294 ADDENDA, VOL. IT. 



times ; nasal barbel f length of head, maxillary and outer mandibular 

 as long as head. Dorsal I 6, originating a little in front of vertical of 

 ventrals ; spine serrated behind. Anal 56. Pectoral extending beyond 

 base of ventral, its spine longer than that of dorsal and serrated on 

 inner border. Dark brown above, greyish brown beneath ; a large 

 blackish -brown spot on each side behind the head. 



Total length 100 millim. 



Ja River (Congo), South Cameroon. — Types in Vienna Museum. 



Distinguished from S. uranoscopus by the longer barbels. 



•2b. SCHILBE MARMORATUS. 

 Bouleng. Bull. Soc. Nat. Luxeuib. 1911, p. 222. 



Depth of body 3J to 4 times in total length, length of head 

 A\ to 5 times. Head as long as broad or a little longer than broad ; 

 snout extending a little beyond lower jaw ; eye perfectly lateral, 

 4 to 4 J times in length of head, 3 to 3^ times in interocular width ; 

 nasal barbel f to f length of head, maxillary a little longer than head, 

 outer mandibular 3 times as long as inner and a little shorter than 

 maxillary. Dorsal I 5, in front of vertical of ventrals ; spine very feebly 

 serrated behind, | length of head. Anal 52-54, reaching root of caudal. 

 Pectoral reaching ventral, its spine longer than that of dorsal and 

 serrated on inner border. Caudal deeply notched, upper lobe longer. 

 Yellowish, marbled with brown ; a large round blackish spot on each 

 side behind the head ; fins brown or marbled with brown ; a yellowish 

 bar across pectoral and ventral ; caudal with the base dark brown or 

 blackish, followed by a yellowish bar. 



Total length 145 millim. 



Congo (Sankuru River). — Type in Luxemburg Museum. 



1. Ad. Sankuru R. at Kondue, Kasai. M. E. Luja (C.) ; Luxem- 



burg Museum (P.J. 



Distinguished from S. mystus and S. uranoscopus by the longer 

 barbels, the absence of caudal peduncle, and the coloration. 



10a. ANSORGIA. 

 Bouleng. Ann. Mus. Congo, Zool. ii. 3, p. 17 (1912). 



Characters of Eutropius, except for absence of anterior or inner 

 barbels. Vertebrae 46 (16 + 30). 

 A single species. 



