282 SILUEID^E. 



2 (young) to 4 times in interorbital width ; width of mouth a little less 

 than interorbital width ; vomero-palatine teeth forming an uninterrupted 

 band, which is as broad as or a little broader than the band of prae- 

 m axillary teeth. Nasal barbel j to f length of head, maxillary barbel 

 f to § ; inner mandibular barbel about j length of outer, which is 

 inserted behind it and measures about -J length of head. Gill-rakers 

 moderately long, widely set, 7 to 9 on lower part of anterior arch. 

 Dorsal I 6, exactly above ventrals, 2 to 2j times as distant from caudal 

 as from end of snout ; its spine slender, feebly serrated behind, as long 

 as or a little longer than head, produced into a filament. Anal 52-63, 

 4 or 5 anterior rays simple, the following gradually decreasing in length. 

 Pectoral reaching origin of anal or a little beyond, its spine rather 

 feebly serrated on inner side, as long as or a little longer and stronger 

 than that of dorsal. Caudal deeply forked, with pointed lobes. Caudal 

 peduncle as long as or a little longer than deep. Silvery, back brownish ; 

 fins uniform whitish (or pink); a more or less distinct dark blotch on 

 each side above the pectoral fin, corresponding to the thinner skin over 

 the air-bladder ; young sometimes with a dark lateral band. 



Total length 420 millim. 



Congo. 



1. Type. Lower Congo. Capt. Tnckey (C). 



2. Ad. Yelala, nr. Matadi, L. Congo. M. P. Delhez ((1). 



a. Ad. Monsembe, Upp. Congo. Rev. J. H. Weeks (P.). 



4-9. Ad., hgr., & yg. Stanley Falls. Rev. W. H. Bentley (C). 



10. Skel. „ „ 



2. EUTROPIUS BANGUELENSIS, sp. n. 

 Depth of body 3f times in total length, length of head 5 times. Head 

 1^ times as long as broad ; snout broad, projecting slightly beyond 

 mouth, longer than eye, which is 5 times in length of head and 3 times 

 in interorbital width ; width of mouth a little less than interorbital 

 width ; vomero-palatine teeth forming an uninterrupted band, which is 

 as broad as the band of prsemaxillary teeth. Nasal barbel f length of 

 head, maxillary f, inner mandibular |; outer mandibular : k. Gill-rakers 

 moderately long, widely set, 9 on lower part of anterior arch. Dorsal 

 I 6, entirely in advance of vertical of ventrals, twice as distant from 

 caudal as from end of snout ; its spine slender, feebly serrated behind, 

 the rigid part as long as head, the whole ray If times as long as head. 

 Anal 59, 4 anterior rays simple, fourth nearly as long as head. Pectoral 

 reaching ventral, its spine feebly serrated on inner side, as long as and 



