The Frcshivatcr Fishes of South Africa. 



443 



Two specimens, 315 mm., 213 mm. in length respectively, from 

 Sabi Kiver, Transvaal (J. S. Hamilton). 



Two specimens, 540 mm., 470 mm. in length respectively, from 

 Manzetnntonto Kiver, Transvaal (J. S. Hamilton). 



Two specimens, 131 mm., 120 mm. in length respectively, from 

 Urnbeluzi, Swaziland (Mr. Howard). 



It is also reported from East Africa, from Abyssinia and Lake 

 Victoria to Lake Tanganyika and the Zambezi. 



3. CLARIAS NGAMENSIS, Casteln. 

 Casteln., Mem. Poiss. Air. Austr., 1861, p. 63; Bouleng., Trans. 



Zool. Soc., xviii., v., p. 404, pi. xxxviii., fig. 2 (1911). 

 Depth of body 6 to 6f times in total length excluding caudal, 

 length of head 3| to 3f times. Head H to I*- times as long as 



m 



FIG. 97. Clarias ngamensis. . 



broad, feebly granulated and showing patches of radiating striee 

 beneath the skin ; occipital process angular ; frontal fontanelle 2i to 

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

 in advance of occipital process ; eye 3 to 3J times in length of snout 

 and 4^ to 4J times in interorbital width, which equals width of 

 mouth and is ~ length of head ; band of premaxillary teeth 3| to 



