PELMATOCHKOMIS. 401 



Dorsal XVI-XVII 8-9 ; spines gradually increasing in length to the 

 last, which measures ^ to f length of head ; longest soft rays shorter 

 than head. Anal III 6-7 ; third spine nearly ^ length of head. Pec- 

 toral f to f length of head. Ventral produced into a filament, reaching 

 vent or anal. Caudal rounded-subacuminate. Caudal peduncle a little 

 deeper than long. Scales cycloid, 27-29 g; lateral lines -^' Olive 

 above, whitish beneath • a blackish opercular spot ; sometimes an ill- 

 defined dark lateral stripe ; soft dorsal often with a round black spot 

 behind the last spine ; caudal sometimes with two black, light-edged 

 ocellar spots above ; outer edge of ventrals blackish. 



Total length 65 millim. 



South Cameroon. 



1-11. Types. Kribi U. G. L. Bates, Esq. (C). 



12. Skel. ,, „ 



Fin;. 271. 



Ftliaatodiroinls kribeusis. 

 Type. 



17. PELMATOCHROMIS T^NIATUS. 



Boulentv. Proc. Zool. Soc. 1901, i. p. 10, pi. iv. fig. 3 ; Pellegr. BIcm. Soc. Zool. 

 France, xvi. 1904, p. 283. 



Depth of body 3 times in total length, length of head 3^ times. 

 Head If to If times as long as broad; snout rounded, with convex 

 upper profile, broader than long, as long as the eye, which is 3^ times 

 in length of head, nearly equals interorbital width, and exceeds prte- 

 orbital depth ; mouth moderate, extending slightly beyond vertical of 

 anterior border of eye ; teeth small, in 2 or 3 series, about 60 in outer 

 series of upper jaw; 2 series of scales on the cheek, width of scaly part 

 much less than diameter of eye. Gill-rakers short, 11 on lower part of 

 anterior arch. Dorsal XVIl-XVIII 7-8 ; spines gradually increasing 

 in length to the last, which measures J length of head j longest soft rays 

 produced into filaments, as long as head. Anal III 7 ; third spine as 



