GNATHONEMUS. 107 



from base of caudal. Pectoral a little shorter than head, If times 

 length of ventral, extending a little beyond base of latter. Caudal 

 scaled in its basal half, with pointed lobes. Caudal peduncle nearly 

 4 times as long as deep, as long as head. 84-85 scales in lateral line, 

 25 in transverse series on body, j^ in transverse series between dorsal and 

 anal, 12 round caudal peduncle. Silvery, with fine brown dots, which 

 are very crowded on the head and the dorsal and ventral lines. 



rig. 86. 







Gnatlionemus mento. 

 Type. |. 



Total length 190 millim. 

 Gaboon, Liberia. 

 1. Tvpe. Gaboon. 



U. GNATHONEMUS STANLEY AK US. 

 Mormyrm stanleyanm, Bouleng. Ann. & Maft-. N. H. (6) xx. 1897, p. 26fi. 

 Gnathonemns stanleyanus, Bouleng. Proc. Zool. Sec. 1898, p. 806, and Poiss. Bass. 



Congo, p. 97 (1901). 

 Gnathonemns senegalensi^ (non Steind.), Bonleng. Proc. Zool. Soc. 1900, p. 512. 



Depth of body 3^ to 4| times in total length, length of head 44 to 

 5 times. Head not or but slightly longer than deep, with feebly curved, 

 declivous upper profile ; snout f to f length of head ; teeth conical or 

 truncate, 5 or 7 in upper jaw, 6 in lower ; a globular mental appendage, 

 as long as eye or a little shorter ; eye about | length of snout, 3 to 1 

 interorbital width. Dorsal 28-32, originating above 7th to 13th ray ot 

 anal, i to | its distance from head. Anal 35-40, nearer base of caudal 

 than base of ventral. Pectoral pointed, nearly as long as head about 

 twice as long as ventral, extending beyond base of latter. Caudal partly 



