STOMATOKHINUS. 



89 



Head once and £ as long as deep ; snout rounded, projecting beyond 

 mouth, -j length of head ; mouth small, its width j length of head ; 

 10 teeth in either jaw ; eye moderate, § length of snout, ^ interorbital 

 width. Dorsal 19-20, a little more than ■§■ as long as its distance from 

 head. Anal 23-25, a little nearer base of caudal than base of ventral, 



Ym. 71. 



Stoma torhinus walkeri. 

 Type, after Gunther (Ann. & Mag. N. H. 1867). 



originating a little in advance of dorsal. Pectoral pointed, about § length 

 of head, If times length of ventral, extending beyond base of latter. 

 Caudal with rounded lobes. Caudal peduncle 2\ times as long as deep, 

 | length of head. 50-53 scales in lateral line, yjz\^ in transverse series 

 on body, ^ in transverse series between dorsal and anal, 16 round caudal 

 peduncle. Brown. 



Total length 90 millim. 



Ogowe. 



1-2. Types. Gaboon. 



3. Ad. Talagouga, Ogowe. Miss Kingsley (C). 



3. STOMATORHINUS HUMILIOR. 



Bouleng. Ann. Mus. Congo, Zool. i. p. 70, pi. xxxi. fig. i (1899), and Poiss. Bass. 

 Congo, p. 84 (1901). 



Depth of body 4^- to 5 times in total length, length of head 3f to 4 

 times. Head once and ^ as long as deep ; snout vertically truncate, 

 not extending beyond mouth, \ length of head ; mouth small, its width 

 \ length of head ; 7 teeth in upper jaw, 8 in lower ; eye small, \ length 

 of snout, \ interorbital width. Dorsal 18-19, its length a little more 

 than half its distance from head. Anal 20-22, 4th or 5th ray below 1st 

 of dorsal, equally distant from base of ventral and from base of caudal. 



