340 



Annals of Llie South African Museum. 



4^ times. Head 1^ to lj~ times as long as broad, a little longer 

 than deep ; snout equal to or a little longer than diameter of eye, 

 which is lateral and 3-g- to 4 times in length of head ; adipose eyelid 

 not very strongly developed ; interorbital region slightly convex, its 

 width 2 1 to 2f times in length of head ; maxillary reaching to 

 vertical of posterior nostril ; lower border of 2nd suborbital as long 

 as or a little longer than the eye. Gill-rakers moderately long, 18 

 on lower part of anterior arch. 



Dorsal ii 8, originating above base of ventral and equally distant 

 from middle of eye and base of caudal ; longest ray % to about as 



W^& : ' i 





FIG. 13. Alestes imberi. . 



long as head. Anal ii-iii 14-16. Pectoral nearly as long as head, 

 not reaching ventral. Caudal forked ; caudal peduncle 1 to 1^ times 

 as long as deep. Scales with radiating and anastomosing canals, 



23-25 |f, 2 between lateral line and base of ventral. 

 05 



Colour (of preserved specimens), bright silvery, brownish on the 

 back ; a dark spot on caudal peduncle, sometimes extending as a 

 streak along median rays of caudal ; a fainter dark spot above lateral 

 line behind gill-openings. 



One specimen, 157 mm. in length from Bulawayo, Rhodesia. 



Two specimens 98 mm. 87 mm. in length respectively, from 

 Umniati River, Rhodesia; Mr. Mennell. Bulawayo Museum. 



