50 MORMTEID.^. 



PHTOcephalus sauvagii, Bouleng. Proc. Zool. Soc. 1898, p. 788, and Poiss. Bass. 

 Congo, p. 70 (1901). 

 Depth of body 2f to 31 times in total length, length of head 3f 

 to 4 times. Head as long as deep, with straight, feebly declivous upper 

 profile ; snout very short, ^ to i length of head, obliquely truncate, 

 projecting beyond mouth ; mouth situated below anterior border of the 

 eye, its width f or f length of head; teeth bicuspid, 20-2C in upper 

 jaw, 28-30 in lower ; eye large, its diameter greater than length of snout, 

 equal to interorbital width. Dorsal 28-31, originating above 4th to 7th 

 ray of anal, its length a little more than half its distance from head. 

 Anal 35-38, equally distant from base of ventral and base of caudal, or 



Fig. 35. 



Petroceplialus sauvac/il. 

 Type. f. 



slightly nearer latter. Pectoral pointed, about f to f length of head, 

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

 scaled at the base, with pointed lobes. Caudal peduncle 3 times as long 



Q_1 O 



as deep, f to § length of head. 40-46 scales in lateral line, y^_^ in 



transverse series on body, -fQZi2 "^ transverse series between dorsal and 

 anal, 12 round caudal peduncle. Plumbeous above, silvery white below ; 

 a round blackish spot sometimes present below origin of dorsal. 



Total length 190 millim. 



Lower Congo, Old Calabar. 



Lower Congo. 

 Loango, Lower Congo. 

 Boina, 



1. Type. 



2. Ad. 



3. Ad. 



4. Skel. 



5. Hgr. 



M. F. Hens (C). 

 M. De Meuse (C). 

 M. P. Delhez (C). 



Matadi, 



Capt. Wilvenh (C). 



