LABEO. — DISCOGNATHUS. 



343 



about as long as eye in young; small tubercles on end of snout. Dorsal 

 III 10-11, nearly equally distant from end of snout and from caudal, 

 emarginate, longest ray a little longer than head. Anal II 5, not 

 extending beyond root of caudal. Pectoral as long as head, not reaching 



Fig. 258. 



Laheo harhatus. 

 Type (A. M. C). |. 



ventral, the first ray of vvhich is below 7th or 8th of dorsal. Caudal 

 with deep angular notch. Caudal peduncle as long as deep. Scales 



'71 Ql 



40-41 9j1,(j\ , 6 between lateral line and root of ventral, 20-22 round 

 caudal peduncle. Purplish above, yellowish white beneath, the dorsal 

 scales edged with darker ; dorsal pale yellow ; young with a large 

 blackish spot on caudal peduncle. 



Total length 500 millim. 



Lower Congo. — Types in Congo Museum, Tervtieren. 

 1. Hgr., one of the types. Boma. Capt. Wilverth (C). 



2-3. Ad. & yg. „ M. P. Delhez (C). 



4. Yg. Bangala Country. M. De Meuse (C). 



2. DISCOGNATHUS. 



Heckel, Russegger's Reise, i. pt. ii. p. 1027 (1843) ; Gunth. Cat. Fish. vii. p. 68 

 (1868) ; Bouleng. Fish. Nile, p. 180 (1907). 

 Body moderately or feebly compressed, covered with moderately large 

 scales. Lateral line equally distant from the back and from the belly. 

 Mouth inferior, transverse, crescent-shaped, protractile, sharp-edged, 

 with more or less developed lips ; a more or less developed suctorial 



