30:i 



ADDENDA, VOL. 11. 



smooth or feebly rugose above ; occipital process narrow, in contact with 

 the small interneural shield ; snout obtusely pointed, nearly as long as 

 broad ; eye 3 (young) to 4 times in length of head, equal or nearly equal 

 to interorbital width ; width of mouth 2§ to 3 times in length of head ; 

 prfemaxillary band of teeth straight, nearly 3 times as long as broad; 

 teeth on palate reduced to two small narrow bands ; nasal barbel ^ to 

 ^ diameter of eye, maxillary barbel ^ length of head in adult, § to f in 

 young. 14 to 16 gill-rakers on lower part of anterior arch. Dorsal I 6, 

 J-g- to 1^ times as distant from caudal as from end of snout; spine very 

 feebly serrated behind, 5 to f length of head ; first soft ray longest, at 



Fig. ISO. 



< 'h ri/sichtkys Jihtmen tuxus. 

 Tvpe (A. M. C). i. 



least as long as head, usually much longer. Adipose dorsal small, its 

 base i to ^ its distance from rayed dorsal. Anal 11-13, 7-8 rays 

 branched. Pectoral nearly f length of head ; spine strongly serrated 

 on inner border. Caudal deeply forked, lobes long and pointed, upper 

 longer, 3 to oj times as long as median rays. Caudal peduncle 1^ to 

 If times as long as deep. Olive-brown above, white beneath, silvery 

 on the sides ; fins greyish, end of dorsal blackish. 



Total length 21-5 millim. 



Chiloango. 



1. Type. 



2. Type. 

 ;!-J:. Type? 



(. iype. 



Luali R. at Buco Z;iu. 



„ at Lundo. 

 Loango R. at N'Kulu. 

 Lebuzi R. at Kuka Muno. 

 Chiloango Town. 



Dr. W. J 



Ansorge (0. 



Very closely allied to C. walker/. 



