1070 MR. G. A. BOULENQER ON [DeC. 10, 



nearly as broad as or narrower than prsemaxillary band ; nasal 

 barbel ^ to ^ length of head ; maxillary barbel a little shorter 

 than head, reaching base or second third of pectoral spine ; outer 

 mandibular barbel abovit 1^ as long as inner, which measures 

 ■L to f length of head. Gill-rakers on first arch fine and close-set, 

 40 to 50 in number. Clavicles not exposed. Dorsal 68-79, 

 its distance from occipital process ^ to ^ length of head, its 

 distance from caudal greater than diameter of eye. Anal 53-60, 

 not reaching caudal. Pectoral f to 1 length of head, the spine 

 serrated on the outer border, f or | the length of the fin. 

 Yentral nearly equally distant from end of snout and from 

 caudal. Caudal about ^ length of head. Olive above, uniform 

 or marbled with dark brown, white below. 



Total length 620 millim. 



South Africa (Orange Eiver, Natal, Transvaal), Mozambique,. 

 Angola. 



3. Clarias moorii. 



Boulenger, Ann. & Mag. N. H. (7) viii. 1901, p. 13, and' 

 Fish. Mle, p. 283, pi. 1. (1907). 

 Depth of body nearly 7 times in total length, length of head 

 3i times. Head once and f as long as broad, its upper surface 

 coarsely graniilate ; occipital pi-ocess angular, a little longer than 

 broad ; frontal fontanelle knife-shaped, thrice as long as broad, 

 nearly 4 times in length of the head ; occipital fontanelle small, 

 in advance of occipital process ; eye 3^ times in length of 

 snout, 6 1 times in interorbital width ; width of the mouth 

 nearly equal to interorbital width ; band of pra^maxillary teeth 

 6 times as long as broad ; vomerine teeth mostly pointed, a few 

 in the middle granular, forming a crescentic band which is as 

 broad as the prsemaxiUary band. Nasal barbel i length of head ; 

 maxillary barbel a little more than half length of head, ex- 

 tending to root of pectoral ; outer mandibular barbel once and 

 I as long as inner, which measures nearly ^ length of head. Gill- 

 rakers long and closely set, 87 on anterior arch. Clavicles striated, 

 distinct under the thin skin. Dorsal 66, its distance from occi- 

 pital process^ -i length of head, its distance from caudal fin 3 

 times length of eye. Anal 54, separated from the caudal by a 

 distinct interspace. Pectoral fin nearly half length of head, the 

 spine serrated on the outer border and | the length of the fin. 

 Yentral a little nearer end of the snout than root of caudal. 

 Caudal about half length of head. Olive-brown above, white 

 beneath. 



Total length 590 millim. 

 Lake Albert Edward. 



4. Clarias senegalensis. 



Clarias senegalensis Cuvier & Yalenciennes, Hist. Poiss. xv. 

 p. 376 (1840) ; Steindachner, Sitzb. Ak. Wien, Ix. i. 1869, p. 978. 



