170 ADDENDA, VOL. 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. 



51. Ad. Geba R. at Bafata. 



la. HYPEROPISUS TENUICAUDA. 

 Pellegr. 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 Kiver. — Type in Paris Museum. 



11. GYMNARCHUS, Cut. 



1. GYMNARCHUS NILOTICUS, Cuv. 

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



Fam. NOTOPTERID.E. 



1. NOTOPTERUS, Lacep. 



1. NOTOPTERUS AFER, Gthr. 

 Add :— 



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



20. Hgr. Corbal R. at Tchitote, Portug. Dr. W. J. Ansorge (C). 



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. 



Steind. Denkschr. Ak. Wien, lxxxix. 1913, p. 10. 



Add:— 



20-21. Yg. Sankuru R. 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. 



