MARCtTSEXICS. 



6< 



head ; teeth sm:ill, notched, 5 in upper jaw, 6 in lower ; nostrils midway 

 between eye and end of snout, posterior on a line with lower border of 

 eye; eye small, \ length of snout, \ interorbital width. Dorsal 17-21, 

 originating above 6th ray of anal, not h as long as its distance from the 

 head. Anal 24-26, equally distant from base of ventral and from base 

 of caudal or a little nearer latter, not more than once and ^ as long as 

 dorsal. Pectoral pointed, f to f length of head, lh length of ventral, 



Fig. 49. 



Marcw>eniitst sphecodes. 

 Kribi River, t. 



reaching base of latter. Caudal with pointed lobes. Caudal peduncle 

 3 to 3J times as long as deep, nearly as long as head. 67-90 scales 

 in lateral line, jg^ in transverse series on body, g in transverse series 

 between dorsal and anal, 12 round caudal peduncle. Brown, lighter 

 beneath. 



Total length 210 millim. 



Cameroon to Congo. — Type in Paris Museum. 



1-2, 3-5. Ad. & yg. Kribi R., S. Cameroon. G. L. Bates, Esq. (0.). 

 6. Skel. „ „ ,, 



7—10. Ad. Ja R. at Bitye, Cameroon. ,, 



11. Ad. Talagouga, Ogowe. Miss Kingsley (C). 



12. Hgr. Lukula R., Congo. Brussels Museum (E.). 



6. MARCUSENIUS BRACHISTIUS. 



Marcusenius braehywtius, Gill, Proc. Ac. Pliilad. 1862, p. 139 ; Bouleng. Proe. 



Zool. Soc. 1898, p. 793, and Poiss. Bass. Congo, p. 75 (1901). 

 Mormyrus brachyistius, Giinth. Cat. Fish. vi. p. 219 (1866). 

 Mormyrus microcephalus, Giinth. Ann. & Mag. N. H. (3) xx. 1867, p. 11 5. 

 Mormyrus liberunsis, Steind. Notes Leyd. Mus. xvi. 1894, p. 67. 



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

 to 6-g- times. Head lj to 1-j times as long as deep; snout convex 

 \ to -| length of head, slightly projecting beyond mouth ; mouth small, 



F 2 



