MOEMYEUS. 



69 



slightly concave and its lower profile forming a nearly straight line. I think I should 

 have been inclined to unite the two supposed species, were it not for the fact that two 

 out of the three specimens with straight snouts examined by me have 1 7 rays in the 

 anal fin, the third having 18, 18 to 20 being the usual number in M. caschive, not one 

 of the numerous specimens which have been at my disposal having so few as 17. 



The length of the head is greater than the depth of the body, this difference from 

 M. caschive being due to the direction of the snout. 



The specimens examined by me are three in number: 1, the type, rather poorly 

 preserved, of Cuvier and Valenciennes's M. geoffroyi, no doubt from the Lower Nile ; 

 2, a single specimen obtained by Mr. Loat between Beni Souef and Biba, on Sept. 6, 

 1899, of which a figure is given on PL XI.; 3, a single specimen from Wadelai, 

 Sept. 7, 1902, forming part of the collection made in Uganda by the late Mr. J. S. 

 Budgett. 



Measurements and particulars of these three specimens are here given : — - 



1. 



2. 



3. 



290 



435 



330 



57 



90 



58 



65 



103 



78 



27 



46 



36 



7 



9 



7 



14 



18 



15 



30 



44 



35 



17 



23 



20 



45 



74 



51 



84 



83 



90 



17 



17 



18 



120 



110 



116 



28 



30 



35 



35 



38 



42 



24 



20 



22 



23 



22 



24: 



30 



28 



30 



Total length (without caudal fin) 



Greatest depth 



Length of head 



Length of snout 



Diameter of eye 



Interocular width 



Length of caudal peduncle 



Depth of caudal peduncle 



Length of pectoral fin 



Number of rays in dorsal fin 



„ anal fin 



scales in lateral line , 



„ from the middle of the back to the lateral line 

 „ „ lateral line to the middle of the belly 



„ between dorsal fin and lateral line 



„ „ lateral line and anal fin 



„ round caudal peduncle 



