260 



CIIAEACINIDJ?.. 



1. DISTICHODUS AFFINIS. 



Gllnth. Ann. & Mag. N. H. (4) xii. 1873. p. 144 ; Bouleng. Poiss. Bass. Congo, 



p. 187 (1901). 

 Distichodus abhreviatus, Peters, Men. Berl. Ac. 1876, p. 845. 



Depth of body 2 to 2f times in total length, length of head 3J to 4 

 times. Head as long as deep or a little deeper than long, 1| to 2 times 

 as long as broad; snout not compressed, as long as eye, which is 3 times 

 in length of head ; interorbital width 2 to 2^ times in length of head ; 

 maxillary extending to below nostrils; teeth in two series in each jaw, 

 outer series containing 20 teeth. Dorsal 10 (4 unbranched), equally 



Fi?. 197. 





l>' 



^^■' 



> ^ /• A '\ 



/ .'V 



iVV 



/i^ "■'^^Ssi^^'' 



-•^■^4^2^^^^"' 



Disficliodns affinis. 

 Lower Congo. 4. 



distant from head and from caudal, its base equalling its distance from 

 the small adipose fin. Anal 19-21 (3 unbranched), its base longer 

 than that of dorsal. Pectoral f length of head. Caudal forked, with 

 short rounded lobes. Caudal peduncle deeper than long. Scales 

 37-89 .^^, 7 between lateral line and root of ventral. Silvery, back 

 olive-brown ; anterior border of dorsal blackish. 



Total length 120 millim. 



Congo. 



1- ^^-y ^yp^- 



2. Hgr. 



3. Vg. 



4. Ad. 



Boma. Lower Conoo. 



Lower ( 'onuo. 



J. J. Bianconi, Esq. (C). 

 Caph Wilverth (C). 

 M.. P. Delhez (C). 

 M. F. Hens (C). 



