468 



SILUKIDjE. 



Total length 230 millim. 

 Upper Congo. 



1. Type. Stanley Fall<. 



2. Hgr. Leopoldville. 



3. Ad. Upper Congo. 



Rev. V. H. Bentley (<\), 

 ('apt. Wilvertli (C). 

 Brussels University. 



;,:',. BYNODONTIS DEC'OIU'S. 

 Bonleng. Ann. Mas. Congo, Zool. i. ,, i9, pi. «v. <1»W), and Poiss. Bass. Congo, 



P . hi (liioi). 



Depth of body equal to length of head, 3f to 3f times in total length. 



Fig. 351. 



-TfT ' 



^Tf!\!if 



Synodontis decorus. 

 Type (A. M. C). |. 



Head about 1^ times as long as broad, as broad as deep, finely granulate 

 above from between the eyes ; snout pointed, nearly half length of head ; 

 eye supero-lateral, its diameter 4 to 4 J times in length of head, 1J to 2 

 times in interorbital width. Mouth narrow, with strongly developed 

 lips ; prsemaxillary teeth small and few, in 1 or 2 series ; movable 

 mandibular teeth hardly ■§- diameter of eye, 4 to 11 in number. 

 Maxillary barbel bearing small branches on outer border, some bifid, its 

 length j to once length of head ; mandibular barbels with long, mostly 



