CHAEACiNID^. 



183 



times. Head nearly as long as deep, its width a little less than its 

 length to occiput ; snout rounded, projecting a little beyond the mouth, 

 as long as or a little longer than eye; eye perfectly lateral, 3f to 4 times 

 in length of head ; interorbital width twice in length of head ; maxillary 

 not extending to below anterior border of eye ; 16 (|) teeth in upper 

 jaw, 10 (^) in lower; lower border of second suborbital equal to diameter 

 of eye or a little longer. Gill-rakers moderate, 17 to 20 on lower part 

 of anterior arch. Dorsal II 8, originating immediately behind vertical 



Fig. 117. 



Alestes schoutedeni. 

 Type (A. M. C). |. 



of last ray of ventral, and at equal distance from anterior or posterior 

 border of eye and from root of caudal ; first branched ray | to f length 

 of head. Anal III 11-12. Pectoral a little shorter than head, not 

 reaching ventral. Caudal forked, with pointed lobes. Caudal peduncle 

 a little longer than deep. Scales with anastomosing canals, 26-28 yf, 

 IJ between lateral line and ventral. Olive-brown above, pinkish white 

 .beneath ; sometimes a broad dark brown band along the side ; a large 

 blackish blotch on the caudal peduncle ; fins brownish grey, pectorals 

 and ventrals sometimes with a large median black spot. 



Total length 220 millim. 



Chiloango System, Lower Congo. 

 1-2. Tj'pes. Lobuzi R. at Boma Vonde. Dr. W. J. Ansorge (C). 



3. Type. „ Kuka Muno. „ 



Intermediate between J. poptce and A. grand isquamis in the position 

 of the dorsal fin ; distinguished from both by the more numerous gill- 

 rakers. 



