454 Annals of the South African Museum. 



Colour (of preserved specimens), uniform dark or reddish brown 

 above, whitish beneath. 



One specimen, 165 mm. in length, from Vaal Eiver, Transvaal. 



Three specimens, ranging from 104-164 mm. in length, from 

 Mooi Eiver, Transvaal (H. Fry). 



One specimen, 146 mm. in length, from Transvaal Eiver, 

 Johannesburg (H. Fry). 



One specimen, 130 mm. in length, from Kraai Eiver, Cape 

 Province. 



One specimen, 69 mm. in length, from Potchefstroom, Transvaal 

 (Mr. Stenning). 



Two specimens, 220 mm. in length, from Kafue Eiver (J. Drury). 



7. AUCHENOGLANIS. 



Auchenaspis (non Egerton), Bleek., Nederl. Tijdschr. Dierk., i., 

 1863, p. 101 ; Giinth., Cat. Fish., v., p. 137 (1864). 



Auchenoglanis, Giinth., Zool. Eec., i., p. 165 (1865) ; Bouleng., 

 Poiss. Bass. Congo, p. 294 (1901) ; Fish. Nile, p. 344 (1907), and 

 Cat. Fresh. Fish. Afr., ii., p. 366 (1911). 



Oxyglanis, Vincig., Ann. Mus. Geneva (2), xix., 1898, p. 249. 



" Body moderately elongate, feebly compressed. Dorsal and anal 

 fins short, the former composed of a spine and 7 or 8 branched rays, 

 and followed by a very long adipose fin. Pectoral fin with a spine. 

 Ventral fin with 6 rays, just behind the vertical of the dorsal fin. 

 Three pairs of barbels : maxillary and two mandibulars. Nostrils 

 widely separated from each other, the anterior tubular, on the upper 

 lip, the posterior slit-like. Eye supero-lateral, with free border. 

 Prasrnaxillaries small ; maxillaries, hidden in the lip, comparatively 

 large, bordering the mouth. Jaws with villiforrn teeth, which may 

 be reduced to small groups ; palate toothless. Gill-membranes free, 

 feebly notched. Air-bladder large, free. 



Vertebrae 43-48 (18-21 + 25-27). Nine branchiostegal rays. 

 Intestinal canal much elongate and forming numerous convolutions. 

 Nile and Tropical Africa." 



: AUCHENOGLANIS NGAMENSIS, Blgr. 

 Bouleng., Cat. Fresh. Fish. Afr., ii., p. 371, fig. 287 (1911), and Trans. 



Zool. Soc., vol. xviii., pt. v., 1911, p. 405. 



" Depth of body 5| times in total length, length of head 3^ times. 

 Head moderately depressed, 1^ times as long as broad, upper 

 surface smooth ; operculum with radiating striae ; occipital process 



