MOEMTEOPS. 



43 



densely scaled, with rounded lobes. Caudal peduncle as long as 

 deep, ^ to g- length of head. 80-90 scales in lateral line, y^ in 

 transverse series on body, 23-25 in transverse series between dorsal 

 and anal, 16-18 round caudal peduncle. Pale brown, with dark lines 

 along the series of scales. 



Total length 400 millim. 



Upper Congo. — Type in Congo Museum, Tervueren. 



1. Ad. Kutu, Lake Leopold II. M. P. Delhez (C). 



2. Yg. Ooquilhatville. 



3. Hgr. Upper Congo. Brussels University. 



13. MORMYROPS NIGRICANS. 

 Bouleng. Ann. Mus. Congo, 'Zool. i.'p. G6, pi. xxxii. fig. 2 (1899), and Poiss. Bass. 



Congo, p. 6G (1901) ; Pellegr. Bull. Soc. Pliilom. (9) ix. 1907/p. 20. 

 Mormyrops vaillanti, Pellegr. Bull. Mus. Paris, 1899, p. 358. ■ - ' 



Depth of body 5 to q\ times in total length, length of head 3f times. 

 Head 1^ to If times as long as deep, upper profile slightly concave; 

 snout rounded ; mouth terminal, its width equal to length of snout ; 

 teeth truncate, 24 to 28 in each jaw ; eye small, in anterior third of 

 head, its diameter 1\ to 3| times in length of snout or interocular 



Fig. 30. 



■JSm 



::\^i";::'y ■■■■::.: \.-y-,^:;:,:j 



■''■■■■ ^ ■"."•' -^ v ;7siP 



Mormyrops nigricans. 

 Type (A. M. C). *• 



width. Dorsal 24-25, f length of anal, its origin 3 times as distant 

 from end of snout as from root of caudal. Anal 38-41, originating 

 considerably in advance of dorsal, its origin twice as distant from end 

 of snout as from root of caudal. Pectoral rounded, J length of head. 

 Caudal small, greater part covered with scales, lobes short and rounded. 

 Caudal peduncle not or but slightly longer than deep, j to -J length of 

 head. 54-58 scales in lateral line, j^ 15 in transverse series on body, 

 14-16 in transverse series between dorsal and anal, 12 round caudal 



