352 



Annals of the South African Nitseum. 



set obtuse papillae ; a minute barbel, hidden in folds at side of 

 mouth. 



Dorsal iii 10 ; with strongly notched upper border, equally distant 

 from nostril or end of snout and from caudal ; longest ray equal to 

 or exceeding length of head. Anal ii 5 ; longest ray nearly as long 

 as the head and reaching root of caudal. Pectoral as long as head, 

 not reaching ventral. Ventral nearly reaching vent, 1st ray falling 





FIG. 21. Labeo darlingi. 



under 7th of dorsal. Caudal deeply forked; caudal peduncle scarcely 

 longer than deep. Scales 36-39 ^|, 4-5 between lateral line and root 

 of ventral, 16-20 round caudal peduncle. 



Colour, olive- brown above, whitish beneath ; fins dark. 



Total length 160 mm. 



Habitat : Southern Ehodesia (Mazoe River) and Limpopo (Olifants 

 Eiver) Systems." 



5. LABEO PAKVULUS, n. sp. 



Body compressed, its depth 4 times in total length excluding caudal, 

 length of head 3^ times. Width of head f its length ; snout swollen, 

 prominent, projecting beyond mouth, 2^- times in length of head ; 

 eye 4^ times in length of head, supero-lateral, a little nearer to gill- 

 opening than to point of snout, If times in interorbital width ; width 

 of mouth, with lips, twice in length of head ; upper lip with feeble 

 denticulations, inner surface with feeble transverse plicae ; lower lip 

 with a row of papillae on upper border, posterior border festooned ; 

 rostral flap detached at sides, feebly denticulated ; anterior nostril 

 with a flap. A single barbel on each side, -^ diameter of eye, more 

 or less concealed under folds of skin. A deep, curved, transverse 



