366 Mr. G. A. Boulenger «n new 



^ length of eye, posterior f (less still in the young). Dorsal 

 III 7, equally distant Irom eye and from caudal, with 

 concave border; last simple ray flexible, as long as head. 

 Anal II 5, not reaching caudal. Pectoral nearly § length of 

 head, not reaching ventral, which is inserted below anterior 

 rays of dorsal. Caudal peduncle 1^ times as long as deep. 

 Scales with few radiating striae, 24-25 ^f, 1^ between lateral 

 line and ventral, 8 round caudal peduncle; the exposed part 

 of the scales of the lateral line nearly 3 times as deep as 

 long. Brownish, the scales on the side edged with dark 

 brown ; fins whitish. 



Total length 110 mm. 



Lufuko River at Pala. 



Near B. congicus, Blgr., but dorsal with 7 branched rays 

 instead of 8. 



Chrysichthys stappersii. 



Depth of body 4;^ times in total length, length of head 

 3^ times. Head much flattened, 1^ times as long as broad, 

 rugose above; occipital process in contact Avith interneural 

 shield ; snout broadly rounded, projecting very feebly 

 beyond mouth ; eye Q>^ times in length of head and 2^ times 

 in interocular width ; width of mouth If times in length of 

 head ; band of premaxillary teeth curved, 7 times as long as 

 broad; voraero-pterygoid teeth in a long uninterrupted 

 band, very broad on the sides. Nasal barbel nearly as long 

 as eye, maxillary 1^ times length of head, outer mandibular 



I length of head. Gill-rakers moderately long, 10 on lower 

 part of anterior arch. Dorsal I 6, its distance from caudal 



I I times its distance from end of snout ; spine striated, a 

 little less than half length of head ; second branched ray 

 longest, a little more than half length of head. Adipose 

 dorsal 3 times as long as deep, 1^ times as long as rayed 

 dorsal, from which it is separated by a space a little greater 

 than its base. Anal IV 9. Pectoral spine ^ length of 

 head, strongly serrated on inner side. Caudal forked, 

 longest rays 3| times as long as median. Caudal peduncle 

 nearly twice as long as deep. Brown above, white beneath. 



Total length 430 mm. 

 Kilewa Bay. 



Near C cranchii, Leach, but mandibular barbels longer, 

 adipose fin larger, caudal more deeply notched. 



