SILUE1D.E, 301 



5. OHRYSICHTHYS NIGRODIGLTATUS, Lacep. 

 Add :— 

 43. Yg. Jebba, Upper Niger. 0. H. Firmin, Esq. (P.;. 



44-46. Hgr. & yg. Tano R., Gold Coast. Dr. H. G. F. Spurrell (P.). 



47-48. Ad. & hgr. Geba R. at Batata, Portug. Dr. W. J. Ansorge (C). 



Congo. 

 411-50. Ad. & hgr. Akonolinga, Nyong R., S. G. L. Bates, Esq. (C). 



Cameroon. 

 51-52, 53-56. Yg. N. Sherbo district, Sierra N. W. Thomas, Esq. (P.). 



Leone. 



6. OHRYSICHTHYS WALKER T, Gthr. 



Add :— 



14-16. Ad. Lebuzi R, (Cliiloango) at Dr. W. J. Ansorge (0 ). 



Kuka Muno. 

 17-18. Hgr. & yg. Ohiloango U. at Mayili. „ 



19. Hgr. Ohiloango Town. ,, 



20. Ad. Luculla R. (Ohiloango). 

 21-22. Ad. Geba R. at Bafata, Portug. 



Guinea. 

 23. Yg. N. Sherbo district, Sierra N. W. Thomas, Esq. (P.). 



Leone. 



Two species have been confounded in my description of C. walker i . 

 C. persimilis (fig. 254) is to be erased from the synonymy. 



6 a. OHRYSICHTHYS PERSIM1LIS. 



Giinth. Proc. Zool. Soc. 1899, p. 727, pi. xliii. ; Bonleng. Ann. Mus. Congo, 

 Zool. ii. 3, p. 19 (1912). 



Width of mouth greater than in C. walkeri, If to 2 times in length 

 of head. 



Gaboon, Ohiloango. 



1. Type. Gaboon. R. B. N. Walker, Esq. (G). 



2. Ad. Lebuzi R. (Ohiloango) at Kuka Dr. W. J. Ansorge (G). 



Muno. 



3. Ad. Luali R. (Ohiloango) at Lnndo. ,, 



6 b. OHRYSICHTHYS FILAMENTOSUS. 

 Bouleng. Ann. Mus. Congo, Zool. ii. 3, p. 19, pi. xviii. fig. 2 (1912). 



Depth of body 4^ to 5 times in total length, length of head 3^- to 

 3-|- times. Head moderately depressed, If to 2 times as long as broad, 



