from the Ogoive River and Old Calabar. 277 



broad-snouted {Ch. BUttikoferi). Possibly more than these 

 two species should be distinguished. Miss Kingsley found 

 Ch. BUttikoferi at Kondo-Kondo and in Corisco Island. 



Synodontis serratuSj Riipp. 

 Old Calabar. 



Malapterurus heninensis^ Murr. 

 »we River. 



Laheo couhie, Riipp. 



Old Calabar ; Ogowe River. 



Old Calabar. 



Barhus Kessleri^ Steind. 



Specimens from the Ogowe River have tlie barbels rather 

 longer and the base of the dorsal fin at a steeper slope than 

 specimens from Angola. 



Barilius Ubie. (PI. XV. fig. C.) 



? Leuciseus bibie, De Joannis, Gu^rin, Mag. Zool. 1835, Pise. pi. iv. ; 

 Gunth. Fish. vii. p. 293. 



D. 10. A. 18. V. 9. L. lat. 54. L. transv. 8/4. 



Body compressed, its depth being two ninths, the length of 

 the head one fourth, of the total length (without caudal). 

 Head oblong, with pointed snout, which is equal to the 

 diameter of the eye or two sevenths of the length of the head. 

 Width of the interorbital space equal to the diameter of the 

 eye. Mouth wide, oblique, the narrow maxillary extending 

 to below the middle of the eye, its extremity being hidden 

 below the suborbital, when the mouth is shut. PrjBorbital 

 about half the area of the orbit ; the first suborbital is 

 narrow, much narrower than the second and third, which 

 nearly entirely cover tlie cheek, leaving only a space un- 

 covered about equal to the size of the first suborbital. The 

 origin of the dorsal fin is rather nearer to the caudal than to 

 the occiput ; origin of the anal fin below the middle of the 

 dorsal. Caudal fin deeply forked. Pectoral fin shorter than 

 the head, not reaching the much shorter ventral. Scales 

 thin, with very distinct radiating stride ; lateral line sweeping- 

 down in a curve towards the abdomen, and, following the lower 

 profile, terminates below the centre of the caudal fin. Silvery, 

 with twelve bluish vertical bars along the middle of the side, 

 and with a large blackish spot at the root of the caudal. 



Ann. & Mag. N. Hist. Ser. 6. Vol. xvii. 20 



