214 



CHAEACINID.E. 



border of eye; 16 teeth {-^) in upper jaw, 10 (77) in lower; lower 

 border of second suborbital a little longer than eye. Gill-rakers long 

 and slender, a little shorter than gill-filaments, 22-26 on lower part 

 of anterior arch. Dorsal II 8, originating immediately behind vertical of 

 base of ventral, nearer caudal than end of snout, longest ray f length of 

 liead. Anal III 12-14. Pectoral | to | length of head, not reaching 

 ventral. Caudal forked, with rounded lobes. Caudal peduncle a little 

 longer than deep. Scales with radiating and anastomosing canals, 



— 4- 



27-29 .-Ti, 2 between lateral line and root of caudal. Dark green 

 above, silvery beneath ; two large round black spots on each side, 

 the first between lateral line and last rays of dorsal, the second at 

 base of caudal. 



Total length 140 millim. 



Upper Congo. — Types in Congo Museum, Tervueren. 

 1-2 Types. Kufcu, Lake Leopold II. M. P. Delhez ((!.). 



18. ALESTES T^NIURUS. 

 Giinth. Ann. & Mag. N. H. (3) xx. 1867, p. 113 ; Bouleng. Poiss. Bass, 

 p. 156 (1901) : Pellegr. Bull. See. Philom. (0) ix. 1907, p. 22, fig. 



Fiff. 101. 



Congo, 



Alenies keniurus. 

 Type. 



Depth of body 2J to 2| times in total length, length of head 4 to 

 4J times. Head If to 2 times as long as broad, as long as deep or 



