240 



ADDENDA, VOL. II. 



Ja River (Congo System), South Cameroon. — Type in Vienna Museum. 

 This and the two preceding species are distinguished from the other 

 allies oi H. hynni by the absence of the anterior barbel. 



66 e. BARBUS LUCIUS. 

 Bouleng. Ann. & Mag. N. H. (8) vi. 1910, p. 553. 



Depth of body 4^ to 4^ times in total length, length of head o\ to 

 ?)^ times. Head nearly 3 times as long as broad ; snout rounded, 

 3 to 3J times in length of head ; eye 3^ (young) to 5 times in length of 

 head, interorbital width 4 to 4J times ; mouth terminal, or lower jaw 

 projecting, its width 3^ to 4 times in length of head ; lips rather 



Fig. 1^9. 



Barhixs lucius. 



Type. 



1 



2* 



strongly developed, not extending across chin ; two barbels on each 

 side, the anterior very minute, the posterior i or | diameter of eye. 

 ])orsal III 9-10, equally distant from eye and from caudal, border 

 feebly concave ; last simple ray strong, bony, not serrated, J to f length 

 of head. Anal III 5, not reaching caudal. Pectoral ^ to f length of 

 head, not reaching ventral ; latter below anterior soft rays of dorsal. 

 Caudal peduncle nearly twice as long as deep. Scales finely striated 

 longitudinally, 43-47 M, 3 between lateral line and ventral, 16 round 

 caudal peduncle. Silvery, back brownish, fins orange. 



Total length 230 millim. 



Angola. 



1-2. Types. Lucalla R. at Lucalla. Dr. W. J. Ansorge (C). 



This species occupies an isolated position in the B. hynni division. 



