1088 MR. G. A. BOULENGER ON [DeC. 10, 



nasal | to | length of head, maxillary 1| to f times, outer mandi- 

 bular once, inner mandibular |. Gill-rakers few, 15 to 20 on first 

 arch. Clavicles concealed under the skin. Dorsal fin 79-87, its 

 distance from occipital process | to | length of head. Anal fin 

 68-78. Dorsal and anal fins extending almost to the very root of 

 the caudal. Pectoral fin f to | length of head, the spine feebly 

 serrated on the outer side and f to | the length of the fin. 

 Yentral fin 1| to 1| times as far from caudal as from end of 

 snout. Caudal fin j to § length of head. Uniform dark brown 

 above, light brown beneath, in spii'it. 



Total length 270 millim. 



Gold Coast, Cameroon. 



Type (U.S. Nat. Mus.) examined. 



28. Clarias buettikoferi. 



Steindaclmer, K"otes Leyd. Mus. xvi. 1894, p. 53. 



Depth of body 6 times in total length, length of head 4 times. 

 Head nearly 1^ as long as broad, nearly smooth above ; occipital 

 process jjointed ; eye very small, about 6 times in interorbital 

 width, which is a little more than k length of head ; width of 

 mouth ^ length of head ; vomerine teeth obtusely conical, forming 

 a crescentic band which, in the middle, is as broad as the prpe- 

 maxillary band ; nasal barbel reaching middle of pectoral ; 

 maxillary barbel extending a little beyond end of pectoral. 

 Dorsal 55, anal 50, the last ray completely adnate to the caudal. 

 Pectoral a little more than | length of head ; sj^ine short, serrated 

 on the inner edge only. Dark reddish brown. 



Total length 155 millim. 



Liberia. 



Only known to me from the description quoted above. The 

 type specimen, I am informed by Mile. Dr. Popta, is not to be 

 found in the Leyden Museum, which is supposed to contain the 

 tyj)es of the fishes discovered by Dr. Biittikofer. 



29. Clarias amplexicauda. 



Boulenger, Ann. Mus. Congo, Zool. ii. 1902. p. 36, pi. x. 

 fig. 2. 

 Depth of body 7 times in total length, length of head 5 times. 

 Head once and ^ as long as broad, smooth ; occipital process very 

 short and forming a very open angle ; frontal fontanelle sole- 

 shaped, ^ length of head ; occipital fontanelle smaller, in advance 

 of occipital jDrocess ; eye j length of snout, | interorbital width, 

 which is a little less than ^ length of head and equals width of 

 mouth ; band of prfemaxillary teeth 4 times as long as broad ; 

 vomerine teeth conical, forming a crescentic band w^hich is as 

 broad as the preemaxillary band ; nasal barbel |- length of head*. 



* The other barbels are mutilated in the single known specimen. 



