TILAPIA . 



■2{)rj 



Dorsal XMI-XMl I 9-10 ; spines subequal from the fifth, f to i lengtli 

 of head. Anal III 7 ; third spine a little longer than longest dorsal, 

 Pectoral | length of head, not reaching vertical of origin of anal, 

 ^'antral not reaching vent. Caudal rounded, feebly emarginate, covered 



Fiff. 130. 



Tilapia hilineata. 

 T3'pe, after Pellegrin (Mem. Soc. Zool. Prance, 1904). f . 



with scales. Caudal peduncle slightly deeper than long. Scales cycloid, 

 30-32 ^^ ; lateral lines " y)^'^ - Brown above, yellowish beneath; two 

 black lateral bands, corresponding to the two lateral lines. 



Total length 180 millim. 



Alima R., U[)per Congo. — Types, in Paris Museum, examined. 



40. TILAPIA CRASSA, 

 Pellegr. Bull. Miis. Paris, 1903, p. 120, and Mciiii. Soc. Zool. Franco, xvi. 1904, 

 p. 324, fio-. 

 Depth of body twice in total length, length of head 3 times. Snout 



Fig. 131. 



Tilapia crassa. 

 Type, after Pellegrin (Mem. Soc. Zool. France, 1904). J. 



with slio-htjy concave upper profile, as long as eye, a little longer than 



