CLAEIAS. 



259 



on both sides, § or £ the length of the fin. Ventrals much nearer 

 end of snout than caudal. Caudal nearly § length of head. Olive- 

 brown. 



Total length 220 millim. 



Sierra Leone, Liberia, S. Cameroon, Benito River. — Types in Leyden 

 Museum. 



1. Ad. Sierra Leone. 



2, 3. Ad. & hgr. Efulen, S. Cameroon. G. L. Bates, Esq. (C). 

 4. Skel. „ „ „ 



5-6. Ad. Benito R. „ 



27. CLARIAS PACHYNEMA. 



Boulong. Ann. & Mag. N. II. (7) xii. 1903, p. 438, and Proc. Zool. Soc. 11)07, 

 p. 1086, fig. 



Pig. 215. 



Clarias pachynema. 

 Type (P. Z. S. 1907). 



Depth of body 6^ to 7 times in total length, length of head 

 4| to 5 times. Head If to 1^ times as long as broad, 

 smooth or very feebly granulate ; occipital process acutely pointed ; 

 frontal fontanelle sole-shaped, about twice as long as broad ; occipital 

 fontanelle smaller, in advance of occipital process ; eye very small, 3 to 4 

 times in length of snout, 6 times in interorbital width, which equals 

 about f length of head and exceeds width of mouth ; band of prse- 

 maxillary teeth 2| to 3 times as long as broad ; vomerine teeth conical, 

 forming a short curved band which, in the middle, is as broad as the 

 pnemaxillary band ; barbels thick and papillose at the base ; nasal 



s2 



