DIST1CH0DUS. 261 



2. DISTICHODUS ALTUS. 



Bouleng. Ann. Mus. Congo, Zool. i. p. 80, pi. xxxv. fig. 1 (1899), and Poiss. Buss. 

 Congo, p. 188 (1901) ; Pellegr. Bull. Mus. Paris, 190-1, p. 311. 



Depth of body 2 to 2-§- times in total length, length of head 4 to i\ 

 times. Head a little deeper thau long, twice as long as broad ; snout 

 broad, truncate, as long as or a little longer than eye, 3 times in length 

 of head; interorbital width half length of head, \\ to nearly 2 times 

 diameter of eye ; maxillary extending to below nostrils ; teeth in two 

 series in each jaw, outer series containing 18-22 teeth. Dorsal 17-18 



Fig. 198. 



W ' 



'5» y ' 



Dietichodus alius. 

 Type (A. M. C). |. 



(4 unbranchcd), equally distant from eye and from caudal, its base 

 equalling its distance from the small adipose fin. Anal 21-22 

 (3 unbranched), nearly entirely covered with scales, its base as long as 

 that of dorsal. Pectoral f to ^ length of head. Caudal forked, with 

 rounded lobes. Caudal peduncle a little deeper than long. Scales 

 40-42 yryrp 9 between lateral line and root of ventral. Bronzy brown, 

 each scale with a golden spot ; lower surface of head and pectoral 

 region whitish ; fins blackish grey, caudal edged with pink. 

 Total length 180 millim. 



