CLAEIAS. 



249 



70-80, its distance from occipital process f to \ length of head, separated 

 from caudal by an interspace at least as great as diameter of eye. 

 Anal 52-60, narrowly separated from caudal. Pectoral \ to f length of 



Fig. 206. 



Clarias walkeri. 

 Type, f 



head, the spine feebly serrated on both 

 sides, f the length of the fin. Ventrals 



If 



to 



If times as distant from base 



of caudal as from end of snout. Caudal about \ to f- length of 

 head. Dark brown above, whitish beneath ; dorsal and anal with a 

 lighter edge. 



Total length 290 millim. 

 South Cameroon to Ogowe. 



1. Type. 



2-3, 4-5. Ad. & bgr. 



6. Ad. 



7-9. Hgr. & yg. 

 10. Ad. 



11-14. Ad., hgr.,&yg. 

 15. Hgr. 

 16-17. Hgr. & yg. 



Ogowe. 



Sette Cama, Gaboon. 



Gaboon. 



Corisco Id. 



Benito R. 



Kribi R., S. Cameroon. 



Zima County, ,, 



Ja R., ,, 



Miss Kingsley (0.). 



Miss Kingsley (C.) . 

 G. L. Bates, Esq. (C). 



19. CLARIAS LONGIOR. 

 Bouleng. Ann. & Mag. N. H. (7) xx. 1907, p. 51, and Proc. Zool. Soc. 1907, 

 p. 1081, fig. 



Depth of body 8 to 9 times in total length, length of head 5 to 5J 

 times. Head extremely depressed, 1 \ times as long as broad, smooth ; 

 occipital process very short, pointed ; frontal fontanelle knife-shaped, 

 about 3 times as long as broad ; occipital fontanelle smaller, in advance 

 of occipital process ; eye very small, 2| times in length of snout, 5 

 or 5| times in interorbital width, which equals width of mouth and 

 \ length of head ; band of praemaxillary teeth 4 times as long as broad ; 



