. 



6. Hyperopisus lehe, Lacep. 

 Also Irom the lake. 



7. Mormyrus Hasselquistii, C. & V. 



Characinidae. 



8. Uydrocyon ForsJcaln, Cuv. 



9. J-Jydrocyon Hneatus, Blkr. 



10. AJestes dentex, Hasselq. 



11. AJestes haremose, Joannis. 



12. Alestes nurse^ Rlipp. 



13. AJestes macroJepidotus^ C. & V. 



14. Micr alestes acutidens, Ptrs. 



15. Distichodus hrevipinnis, Gthr. 



16. Nannocharax niloticus^ Joannis. 



17. Citharinus latus, M. & T. 



