PETEESIL^S. 



237 



8. PETERSIUS PULCHER, sp. n. 

 Depth of body 2| to 2| times in total length, length of head 3 J to 3f 

 times. Head 21 to 2i times as long as broad, with slightly concave 

 upper profile ; jaws equal in front; snout J diameter of eye, which equals 

 postorbital part of head ; interorbital width 3 times in length of head ; 

 maxillary extending to below anterior border of eye ; outer prsemaxillary 

 teeth 4, alternating with those of the inner row, 8 in number ; 8 teeth 

 in lower jaw. Gill-rakers short, 12-13 on lower part of anterior arch. 

 Dorsal II 8, originating just behind vertical of base of ventrals, at equal 

 distance from nostrils and from caudal, longest ray as long as or longer 



Fig. 180. 



Petersius pulcJier. 

 Type. 



than head. Adipose fin small. Anal III 17. Pectoral nearly as long 

 as head, reaching ventral. Caudal forked. Caudal peduncle as lonff as 



4— 



deep. Scales 24-25 y|, 2 between lateral line and ventral ; lateral line 

 incomplete, not extending beyond 6th to 9th scale. Greenish yellow on 

 the back, silvery below, tinged with orange on the caudal part of the 

 body ; a vertically oval black spot above the shoulder ; a broad black 

 band on the side of the tail, continued on median rays of caudal ; fins 

 greyish, more or less tinged with orange ; ventral fin black at the tip, 

 anal finely edged with black. 



Total length 55 millim. 



South Cameroon. 

 1-2. Types. Ja River (Congo System) at Bitye. G. L. Bates, Esq. (C), 



9. PETERSIUS MAJOR. 

 Bouleng. Ann. & Mag. N. H. (7) xii. 1903, p. 436. 



Depth of body 2J to 2^ times in total length, length of head 4 

 times. Head as long as deep, twice as long as broad, with slightly 



