212 



CICHLIDJE. 



moderately slender, in 4 series, 30 to 34 in outer series of upper jaw; 

 3 series of scales on the cheek, width of scaly part nearly equal to 

 diameter of eye. Gill-rakers short, 10 or 11 on lower part of anterior 

 arch. Dorsal XI 11-12; spines feeble, subequal from the third, which 

 measures ^ length of head. Anal III 8-9 ; spines feeble, like the 

 dorsals. Pectoral f to § length of head, not reaching origin of anal. 

 Ventral not reaching vent. Caudal rounded. Caudal peduncle as long 

 as deep. Scales cycloid, 28-30 jj; lateral lines -^j ', breast and belly 

 naked. Dark blue above, with more or less distinct, ill-defined, darker 

 bars; sides with pale blue spots; dirty white beneath; lower labial 

 lobe perfectly white ; fins greyish, soft dorsal, anal, and caudal with 

 numerous small darker spots which may form vertical bars on the caudal ; 

 the latter with the posterior edge of a faint pink. 



Total length GO miliim. 



Lake Magadi, a hot soda lake in bottom of Rift Valley, British East 

 Africa, at an elevation of 19 SO feet above sea-level. 



L. Magadi. 



1-5. Types. 



6-35. Ad., yg., & eggs. 



J. W. Graham, Esq. (P.). 

 0. W. Woodhouse, Esq. (P.). 



Fig. 137. 





Tilapia icoosnami. 

 Type (Tr. Z. S. 1911). f. 



46. TILAPIA WOOSNAMI. 

 Bouleng. Tr. Zool. Soc. xviii. 1911, p. 417, pi. xliii. fig. 2. 



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

 Head twice as long as broad ; snout obtusely pointed, as long as post- 

 orbital part of head, as long as broad, with slightly convex upper 

 profile; eye Ah times in length of head, equal to width of interorbital 

 region or depth of prreorbital ; mouth moderate, § width of head, 



