1907.] AFRICAN SILUFaD FISHES. 1077" 



and I as distant from root of caudal as from end of snout. Caudal 

 fin ^ length of head. Dark olive-broAvn above, whitish beneath. 



Total length 550 millim. 



Natal. 



In addition to a specimen from Pietermaritzburg, I have 

 examined the type in the Paris Museum, a stuffed specimen 

 stated to be from the Cape of Good Hope. 



11. ClARIAS PLATYCEPHALUS. 



Boulenger, Ann. Mus. Congo, Zool. ii. 1902, p. 35, pi. x. 

 fig. 1. 



Depth of body 6 to 6| times in total length, length of head 3| to 4 

 times. Head once and | as long as broad, feebly granulate above; 

 occipital process obtusely pointed ; frontal fontanelle sole-shaped, 

 i to 5: length of head ; occi]3ital fontanelle smaller, in advance of 

 occipital process ; eye very small, 4 times in length of snout, 

 7k to 8 times in interorbital width, which equals width of mouth 

 and ir length of head ; band of prjemaxillary teeth 5 times as long 

 as bi'oad ; vomerine teeth conical, forming a crescentic band which 

 is as broad as the prsemaxillary band ; nasal barbel f to | length of 

 head ; maxillary barbel once and i as long as head, extending 

 beyond extremity of pectoral fin ; outer mandibular barbel as long- 

 as head, inner |-to |. Gill-rakers few and wide apart, 1 2 on anterior 

 arch. Clavicles hidden under the skin. Dorsal 65-70, its dis- 

 taxice from occipital pi-ocess | length of head, its distance from 

 caudal greater than diameter of eye. Anal 56-62, narrowly 

 separated from caudal. Pectoral ^ length of head, the spine 

 smooth and f the length of the fin. Ventral a little nearer end of 

 snout than root of caudal. Caudal \ length of head. Dark brown 

 above, brownish white beneath ; anal with a light edge ; caudal 

 with dark bars. 



Total length 340 millim. 



Upper Congo ; Kribi River, South Cameroon. 



12. Clarias carsonii. 



Boulenger, Ann. & Mag. N. H. (7) xii. 1903, p. 362, and 

 Fish. Nile, p. 294, pi. liii. fig. 1 (1907). 

 Depth of body 6^ to 9| times in total length, length of head 

 4-1- to 5 times. Head l-l- to I5 times as long as broad, smooth ; 

 occipital process angular, not longer than broad ; frontal fontanelle 

 sole-shaj^ed or knife-shaped, 2^ to 3 times as long as broad, 4 or 

 5 times in length of head ; occipital fontanelle small, in advance 

 of or encroaching a little on occipital process ; eye 3 to 5 times in 

 length of snout, 6 to 8§ times in interorbital width ; width of 

 mouth a little less than interorbital width ; band of praemaxillary 

 teeth 3| to 5 times as long as broad ; vomerine teeth conical, some 

 very obtusely, forming a crescentic band which is about as broad 

 as the prfemaxillary band ; nasal barbel -|- to -f length of head ; 

 maxillary barbel f to | length of head, not reaching or reaching; 



