ALESTES. 



197 



87-88. Hgr. 



89. Ad. 



90. Ad. 

 91-92. Yg. 



Gambia. 



Jebba, Upper Niger. 



Sir A. Moloney (P.). 

 J. S. Budgett, Esq. (P.). 

 Capt. G. F. Abadie (P.). 

 Dr. G. Christy (P.). 



3. ALESTES MACROPHTHALMUS. 

 Giinth. Ann. & Mag. N. H. (3) xx. 1867, p. 113 ; Boulenger, Tr. Zool. Soc. xv. 

 1898, p. 25 ; Pellegr. Bull. Mus. Pari^ 1900, p. 177 ; Boulenger, Poiss. Bass. 

 Congo, p. 151 (1901). 



Depth of body 3^ to 4-| times in total length, length of head 4-g; to 

 5 times. Head 2 to 2|- times as long as broad, 1^ to 1^ as long as deep ; 

 snout as long as or a little shorter than eye, which is lateral and 3 to 3|- 

 times in length of head ; adipose eyelid well developed ; interorbital 

 region convex, its width 3 to o^ times in length of head ; maxillary not 



Fig. 148. 



Alestes macrojihtJialii 



Type. 



extending to below anterior border of eye ; 14-18 (|-^) teeth in upper 

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

 Gill-rakers long and slender, 17-20 on lower part of anterior arch. 

 Dorsal II 8, originating above ventral, at equal distance from end of 

 snout and from caudal, longest ray equal to or a little less than length 

 of head. Anal III 17-20. Pectoral f to once length of head, not 

 reaching ventral. Caudal forked, with long pointed lobes. Caudal 

 peduncle I5 to 1^ times as long as deep. Scales without anastomosing 

 canals, 39-45 '^^, 2 between lateral line and root of ventral. Silvery, 



