ALESTES. 



201 



7. ALESTES THOLLONI. 

 Pellegr. Bull. Mus. Paris, 1901, p. 329. 



Depth of body a little less than 3 times in total length, length of head 

 4 times. Head a little longer than deep ; snout shorter than eye, which 

 is 2f times in length of head ; adipose eyelid feebly developed ; inter- 

 orbital width a little greater than diameter of eye ; maxillary hardly 

 reaching to below anterior border of eye; 14 teeth (^) in upper jaw, 

 10 ( 2 ) in lower. Dorsal II 8, originating above base of ventrals, at 

 equal distance from end of snout and from caudal. Anal II 24-26. 

 Pectoral nearly reaching base of ventral. Caudal forked. Scales 32 |*, 

 2 between lateral line and root of ventral. Silvery, back bluish. 



Total length 105 millim. 



French Congo. — Types in Paris Museum. 



8. ALESTES LNTERMEDIUS. 

 Bouleng. Proc. Zool. Soc. 1903, i. p. 22, pi. i. fig. 1. 



Depth of body 3 times in total length, length of head 4 times. Head 

 twice as long as broad, as long as deep; snout shorter than eye ; latter 

 2g to 2-f times in length of head; adipose eyelid indistinct; interorbital 



Fig. 151. 



Alestes intermedins. 

 Type (P. Z. S. 1903). f . 



width ^ length of head ; maxillary not extending quite to below anterior 

 border of eye; 14 teeth (g) in upper jaw, 10 (|) in lower; length of 

 lower border of second suborbital less than diameter of eye. Gill- 

 rakers moderately elongate, 12-13 on lower part of anterior arch. 

 Dorsal II 8, above base of ventrals, originating a little nearer end of 



