318 CICHLID-E. 



border of eye; prcemaxillary processes very long, extending to between 

 the eyes ; teeth small, in 2 or 3 series ; 5 or 6 series of scales on the 

 cheek, width of scaly part nearly equal to diameter of eye. Gill-rakers 

 moderately long, 10 to 13 on lower part of anterior arch. Dorsal XIV- 

 XV 13-15; spines subequal from the sixth, | to f length of head; 

 longest soft rays \ to f length of head. Anal III 8-10 ; third spine as 

 long as or shorter than longest dorsals. Pectoral § to f- length of head, 

 extending to vertical of origin of anal. Ventral reaching anal. Caudal 

 rounded. Caudal peduncle not or but scarcely longer than deep. 

 Scales cycloid or indistinctly denticulate, 34-36 pEit ; lateral lines 

 j2-i§- Brown, with or without distinct dark vertical bars ; a black 

 opercular spot ; dorsal and caudal fins, sometimes also anal, chequered 

 with black and white, or with black spots confluent into streaks. 



Total length 330 millim. 



Lake Mweru and Luapula River. — Type in Congo Museum, Tervueren. 



1-5. Ad. & hgr. L. Mweru at Lukonzolwa. Dr. L. Stappers (C ). 



6. Skel. „ „ ,, 



7. Hgr. ,, at Pakalulwa. ,, 



8. Hgr. „ south of Kilwa. „ 

 D-10. Ad. & yg. Luapula R. at Kasenga. ., 



4. PARATILAPIA GESTRI. 

 Bouleng. Ann. Mus. Genova, (3) v. 1911, p. 67, pi. i. fig. 3. 



Depth of body 2§ to 2|- times in total length, length of head 3 times. 

 Head twice as long as broad; snout rounded, broader than long, with 

 rather convex upper profile, 1^ to 1^ times as long as eye, which is 

 4 times in length of head, 1^ to 1^- times in interorbital width, and 

 exceeds least depth of prseorbital ; jaws equal in front ; lips thick ; 

 praemaxillary processes extending to between eyes ; mouth extending to 

 below anterior border or anterior fourth of eye ; teeth small, conical, in 

 3 series, 40 to 60 in outer row of upper jaw; 3 or 4 series of scales on 

 the cheek, width of scaly part equal to diameter of eye. Gill-rakers 

 rather short, 8 or 9 on lower part of anterior arch, the longest bifid. 

 Dorsal XV-XVI 9-10 ; spines equal in length from the seventh, which 

 measures J- length of head ; longest soft rays J to f length of head. 

 Anal III 8-9 ; third spine longest, as long as and stronger than longest 

 dorsal. Pectoral nearly as long as head, reaching or not vertical of 

 origin of anal. Ventral reaching vent. Caudal rounded. Caudal 

 peduncle as long as deep. Scales feebly denticulate, 32 ^ ; lateral 



