ALESTES. ^ 203 



width about 2J times in length of head ; maxiHary not quite extending 

 to below anterior border of eye ; 14 teeth (~) in upper jaw, 8 or 10 (^) 

 in lower ; lower border of second suborbital as long as eye. Gill-rakers 

 moderately long, 12-14 on lower part of anterior arch. Dorsal II 8, 

 originating above first or middle rays of ventral, at equal distance from 

 end of snout and from caudal, or a little nearer former, some of the rays 

 produced in males, longer than head. Anal III 19-21. Pectoral | to 

 f length of head, not reaching ventral, the outer branched ray of which 

 is produced in males. Caudal forked, with pointed lobes. Caudal 

 peduncle a little longer than deep. Scales with radiating and arborescent 

 or anastomosing canals, 24-29 J|, 2 between lateral line and root of 

 ventral. Silvery, back brown or olive ; a black band on caudal peduncle, 

 extending on caudal fin ; vertical black lines sometimes present on the 

 body ; dorsal and caudal yellow in females, red in males. 



Total length 110 millim. 



Sierra Leone to Congo. 



1-5. Tvjics. Sierra Leone. 



0. Skoi. „ 



7-16. Ad. A: li<ir. Freetown, Sierra Leone. R. Dinzey, Esq. (P.). 

 17. okcl. ,, ,, ,, 



18-19. Ad. Sapelle, Lower Nioor. Dr. W. J. Ansorge (C). 



20-22, 23-24. Ad. Kribi R., S. Cameroon. G. L. Bates, Esq. (C). 



25-29. Ad. k h<ir. Benito R. „ 



30-36. Hgr. Ogowe R. Miss Kingsley (C). 



37-38. Ad. Settc Cama, Gaboon. 



39. Ad. Stanley Falls. Rev. W. 11. Bentley (C). 



10. ALESTES CHAPERI. 



Sauv. Bull. Soc. Zool. France, 1882, p. 320, pi. v. fig. 3. 



Alestes lon(/ipi>mis, part., Giinth. Proc. Zool. Soc. 1902, ii. p. 338. 



Depth of body 2| to 3^ times in total length, length of head 3J to 4 

 times. Head twice as long as broad, as long as deep ; snout shorter 

 than eye, which is lateral and 2J to 2 J times in length of head; inter- 

 orbital region convex, its width 2J to 2§ times in length of head ; 

 maxillary extending to below anterior border of eye; 14 teeth (g) in 

 upper jaw, 10 (.;) in lower ; lower border of second suborbital as long as 

 or a little shorter than eye. Gill-rakers moderately long, 12-13 on 

 lower part of anterior arch. Dorsal II 8, originating just behind vertical 



