MAECUSEXICJS. 



67 



head ; teeth small, 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 5th ray of anal, not J 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, 1 J length of ventral, 



iMg. 4!J. 



""^^ 



2Ia)'cnseniii.<i splieeoiles. 

 Kribi Eiver. f . 



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, Esij. ((!.). 



6. Skel, 

 7-10. Ad. 



11. Ad. 



12, Hgr. 



Ja R. at Bitye, Cameroon. 

 Talagouga, Ogowe. 

 Lukula R., Coniro. 



Miss Kingsley (C). 

 Brussels Museum (E.), 



0. MARCUSENIUS BRACHISTIUS. 



Marmsemus hrachyistius, Gill, Proc. Ac. Pliilad. 18G2, p. 139 ; Bouleng. Proc. 



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

 Mormyrus hracliyistius, Giinth. Cat. Fisli. vi. p. 219 (1866). 

 Mormyrus microcep]ia/us, Giinth. Ann. &, Mag. N. H. (3) xx. 1867, p. 11^^. 

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



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

 to G^ times. Head ly to IJ times as long as deep; snout convex 

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



F 2 



