324 CICHLlDiE. 



54 in upper jaw ; 3 or 4 series of scales on the cheek, width of scaly 

 part less than diameter of eye, Gill-rakers rather long and slender, 

 11 on lower part of anterior arch. Dorsal XVI 8-10; spines equal 

 from the sixth, f to nearly J length of head ; longest soft rays J length 

 of head. Anal III 7-8 ; third spine as long as longest dorsals. Pectoral 

 J to J length of head, extending to vertical of origin of anal. Ventral 

 reaching vent or anal. Caudal truncate or feebly emarginate. Caudal 

 peduncle 1^ to 1^ times as long as deep. Scales feebly denticulate, 



Fig. 216. 



Paratilapia pfefferi. 

 Type (Tr. Z. S. 1898). f . 



% 4 ''1— '^2 



32-33 gifo > Ifiteral lines jq^- Olive above, silvery white beneath, with 

 seven dark cross-bands ; vertical fins greyish brown, spinous dorsal 

 darker towards the edge. 



Total length 76 millim. 



Lake Tanganyika. 

 1. Type. Kinyamkolo. Prof. J.\E. S. Moore (C). 



2-3. Ad. Sumbu. Dr. W. A. Cunnington (C). 



9. PARATILAPIA DEMEUSII. 



Boulcng. Ann. Mus. Congo, Zool. i. p. 120, pi. xlv. fig. 3 (1899), and Poiss. Bass. 

 Congo, p. 41G (1901) ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 2^2. 



Depth of body slightly greater than length of head, Avhich is 3 times 

 in total length. Head twice as long as broad, frontal region humped ; 

 snout rounded, with straight upper profile, as long as broad, as long as 

 postocular part of head; eye 3| times in length of head, equal to 

 interorbital width, exceeding prteorbital depth; mouth extending to 

 below anterior fourth of eye ; teeth small, in 3 series, about GO in outer 

 series of upper jaw ; 4 series of scales on the cheek, width of scaly part 

 equal to diameter of eye Gill-rakers short, 9 on lower part of anterior 



