170 ADDENDA, A'OL. I. 



10. HYPEROPISUS, Gill. 



1. HYPEROPISUS BEBE, Lacep. 

 Pellegr. Poiss. Bass. Tchad, p. 58, pi. iii. fig. 3 (1914). 



Erase H. tenuicauda from the synonymy, and add : — 

 50. Ad. Culufi R. above Bafata, Portug. Dr. W. J. Ansorge (C). 



Guinea, 

 f)!. Ad. Geba R. at Bafata. 



la. HYPEROPISUS TENUICAUDA. 

 Pellegi-. Bull. Mus. Pari^ 1904, p. 312, and op. cit. p. 59, pi. iv. 



Distinguished by the more slender caudal peduncle with only 16 

 scales round it. 



Shari Eiver. — Type in Paris Museum. 



11. GYMNARCHUS, Guv. 



1. GYMNARCHUS NILOTICUS, Guv. 

 Pellegr. Polss. Bass. Tchad, p. 61, pi. v. fig. 1 (1914). 



Fam. NOTOPTERID^. 

 1. NOTOPTERUS, Lacep. 



1. NOTOPTERUS AFER, Gthr. 

 Add :— 



16-19. Hgr. & yg. Nanna Kru, Liberia. W. P. Lowe, Esq. (C). 



20. Hgr. Corbal R, at Tcbitote, Portug. Dr. ^\ . J. Ansorge (G.)- 



Guinea. 



21. Ad. Geba R. at Bafata, Portug. 



Guinea. 

 22-23. Hgr. N. Sherbo district, Sierra N. W. Thomas, Esq. (P.). 



Leone. 



2. XENOMYSTUS, Gthr. 

 1. XENOMYSTUS NIGRI, Gthr. 

 Stcind. Denkschr. Ak. Wien, Ixxxix. 1913, p. 10. 

 Add :— 



20-21. Yg. SankuruR. at Kondue, Kasai. M. E. Luja (C.) ; Luxem- 



burg Museum (P.). 

 22-24. Ad. & hgr. N. Sherbo district, Sierra N. W. Thomas, Esq. (P.). 

 Leone, 



