508 



SILURID^. 



three occipital processes, the median embracing the point of the inter- 

 neural shield ; snout pointed, projecting strongly beyond the rnouth ; 

 eye 9 to 10 times in length of head, 3 to 3^ times in interocular width. 

 Maxillary barbel about ^ length of head, mandibulars ^. Coracoid and 

 clavicle exposed, rugose. First dorsal I 6 ; spine covered with asperities, 

 a little shorter than head. Anal 10 (first ray rudimentary). Pectoral 

 spine similar to dorsal, but a little shorter, not reaching ventral ; latter 



Fig. 379. 



Trachyglanis minuhis. 

 Type (A. M. C). x 2. 



widely separated from ventral. Caudal peduncle a little depressed, 

 about ^ total length. Series of scutes beginning before origin of dorsal, 

 uniting on caudal peduncle; 18-20 dorsal and 29-30 latero-ventral 

 scutes, 9-10 last on caudal peduncle. Light brown above, darker on 

 the head and sides, with broad dark bars ; belly whitish. 



Total length 50 millim. 



Ubanghi. — Types in Congo Museum, Tervuereii. 

 1-2. Two of the typos. Banzyville. C;ipt. Koyuux ((*.). 



38. BELONOGLANIS. 

 Boulcng. Ann. Mus. Congo, Zool. ii. p. 50 (1902;. 



As in the preceding, but bony scutes still more developed, not keeled, 

 and forming a single series on the back behind the dorsal fin, first 

 dorsal and pectoral rays thickened but not spinous, and mouth 

 toothless. 



Ubanghi. 



