The Freshwater Fishes of South Africa. 341 



One specimen, 121 mm. in length, from Malalane, Transvaal ; 

 Eev. Eogers. 



Numerous specimens from the Sabi Eiver, Transvaal. 



It is also reported from the Congo and Rovuma to the Quanza 

 and Limpopo Rivers. 



ALESTES LATERALIS, Blgr. 



Alestes lateralis, Bouleng., Ann. Mus. Congo, Zool., i., p. 130, 

 pi. xlviii., fig. 2 (1900), and Poiss. Bass. Congo, p. 153, 1901, and 

 Cat. Fresh. Fish. Africa, i., p. 204 (1909). 



Teeth, 16 in upper jaw (), 10 in lower (f). Depth of body a little 

 more than 3^ times in total length excluding caudal, length of head 

 4^ times. Head If times as long as deep, \ as broad as deep; 



iSa, 



| 

 FIG. 14. Alettes Idtpralis. *.. 



5 



upper profile straight; snout 3y times m length of head, lower jaw 

 projecting beyond upper ; diameter of eye 3^ times in length of 

 head and 1^ times in interorbital width, adipose lid feebly 

 developed; length of lower border of 2nd suborbital about equals 

 diameter of eye ; maxillary reaches to vertical of nostrils. Gill- 

 rakers long and closely set, about 25 on lower part of anterior arch. 

 Dorsal ii 8 ; originates above origin of ventral and is slightly 

 nearer to base of caudal than to point of snout ; longest ray about 

 equals length of head. Anal iii 16. Pectoral nearly T 9 <j length of 

 head, does not reach to ventral. Caudal forked, with pointed lobes ; 

 caudal peduncle If times as long as deep. Scales, with a tubular 

 canal crossing them lengthways, on the back the scales have 

 radiating canals, 33|f ; 2^ rows of scales between lateral line and 



base of ventrals, 12 rows round caudal peduncle. 



Colour (of preserved specimen), dark above, silvery below; with 

 a dark lateral band from head extending on to middle rays of caudal 



