TILAPIA. 



159 



23. Hct. 



Beira, Portuguese E. AErica. 



24. 



Hgr. 







Klein Letaba, Transvaal. 



25. 



Ad. 







Middle Letaba, Transvaal. 



26. 



Hgr. 







Inkomati R., near Komati 

 Poort, Transvaal. 



27. 



Ad. 







Dewaars R., Transvaal. 



28. 



Ad. 







Crocodile R., „ 



29- 



-31. Ad 



.& 



yg- 



Uinfulosi Station, Zululand, 



32. 



Skel. 







55 V 



33. 



Ad. 







Indukuduku, Zululand. 



34. 



Ad. 







Koso Bay, „ 



35. 



Yg- 







Inkusi R., Natal. 



36- 



■37, 38- 



40, 



41- 



Durban. 



42. Ad. & hgr. 

 43-52. fTgr.&yg. 

 53-58. Ad., hgr., 



&yg- 



59-67. Ad., hgr., 



&yg- 



68. Hgr. 



69, 70-71. Ad. &yg. Buffalo R , East London. 



This species is very closely connected with 

 of some isolated specimens may be somewhat 



Mr. C. Grant (C.).; C. D. 

 Rudd, Esq. (P.). 



Dr. J.D. F. Gilchrist (P.). 

 Major G. E. Bruce (P.). 



Dr. J. D. F. Gilchrist (P.). 

 Hon. P. A. Methuen (P.). 

 Mr. C. Grant (C.) ; 0. D. 

 Rudd, Esq. (P.). 



15 



Dr. E. Warren (P.). 



Mr. T. Ayres (0.). 



Col. Bowker (P.). 

 Rev. N. Abraham (C.) ; 

 Dr. A. Giinther (P.). 

 Rev. N. Abraham (P.). 



J. F. Quekett, Esq. (P.). 

 Dr. J. D. F. Gilchrist (P.). 



T. nilotica, and the naming 

 arbitrary. 



8. TILAPIA LINNELLI. 



Tilcqria (Gephyrochromis) linnellii, Liinnb. Ann. & Mag. N. H. (7) xii. 1903, 

 p. 42. 



Depth of body 2§ to 2§ times in total length, length of head 2J to 

 2^ times. Head twice, or a little over twice, as long as broad, upper 

 profile nearly straight; snout rounded, as long as postocular part of 

 head ; eye 5 times in length of head, If times in interorbital width, 

 equal to prseorbital depth ; mouth rather large, f width of head, 

 extending to between nostril and eye ; teeth in 6 or 7 series, outer 

 (about 100 in upper jaw) conical*; 2 series of scales on the cheek, 

 width of scaly part less than diameter of eye. Gill-rakers short, 16 on 

 lower part of anterior arch. Dorsal XV 12-13 ; last spine longest, not 



* In view of variations in other species, I doubt whether the conical condition of the 

 outer teeth will prove a constant character, although Prof. Lonnberg has had as many as 

 eight specimens at his disposal. 



