TIL APIA. 



181 



edged ^Tith bright yellow, the former with round red spots forming 

 regTilar series between the rays; caudal with small round red spots. 



iotal length 240 millim. 



Lake Nyassa. 



L. Nyassa. 



1-2. Typos 

 3. Skel. 



Capt. E. L. Rhoadcs (P.). 



21. TILAPIA LEPIDURA. 

 Bouleng. Proc. Zool. Soc. 1899, p. 116, and Poiss. Bass. Congo, p. 459 (1901) ; 

 Pellegr. Mem. Soc. Zool. France, xvi. 190'!, ji. 317. 

 Depth of body 2^ to 2^ times in total length, length of head 2| to 

 3 times. Head ]-| to If times as long as broad; snout with convex 



Fig. 116. 



|,V,l*i",* 'L. 



l^ilajna lupichira. 

 Type, from Angola, f. 



upper profile, bronder than long, as long as or a little shorter than 

 postocular part of head; eye of to 4 times in length of head, li to 

 2 times in interorbital width, equal to or a little less than praeorbital 

 depth; mouth rather small, f width of head, extending to between 

 nostril and eye ; teeth extremely slender, in 4 series, 80 to 88 in outer 

 series of upper jaw ; 2 or 3 series of scales on the cheek, width of scaly 

 part less than diameter of eye. Gill-rakers short, 17 to 20 on lower 

 part of anterior arch. Dorsal XVI 10-12; last spine longest, f to 



