EXPLANATION OF THE PLATES. 56/ 



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 l^. 



PLATE XXVIII. 



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

 nat. size, and open mouth, X 2. 



PLATE XXIX. 



Labeo coubie, 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 coubie, 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 forskalii, Eiipp., p. 176. Luxor. Young. Nat. size. 



Fig. 4. Liscognathus vinciguerrw, Blgr., p. 185. Kermeh, Nubia. (Type.) }< 2\. 



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

 Fig. 5. Discognathus 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 y Blgr, p. 174. Lake Victoria. (Type.) f nat. size. 



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

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



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



