244 SILURID.E. 



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

 which is about as broad as the praemaxillary band ; nasal barbel f to f- 

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

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

 of inner, which measures ^ to § 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 fin. Ventral If 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 (C). 



R. B. Woosnam, Esq. (C.) ; 

 Ruwenzori Expedition. 



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

 Col.DekneRadcliffe(P.). 



Mr. E. Degen (C). 



Dr. C. Christy (P.). 



14. CLARLAS POENSIS. 

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



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

 Head If 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 praemaxillary teeth 4 times as 

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

 narrower than the prsemaxillary band ; nasal barbel about f length 

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

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



1. Type. 



Fwambo, Brit. C. Africa. 



2-3. Hgr. 



L. Nyassa. 



4. Ad. 



Fort Portal, E. of Ruwenzori. 



5-14. Ad., hgr., 



L. Victoria. 



&JS- 





15. Skel. 



55 



10-17. Ad. & hgr. 



Bunjako, L. Victoria. 



18. Hgr. 



Munyongo, ,, 



19-28. Ad., hgr., 



Mabira Forest, Chagwe, W. of 



& yg. 



Ripon Falls. 



