1898.] OP THE FAMILY MOBMYBIDiE. 799 



length of bead ; teeth small, notched, 7 in the upper jaw, 8 in the 

 lower; anterior nostril on a line with centre of eye, halfway 

 between latter and end of snout ; posterior nostril close to eye, 

 near its lower border ; eye moderate, as long as snout, about | 

 interorbital width. Dorsal 17-22, originating above 3rd or 4tli 

 ray of anal, its length g its distance from head. Anal 20-24, 

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

 Pectoral pointed, as long as head, nearly 2| as long as ventral, 

 extending almost as far as extremity of latter. Caudal with 

 pointed lobes. Caudal peduncle 2| to 3 times as long as deep, 

 a little shorter than head. 53-60 scales in the lateral line, -^y in a 

 transverse line on the body, ^^ in a transverse line between 

 dorsal and anal, 16 round caudal peduncle. Silvery. 



Total length 90 millim. 



Nile. 



5. Stomatorhinus. 



Stomatorhinus^ Bouleng. Ann. Mus. Congo, Zool. i. 1898, p. 9. 



Teeth in the jaws bicuspid, few (7-10 in the upper jaw, 8-10 

 in the lower) ; minute conical teeth on the parasphenoid and 

 ou the tongue ; mouth inferior, considei'ably in advance of the 

 eyes. Nostrils widely separated, superposed, the lower close to 

 the mouth. Body short ; ventrals nearer pectorals than anal. 

 Dorsal and anal subequal in length. Vertebrae 39 (14 + 25). 



1. Stomatorhinus walkeei. 



Mormyrus walkeri, Giinth. Aun. & Mag. N. H. (3) xx. 1867, 

 p. 116, pi. iii. fig. C. 



Petroce^jJialus affinis, Sauvage, Bull. Soc. Philom. (7) iii. 1878, 

 p. 101. 



Mormyrus affinis, Sauvage, N. Arch. Mus. (2) iii. 1880, p. 52, pi. ii. 

 fig. 2 ; Giinth. Ann. & Mag. N. H. (6) xvii. 1896, p. 283. 



StomatorJiinas walkeri, Bouleng. Ann. Mus. Congo, Zool. i. 

 1898, p. 9. 



Depth of body 3g to 3| times in total length, length of head 3|. 

 Head 1^ as long as deep ; snout rounded, ^ length of head ; 

 mouth small, its width i length of head ; 10 teeth in either 

 jaw ; eye moderate, | length of snout, g 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, originating a little in advance of dorsal. Pectoral pointed, 

 about § length of head, 1| length of ventral, extending beyond 

 base of latter. Caudal with rounded lobes. Caudal peduncle 

 2g as long as deep, | length of head. 50-53 scales in the lateral 

 line, il^ in a transverse line on the body, jj in a transverse line 

 between dorsal and anal, 16 round caudal peduncle. Brown. 



Total length 90 millim. 



Ogowe. 



