SILUKIDJF.. 



1. ANSORGIA VITTATA. 

 Bouleng. 1. c. pi. xix. fig. 2. 



Depth of body 4| to 4| times in total length, length of head 

 4|- to 5|- times. Head 1^ to If times as long as broad ; snout broad, 

 rounded, as long as eye in adult, extending a little beyond lower jaw ; 

 eye perfectly lateral, 2f (young) to 3f times in length of head, 1^ to 

 If times in interorbital width, which equals width of mouth ; vomero- 

 palatine teeth forming an uninterrupted band, the width of which 

 equals or a little exceeds that of the prsemaxillary band ; nasal barbel 



Fig. 178. 



Ausorym vittata. 

 Type (A. M. C). 4. 



| to J diameter of eye ; maxillary barbel as long as head or a little 

 shorter and about If times mandibular barbel. Gill-rakers moderately 

 long, slender, and wide apart, 6 or 7 on lower part of anterior arch. 

 Dorsal I 5, entirely in front of vertical of ventrals ; spine moderately 

 strong, serrated behind, and produced into a filament. Adipose dorsal 

 small. Anal 42-46. Pectoral reaching ventral, its spine a little 

 stronger than that of dorsal and serrated on inner side. Caudal forked, 

 with pointed lobes. Caudal peduncle as long as deep. Back brown, 

 sides silvery, belly white ; a black band along each side, from the head 

 to the lower lobe of the caudal, where it bends down at an angle ; this 

 band as broad as or a little narrower than the silvery space separating it 

 from the brown of the back ; fins white, base of anal sometimes dotted 

 with black. 



Total length 107 millim. 



Chiloango. 



1. Type. Chiloango R. nt Mayili. Dr. W. J. Ansorge ((■.). 



2-4. Typos. Loango R. nt N'Kutu. ,, 



5. Skel. ,, ,. .. 



