106 



MOEMTRID^. 



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, with long pointed lobes. Caudal peduncle 3 times 

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



If)- 19 



13-17 



2^^723 i" transverse series on body, j^jzn in transverse series between 

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



Y'ls.. 85. 



Total length 450 millim. 

 Congo, Lake Bangwelu. 



1-3. H^r., types. 



4. Ad. 



5. Skel. 

 6-7. Ad. 

 8. Ad. 

 9-10. Ad. 



Gnaihonemus monteiri. 

 Type. 4. 



Boiiia, Lower Conjio. 



Irebu, Upper Congo. 

 Upper Congo. 

 L. Bangwelu. 



J. J. Monteiro, Esq. (C. 

 M. P. Delhez (C). 



Brussels University. 

 F. H. Melland, Esq. (P. 



13. GNATHONEMUS MENTO. 



Mormyruf, 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 3J times in total length, length of head 5 times. Head 

 as long as deep, with strongly curved npper profile ; snout yo Itjngth of 

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

 lower ; eye moderate, f 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 



