PEOCATOPUS. 



79 



1. PROCATOPUS NOTOTiENIA. 

 Bouleng. 1. c. 



^^ Body very strongly compressed, its depth equal to length of head and 

 3 to 3i times in total length ; upper surface of head and anterior part 

 of back quite flat. Snout as long as eye, the diameter of which is 

 3 to 31 times in length of head; mouth directed upwards, lower jaw 

 projecting; interoibital width not quite half length of head; a long 

 pointed Heshy process below the gill-cover, directed backwards. Dorsa^l 

 9-11, originating at equal distance from occiput and from root of caudal 

 and above middle of base of anal ; posterior ray longest, f to | length 

 of head. Anal 14-17, longest rays, in third fourth, as long as head°or 

 a little shorter. Pectoral about f length of head. Ventral at least as 



K.V. G6. 



Procatopus notoUenia. 

 Type. 



long as head, outer ray produced into a filament. Caudal truncate, 

 as long as head. Caudal peduncle as long as deep. 25-28 scales in 

 a longitudinal series, 7 or 8 in a transverse series; no lateral line; 

 expo.«ed surface of scales regularly hexagonal, more than twice as deep 

 as long on the middle lateral series. Pale yellowish olive above, 

 yellowish white beneath ; a bright yellow streak on each side of the 

 back, from behind the superciliary edge to the base of the caudal fin, 

 bordering the dorsal fin ; an orange streak on the middle of the back, 

 from the occiput to the origin of the dorsal fin ; fins greyish, anal and 

 caudal tinged with yellow at the base. 



Total length 48 millim. 

 Cameroon to Lower Niger. 



1-15. Types. 



16-19. Ad. 

 20-29. Ad. & 



hgr. 

 30,31. Skds. 



Tributary of Lobi E., S. 



Cameroon. 

 Kribi R., S. Cameroon. 

 Cross R. district. Old Calabar. 



G. L. Bates, Esq. (C.). 



Major W. A. C. Cockbiu-n (P.). 



