106 



MOEMYEIDiE. 



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, 

 '"^3 in transverse series on body, jri^u. in transverse series between 



21-23 unuo'W". o<-ii^o <jh """J) 10-14 



dorsal and anal, 12 round caudal peduncle 



Fig. 85 



Uniform silvery. 



v.'-. 



Gnathonemus monteiri. 



Type. 



Total length 450 milliin. 

 Congo, Lake Bangwelu. 



1-3. Hgr., types. 



Boma, Lower Congo. 



J. J. Mouteiro, Esq. 



(C.) 



4. Ad. 



i) » 



M. P. tfelhez (C). 





5. Skel. 



»> » 



>> 





6-7. Ad. 



Irebu, Upper Congo. 



» 





8. Ad. 



Upper Congo. 



Brussels University. 





9-10. Ad. 



L. Bangwelu. 



F. H. Melland, Esq. 



(P-) 



13. 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 - x % length of 

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

 lower ; eye moderate, ■§ length of snout, about f 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 



