EXPLANATION OF THE PLATES. 



PLATE LYII. 



Bagrus bayad, Forsk., p. 324. Barrage near Cairo, f nat. size. With upper view of 

 head, -f nat. size, and praemaxillary and vomerine teeth, nat. size. 



PLATE LVIII. 



Bagrus docrnac, Forsk., p. 327. Samannud. With upper view of head and 

 praemaxillary and vomerine teeth, •§ nat. size. 



PLATE LIX. 



Bagrus degeni, Blgr., p. 331. Enter/be, Lake Victoria. (Type.) With upper view 

 of head and praemaxillary and vomerine teeth. \ nat. size. 



PLATE LX. 



Fig. 1. Chrysichthys aur at us, Geoffr., p. 333. BeniSouef. Nat. size. la. Dentition. 

 Fig. 2. Chrysichthys rueppelli, Blgr., p. 337. Nile. (Type.) Nat. size. 



PLATE LXI. 



Fig. 1. Clarotes laticeps, Hupp., p. 340. Adult. Jebelain, White Nile, f nat. size. 



a. Upper view of head, f nat. size ; b. Dentition, f nat. size. 

 Fig. 2. Young. Goz-abu-Gumah. Nat. size. 



PLATE LXII. 



Auchenoglanis biscutatus, I. Geoffr., p. 344. Gondokoro. Nat. size. With upper 

 view of head and open mouth. 



PLATE LXIII. 



Auchenoglanis occidentalism C. & V., p. 347. Mouth of Lake No. f nat. size. With 

 upper view of head, f nat. size, and open mouth, nat. size. 



