PARATILAPIA. 325 



arch. Dorsal XV 10 ; spines equal from the fourth, § length of head ; 

 longest soft ray f length of head. Anal III 7 ; third spine a little 

 shorter than longest dorsals. Pectoral a little more than § length of 

 head, not extending to vertical of origin of anal. Ventral produced 

 into a filament, reaching anal. Caudal rounded. Caudal peduncle as 



Fig. 217. 



W" ' ; ' 



/ 



Paratilapia demeusii. 

 Type (A. M. C). 



long as deep. Scales cycloid, or very indistinctly denticulate, 28 f ; 



19 



lateral lines u . Brown, lighter beneath ; a black opercular spot ; small 

 black spots on the soft dorsal and caudal fins. 



Total length 130 millim. 



Upper Congo. 

 1. Type. Bangala Country. M. Do Meuse ((!.). 



10. PARATILAPIA AFRA. 



Hemicliromis afer, Giinth. Proc. Zool. Soc. 1893, p. 626, pi. lvii. fig. B. 

 Paratilapia afra, Bouleng. Proc. Zool. Soc. 1898, p. 112 ; Pellegr. Mem. Soc. 

 Zool. Prance, xvi. 1904, p. 263. 



Depth of body nearly equal to length of head, 3 times in total length. 

 Head twice as long as broad, with curved upper profile ; snout rounded, 

 as long as broad, a little shorter than postocular part of head ; eye 

 3^ times in length of head, equal to or slightly greater than inter- 

 orbital width, exceeding praeorbital depth ; mouth not extending to 

 below anterior border of eye; teeth in 3 series, outer rather large, 



