CLAEIAS. 



245 



Gill-rakers few, 13 on anterior arch. Clavicles concealed under the 

 skin. Dorsal 76, its distance from occipital process f length of head, 

 its distance from caudal a little greater than diameter of eye. Anal 

 60, narrowly separated from caudal. Pectoral \ length of head, the 



Tig. 203. 



Clarias poensis. 

 Type -(P. Z. S. 1907). f 



spine very feebly serrated on both sides and about f- the length of the 

 fin. Ventral 1^ times as distant from base of caudal as from end oi 

 snout. Caudal J length of head. Dark brown, lighter beneath. 



Total length 285 millim. 



Fernando Po. 

 1. Type. 



Fernando Po. 



Mr. E. Seiinund (C ). 



15. CLARIAS SUBMARGINATUS. 

 Peters, Sitzb. Ges. naturf. Fr. Berl. 1882, p. 74 ; Bouleng. Proc. Zool. Soc. 1907, 

 p. 1079. 

 Depth of body 6 to 6^ times in total length, length of head 4 to 5 

 times. Head If times as long as broad, smooth ; occipital process 

 pointed ; frontal fontanelle knife-shaped, 1\ to 3 times as long as 

 broad; occipital fontanelle smaller, slightly encroaching on occipital 

 process ; eye very small, 3 times in length of snout, 7 times in inter- 

 orbital width, which equals width of mouth and \ length of head; band 

 of prremaxillary teeth i\ or 5 times as long as broad ; vomerine teeth 



