244. SILURHLE. 



vomerine teeth conical, some very obtusely, forming a crescentic band 

 which is about as broad as the prsemaxillary band ; nasal barbel |- to -§■ 

 length of head ; maxillary barbel f- to f length of head, not reaching or 

 reaching gill-opening; outer mandibular barbel 1^ to 1^ times length 

 of inner, which measures 5 to f length of head. Gill-rakers few and 

 wide apart, 10 or 11 on anterior arch. Clavicles hidden under the 

 skin. Dorsal 65-78, its distance from occipital process f to -f length of 

 head, its distance from caudal equal to one or two diameters of eye. 

 Anal 57-64, nearly touching caudal. Pectoral about \ length of head, 

 the spine very indistinctly serrated and measuring about § the length of 

 the fm. Ventral 1^ to If times as distant from caudal as from end of 

 snout. Caudal \ as long as head. Dark brown above, lighter brown 

 beneath. 



Total length 285 millim. 



Lake Nyassa to Uganda. 



A. Carson, Esq. (P.). 



Dr. W.A. Cunnington (0.). 



R. B. Woosnnm, Esq. (0.) ; 



Rmvenzori Expedition. 

 Mr. W. G. Doggett (0.) ; 



Col.DelmeRadcliffe(P.). 



Mr. E. Degen (C). 



11 

 Dr. C. Christy (P.). 



14. CLARIAS POENSIS. 

 Bouleng. Proc. Zool. Soc. 1907, p. 1078, fig. 



Depth of body 8£ times in total length, length of head 4^ times. 

 Head \\ times as long as broad, smooth; occipital process acutely 

 pointed, as long as broad ; frontal and occipital fontanelles very small, 

 the latter in advance of occipital process; eye very small, 3 times 

 in length of snout, 7 times in interorbital width, which equals width of 

 mouth and \ length of head ; band of prsemaxillary teeth 4 times as 

 long as broad ; vomerine teeth conical, forming a curved band which is 

 narrower than the praomaxillary band; nasal barbel about f length 

 of head, maxillary f length of head and reaching a little beyond base of 

 pectoral, outer mandibular f, inner mandibular % length of head. 



