EXPLANATION OF THE PLATES. 



PLATE XXVII. 



Fig. 1. Labeo niloticns, Forsk., p. 163. Samannud. Nat. size. 1 a. Upper view of 



head, nat. size ; 1 b. Open mouth, X 2. 

 Fig. 2. Labeo forskalii, Eiipp., p. 176. Korosko, Nubia. Nat. size. 2 a. Upper 



view of head, nat. size ; 2 b. Open mouth, X 11. 



PLATE XXVIII. 



Labeo horie, Heck., p. 167. Ibrim, Nubia. Nat. size. With upper view of head, 

 nat. size, and open mouth, X 2. 



PLATE XXIX. 



Labeo conbie, Eiipp., p. 170. Abu Hor, Nubia, f nat. size. With upper view of 

 head, -f nat. size, and open mouth, nat. size. 



PLATE XXX. 



Labeo coabie, Eiipp., p. 170. Kosheh, Nubia. Skeleton, f nat. size. a. Upper 

 view of skull, b. Back view of skull and pectoral arch, c. Lower jaw, 

 f nat. size; d. Lower pharyngeal bones and teeth, X 3. 



PLATE XXXI. 



Fig. 1. Labeo horie, Heck., p. 167. Near Cairo. Young. Nat. size. 



Fig. 2. Labeo coubie, Eiipp., p. 170. Assuan. Young. Nat. size. 



Fig. 3. Labeo fors/ealii, Eiipp., p. 176. Luxor. Young. Nat. size. 



Fig. 4. Liscognathus vinciguerrce, Blgr., p. 185. Kermeh, Nubia. (Type.) X 2|. 



a. Upper view of head, b. Lower view of head, X 5. 

 Fig. 5. Liscognathus quadrimaculatus, Eiipp., p. 186. Zegi, Lake Tsana. Nat. size. 



a. Upper view of head, b. Lower view of head, X 2. 



PLATE XXXII. 



Fig. 1. Labeo victorianus, Blgr., p. 174. Lake Victoria. (Type) f nat. size. 



a. Upper view of head, nat. size ; b. Open mouth, X 1^. 

 Fig. 2. Liscognathus johnstonii, Blgr., p. 184. Lake Victoria. (Type.) Nat. size. 



a. Upper view of head, X 2 ; b. Open mouth, X 2. 



