256 



CHARACINIDJL 



15. NEOLEBIAS. 



Steind. Notes Leyd. Mus. xvi. 1894, p. 78 ; Bouleng. Poiss. Bass. Congo, p. 183 

 (1901). 



Barely separable from the preceding by the absence of teeth on the 

 maxillary bone. Lateral line absent or reduced to a few anterior 

 tubules. Adipose fin minute or absent. Vertebrae 31 (18-J- 13). 



Liberia to Congo. 



Two species : — 



Depth of body 2|-3i times in total length ; 



10 series of scales between dorsal and 



ventral 1. jV. unifasc'iatus, Stdr., p. 256. 



Depth of body 3|-4 times in total length ; 



9 series of scales between dorsal and 



ventral 2. N. trilineatus, Blgr., p. 257. 



1. NEOLEB1AS UNIFASCIATUS. 

 Steind. 1. c. pi. iv. figs. 3 & 4. 



Depth of body 2§ to 3£ times in total length, length of head 3 to 3-^ 

 times. Head twice as long as broad, slightly longer than deep, its 

 upper surface rugose in the adult; snout rounded, much shorter than 

 eye, which is 2J to 3 times in length of head and equals interorbital 

 width ; mouth terminal ; maxillary extending to below anterior border 

 or anterior third of eye ; 20 to 26 teeth in outer prsemaxillary series. 



Fig. 195. 



W^mmz^r 



mm- 



JVeoJebias unifciseuUus. 

 Ja River. 



Gill-rakers short, about 10 on lower part of anterior arch. Dorsal 

 HI-IV 7-8, originating above ventral, at equal distance from end of 

 snout and from caudal; longest ray § to f length of head. Anal III 

 6-7. Pectoral about § length of head, as long as ventral. Caudal 

 forked, with pointed lobes. Caudal peduncle as long as deep or a 



