The Freshwater Fishes of South Africa. 



361 



Body strongly compressed, its depth 3^ to 4^ times in total length 

 excluding caudal, length of head 4 to 5 times. Head If to If times 

 as long as broad ; depressed, often very markedly so in larger speci- 

 mens, the nape rising in a sharp curve ; snout rounded, prominent, 

 about equal to or slightly longer than postocular portion of head ; 

 eye lateral, 6 to 8 times in length of head ; interorbital width i to f 

 length of head ; width of mouth, with lips, ^ to ^ length of head ; 

 lips moderately developed, fringed with rounded or conical papillae 

 and with transverse plicae on inner surface ; rostral flap more or less 

 fringed; two barbels on each side, equal or unequal in length, the 

 longest about equal to diameter of eye. 



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iS* 



FKI. '20. L<il>m} ciijtcnsis. >-. 



Dorsal iii-iv 10-11 ; about equidistant between eye and base of 

 caudal, upper edge concave, longest branched ray from a little less 

 to a little longer than head. Anal iii 5 ; reaching or nearly reaching 

 to base of caudal. Pectoral ^ to the same length as head, not 

 reaching to ventral which is inserted below middle or posterior half 

 of dorsal. Caudal forked, with long pointed lobes ; caudal peduncle 

 1-} to 1 & as long as deep. Scales 44-48, lat. tr. j& ; 6^ to 7* rows 

 of scales between lateral line and root of ventral, 20 rows round 

 caudal peduncle. 



Colour (of preserved specimens), brown above, flesh colour on 

 belly. 



Four specimens, ranging from 178-218 mm. in length, from Zak 

 Eiver, Fraserburg, Cape Province (Mr. Jacobs). 



