100 



NANDID^. 



1. POLYCENTROPSIS ABBREVIATA. 

 Bouleng. 1. c. pi. iii. fig. 2 ; Pellegr. Bull. Soc. Philom. (9) ix. 1907, p. 34. 



Depth of body twice iu total length, length of head 2f to 2J times. 

 Snout acutely pointed, chin projecting ; eye as long as or a little longer 

 than snout or interorbital width, nearly 3 to 3^ times in length of head ; 

 maxillary extending to below centre or posterior third of eye ; 6 to 9 

 series of scales on the cheek. 9 to 11 gill-rakers on lower part of 

 anterior arch, shorter than gill-laminae. Dorsal XV-XVII 9-11 ; spines 

 increasing in length to the fourth or fifth and decreasing from the 

 seventh or eighth, longest -J length of head and a little longer than soft 

 rays. Anal IX-XII 8-9. Pectoral ^ length of head. Ventral longer, 

 produced into a filament, extending beyond origin of anal. Caudal 



Polyeentropsis abbreviata. 

 Type (P. Z. S. 1901). 



truncate. Caudal peduncle extremely short. Scales 31-35 j^zig; lateral 

 line 4-6. Pinkish brown, uniform or marbled with darker ; spinous 

 dorsal and anal dark brown, Avith darker and lighter spots and edged 

 with black ; ventrals blackish ; soft dorsal and anal, and caudal white, 

 blackish, edged with pink, at the base. 



Total length 80 millim. 



Lagos, I^iger, Ogowe. 



1. Type. 



Mouth of Ethiop R., Niger 

 Delta. 



Dr. W. J. Ansorge(C.). 



