794 MB. G. A. BOULENGEB ON THE FISHES [NoV. 15, 



Mormyrus microcephalus, Giinth. Ann. & Mag. N. H. (3) xx. 

 1867, p.' 115. 



Mormyrus liberiensis, Steind. Notes Leyd. Mus. xvi. 1894, 

 p. 67. 



Depth of body 4g to 5g times in total length, length of head 

 4| to 6^. Head 11- to 1^ as long as deep, snout convex, :^ to f 

 length of head, slightly projecting beyond the mouth ; mouth 

 small, subinferior, below level of eye, it? width A length of head ; 

 teeth small, feebly notched, 5 in the upper jaw, 6 in the lower ; 

 nostrils nearly equally distant from end of snout and from eye, 

 anterior on a level with centre of latter, posterior with lower 

 border ; eye small, about | length of snout or iiiterorbital width. 

 Dorsal 15-18, hardly g as long as its distance from head, origi- 

 nating above 10th to 14th ray of aual. Anal 25-30, nearly twice 

 to 2i as long as dorsal, nearer base of caudal than base of ventral. 

 Pectoral obtusely pointed, at least | length of head, Ig to 1| 

 length of ventral, reaching base of latter. Caudal densely scaled 

 in the basal half, with pointed lobes. Caudal peduncle 2-1- to 

 3 times as long as deep, as long as head or a little shorter. 



8-10 



58-64 scales in the lateral line, j:^ in a transverse line on the 



7—8 



body, gr^ in a transverse line between dorsal and aual, 12 round 

 caudal peduncle. Brown. 



Total length 175 millim. 



West Africa, from Sierra Leone to the Congo. 



4. MaRCUSENIUS KINGSLEXiE. 



Mormyrus Mngsleyce, Giinth. Ann. & Mag. N. H. (6) xvii. 

 1896, p. 281, pi. XV. fig. A. 



Marcusenius lingsleya, Bouleng. Ann. Mus. Congo, Zool. i. 

 1898, p. 7. 



Depth of body 4i times in total length, length of head 5. 



Head 1^ as long as deep ; snout convex, l length of head, slightly 



projecting beyond the mouth ; mouth small, subinferior, below 



level of eye, its width ^ length of head ; teeth feebly notched, 



5 in the upper jaw, 6 in the lower ; nostrils nearly equally distant 



from end of snout and from eye, anterior on a level with centre of 



latter, posterior with lower border ; eye small, i length of snout, 



i interorbital width. Dorsal 18, its length g its distance from 



head, originating above 8th ray of anal. Anal 22, a little longer 



than dorsal, nearer base of caudal than base of ventral. Pectoral 



pointed, i length of head. If length of ventral, not reaching base 



of latter. Caudal densely scaled in the basal half, with pointed 



lobes. Caudal peduncle 21 as long as deep, | length of head. 



55 scales in the lateral line, jj in a transverse line on the body, 



^ in a transverse line between dorsal and anal, 12 round caudal 



peduncle. Brown. 



Total length 100 millim. 

 Old Calabar. 



