Comprehensive DescriptionRead full entry
From Boulenger 1909, pp. 209-210.
Depth of body 2 2/3 to 3 1/2 times in total length, length of head 3 1/2 to 4 1/4 times. Head 1 2/3 to 2 times as long as broad, as long as deep or a little longer; snout as long as or a little shorter than diameter of eye, which is lateral and 3 to 3 1/2 times in length of head; adipose eyelid feebly developed; interorbital region feebly convex, its width 2 1/5 to 2 2/3 times in length of head; maxillary not extending to below anterior border of eye; 16 teeth (8/8) in upper jaw, 10 (8/2) in lower; lower border of second suborbital as long as or longer than eye. Gill-rakers moderately long, 16-20 on lower part of anterior arch. Dorsal II 8, originating above middle or last ray of ventral, at equal distance from end of snout and from caudal, or a little nearer latter; longest ray as long as or a little shorter than head. Anal II-III 14-16. Pectoral ¾ to 5/6 length of head, not reaching ventral. Caudal forked, with pointed lobes. Caudal peduncle 1 to 1 2/3 times as long as deep. Scales with radiating and arborescent or anastomosing canals, 23-29 along lateral line, 4 ½ scales above lateral line, 3 ½ scales below lateral line, 1 ½ - 2 between lateral line and root of caudal. Silvery, back olive or bluish ; a dark spot often present behind the head, above the lateral line ; a large black blotch on the caudal peduncle. Total length 195 millim.
Description based on specimens from the Congo and Liovuma to the Quanza and Limpopo.—Types in Berlin Museum.