The FreshirnfiT 



<>f tiotitli Africa. 



511 



Dorsal xvi 11 ; spines weak, increasing in length to the last, which 

 is nearly \ long! h of head ; soft ra,ys slightly pi'oduced, -^~ length of 

 head. Pectoral T " length of head, not reaching anal. Ventral reach- 

 ing scarcely to vent. Anal iii 10 ; 3rd spine T 3 ^ length of head ; soft 

 rays produced as long as head. Caudal rounded-subtruncate ; caudal 

 peduncle IJ times as deep as long. Scales rugose, feebly pectinate, 

 30 |J ; lateral lines f|. 







FIG. 136. Tiiapia kirkhami. T . 



Colour (of preserved specimen), dark brown above, a little lighter 

 on the belly, scales with a dark curved bar on outer half and a white 

 outer margin ; opercular spot very indistinct ; indistinct dark cross- 

 bars on body ; faint dark spots or bars on soft dorsal, with a very 

 indistinct dark spot at base of anterior rays and a faint light tip to 

 the rays ; gill-membranes blackish. 



One specimen, 181 mm. in length, from Lake Nganii (Mr. H. F. 

 Kirkham). 



PETEOCHEOMIS. 



Bouleng., Trans. Zool. Soc., xv, 1898, p. 20, Poiss., Bass. Congo, 

 p. 479 (1901), Fish. Nile, p. 535 (1907), and Freshw. Fish. 

 Africa, iii, p. 267 (1915) ; Pellegr., Mem. Soc. Zool. France, xvi, 

 1904, p. 350. 



