TILAPIA. 



151 



2. TILAPIA SHIRANA. 



Oveochromis shiramis, Bouleng. Proc. Zool. Soc. 189G, p. 916, fig. ; Pellegr. Mem. 



Soc. Zool. France, xvi. 1904, p. 355. 

 Tilapia sJiirana, Bouleng. Tr. Zool. Soc. xv. 1898, p. 4, and Proc. Zool. Soc. 1899, 



p. 111. 

 Depth of body 2 to 2'f times in total length, length of head 3 times. 

 Head 1| to If times as long as broad ; snout rounded, with straight or 



Fig. 98, 



Head of Tilapia sliirana. 

 Type (P. Z. S. 1896). 



slightly concave upper profile, a little broader than long, J to J post- 

 ocular part of head; eye 4 to 5 times in length of hend, If to 2 times 

 in intcrovbital width, equal to or a little less than prteorbital depth ; 

 mouth moderate, f to | width of head, extending to between nostril and 

 eye; teeth in 5 to 8 series, 70 to 100 in outer series of upper jaw; 

 2 or 3 series of scales on the check, width of scaly part not greater than 



