1907.] 



AFRICAN STLURID FISHES. 



1087 



nasiii barbel f to 4 length of head, maxillary 1-g- to Ij times, outer 

 mandibular 1^ to 1-^ times, inner mandibular | to A. Gill-rakers 

 few, about 15 on anterior arch. Clavicles concealed under the 

 skin. Dorsal 92-95, its distance from occipital process |- to | 

 length of head. Anal 78-80. Dorsal and anal extending to 



Text-fio'. 255. 



Clarias pachynema. 



root of caudal. Pectoral | length of head, its spine feebly 

 serrated on both sides and f to | the length of the fin. Yentral 

 about once and # as distant from caudal as from end of snout. 



Caudal j length of head, 

 beneath. 



Total length 255 millim. 



Ja River, S. Cameroon. 



Dark olive-brown above, yellowish 



27. Clarias l.i:viceps. 



Gill, Proc. Ac. Philad. 1862, p. 139; Sauvage, Bull. Soc. Zool. 

 France, 1882. p. 318, pi. v. fig. 2; Boulenger, Proc. Zool. Soc. 

 1904, 1. p. 200. 



Clarias kingsleyce Giinther, Proc. Zool. Soc. 1902, ii. p. 334. 



Depth of body 8^ to 12 times in total length, length of head 

 5 to 5i times. Head 1^ to li- times as long as broad, smooth; 

 occipital process 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 to 7 times iir interorbital width, which equals | length 

 of head and a little exceeds width of mouth ; band of prse- 

 maxillary teeth 4 to 5 times as long as broad ; vomerine teeth 

 conical, forming a curved band which is as broad as or a little 

 narroAver than the prfemaxillary band ; barbels moderately thick, 



