TILAPIA. 



209 



and with dark and light spots, or with black streaks ; outer ventral rays 

 black or blackish. 



Total length 100 millim. 



Angola, Bechuanaland, Rhodesia, Katanga, Lake Bangweki. 'I'ype 



in \'ienna Museum. 



Fig. 133. 



Franklin White, Esq. (P. 

 Capt. Lemaire (C). 



F. H. Melland, Esq. (P.). 



43. TILAPIA STEINDACHNERI. 

 Bouleng. Ann. & 3I;ig. N. H. (8) xii. 1913, p. 483. 



Depth of body nearly equal to length of head, 2\ to 3 times in total 

 length. Head a little more than twice as long as broad ; snout with 

 convex upper profile, as long as broad or a little longer than bread, as 

 long as postocular part of head ; eye 3f (young) to 4| times in length 

 of head, equal to interorbital width or suborbital depth ; mouth 

 moderate, about § width of head, extending to between nostril and eye ; 

 teeth small, in 3 series, 40 to 60 in outer row of upper jaw ; 4 series of 

 scales on the cheek, width of scaly part equal to or a little less than 

 diameter of eye. Gill-rakers short, 12 to 14 on lower part of anterior 

 arch. Dorsal XIV-XV 12-13; spines equal in length from the sixth 

 or seventh, \ to not quite ^ length of head ; longest soft rays about ^ 

 length of head. Anal III 8-9 ; third spine as long as and stronger 

 than last dorsal. Pectoral f to f length of head, nearly reaching 



VOL. III. P 



