106 



MOEMTEID^. 



in its distance from head. Anal 36-43, equally distant from base of 

 ventral and from base of caudal. Pectoral pointed, f to f length of head, 

 more than twice as long as ventral, extending beyond base of latter. 

 Caudal scaled, vpith long pointed lobes. Caudal peduncle 3 times 

 as long as deep, f to f length of head. 75-80 scales in lateral line, 



2^1723 in transverse series on body, jg^ ^^ transverse series between 

 dorsal and anal, 12 round caudal peduncle. Uniform silvery. 



Kg. 85 



Onathonemus monteiri. 



Type. 



6 



Total length 450 millim. 

 Congo, Lake Bangwelu. 



1-3. Hgr., types. 



i. Ad. 



5. Skel. 



6-7. Ad. 



8. Ad. 



9-10. Ad. 



Boma, Lower Congo. 



Irebu, Ujiper Congo. 

 Upper Congo. 

 L. Bangwelu. 



J. J. Monteiro, Esq. (C). 

 M. P. Delhez (C). 



Brussels University. 



F. H. Melland, Esq. (P.). 



1.^. GNATHONEMUS MENTO. 



Mormyrus mento, Bouleng. Ann. & Mag. N. H. (6) vi. 1890, p. 193 ; Steind. Notes 



Leyd. Mus. xvi. 1894, p. 72. 

 Gnathonemus mento, Bouleng. Proc. Zool. Soc. 1898, p. 807. 



Depth of body 3^ times in total length, length of head 5 times. Head 

 as long as deep, with strongly curved upper profile ; snout -^ length of 

 head; a strong mental swelling; teeth notched, 5 in upper jaw, 6 in 

 lower; eye moderate, | length of snout, about | interorbital width. 

 Dorsal 29-33, originating above 9th ray of anal, its length twice in its 

 distance from head. Anal 36, equally distant from base of ventral and 



