468 



SILUKIU.E. 



Total length 230 millim. 

 Upper Congo. 



1. Type. Stanley Falls. 



2. Hgr. Leopoldville. 



3. Ad. Upper Congo. 



T{ev. W. H. Bentley (C). 

 Cixpi. Wilverth (C). 

 Brussels University. 



fi.3. 8YN0D0NTrS DECORUS. 



Bouleng-. Ann. Mn?. Congo, Zool. i. p. 40, pi. xxv. (1800), nnd Poiss. Bass. Congo, 

 p. 327 (1001). 



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



Fis. 351. 



V .S^ ■ ^-' i^' ^h ^.. \ V ^ 



S)/)iodouiis dcconis. 

 Type (A. M. C). |. 



Head about IJ 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 4J times in length of head, H 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 y 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 



