510 



CICHLIMK. 



Measurements (in millimetres). 



Total length (without caudal) . . . 



Greatest depth of body ....... 



Length of head , 



Width of head 



Length of snout 



Diameter of eye 



Interorbital width 



Length of last dorsal spine .... 

 ,, longest soft dorsal ray 

 ,, third anal spine . . . . 

 ,, longest soft anal ray 

 „ pectoral 



105 



93 



87 



40 



34 



30 



40 



32 



28 



20 



16 



13 



12 



9 



8 



10 



9 



8 



12 



9 



8 



15 



15 



14 



20 



24 



18 



15 



15 



13 



20 



24 



18 



35 



30 



27 



This species has been named after Mr. George Ishmael, Interpreter to the Police 

 Court at Entebbe, to whom Mr. Degen is indebted for valuable assistance during 

 his stay in Uganda. 



7. HAPLOCHPOMIS NUCHISQUAMULATUS. 

 (Plate XC. fig. 7.) 



Chromis nuchisquamulatus, Hilgendorf, Sitzb. Ges. naturf. Fr. Berl. 1888, p. 76. 



CKromis (Haplocliromis) obliquidens, Hilgendorf, 1. c. 



Ctenochromis nuchisquamulatus, Pfeffer, Thierw. O.-Afr., Fische, p. 14 (1896). 



Ctenochromis sauvagei, Pfeffer, op. cit. p. 15. 



Ctenochromis obliquidens, Pfeffer, Arch. f. Naturg. lxiii. 1897, p. 60. 



Tilapia nuchisquamulata, Boulenger, Tr. Zool. Soc. xv. 1898, p. 5, and Proc. Zool. Soc. 1899, 



p. 131 ; Pellegrin, Mem. Soc. Zool. France, xvii. 1904, p. 183 (part.). 

 Tilapia sauvagii, Boulenger, Tr. Zool. Soc. xv. p. 5. 

 Tilapia obliquidens, Boulenger, 1. c. 



Depth of body twice and a half to three times in the total length, length of head 

 twice and four-fifths to three and one-fourth times. Snout with straight or slightly 

 convex profile, as long as the eye, which is three and one-third to four times in the 

 length of the head and equal to or a little less than the interorbital width, once and 



