CLARIAS. 



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 



Fig. 203. 



Clarias poensis. 



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



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

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

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



Total length 285 millim. 



Fernando Po. 

 I . Type. Fernando Po. Mr. E. Seimund (G ). 



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 \\ times as long as broad, smooth ; occipital process 

 pointed ; frontal fontanelle knife-shaped, 2J 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 preemaxillary teeth 4-| or 5 times as long as broad ; vomerine teeth 



