II 1 



Anna I a of the South African Museum. 



4 times as long as broad; vomerine teeth granular, forming a 

 crescentic band which, in the middle, is li to If times as broad as 

 the premaxillary band ; anterior mandibular teeth pointed, posterior 

 granular. Nasal barbel about f length of head, maxillary T % and 

 reaching posterior half of pectoral spine, outer mandibular barbel 

 -fo length of head, inner to T V Gill-rakers long, 16 to 20 on lower 

 part of anterior arch. Clavicles striated, more or less distinct under 

 the skin. 



Dorsal 60 (circa) ; its distance from occipital process length of 

 head, its distance from caudal fin ^ to f . Anal 50 (circa) ; narrowly 

 separated from caudal. Pectoral length of head, its spine strongly 

 serrated on the outer border and f to ^ length of fin. Ventral 

 equally distant from end of snout and base of caudal or a little 

 nearer to the former. Caudal a little more than f length of head. 



Colour (of preserved specimens), uniform dark brown above, 

 yellowish beneath, under side of head white. 



Two specimens, 108 mm., 101 mm. in length respectively, from 

 N.W. Ehodesia (Eev. F. A. Eogers and E. C. Chubb). 



The species is also reported from the Lake Ngami Basin. 



4. CLARIAS CAPENSIS, C. and V. 



Cuv. and Val., Hist. Poiss., xv., p. 377 (1840) ; Bouleng., Poiss. Bass. 

 Congo, p. 255 (1901) ; Proc. Zool. Soc., 1907, p. 1075, Ann. 

 Natal Mus., i., 1908, p. 237, and Cat. Fresh. Fish. Afr. ii, 

 p. 240 (1911). 



FIG. 98. Glorias capensis. ;}. 



Depth of body 8 times in total length excluding caudal, length of 

 head 3f times. Head 1| times as long as broad, its upper surface 

 coarsely granulate, occipital process angular; frontal fontanelle 

 3 times as long as broad, 1 length of head ; occipital fontanelle 

 very small, well in advance of occipital process; eye very small, its 

 diameter 3f times in length of snout, 5J. times in interorbital width, 



