116 Dr. A. Giinther on new Fishes. 



Monnyrus Moorii, sp. n. 

 D. 24. A. 29. L. lat. 45. L. transv. ^J *. 



Snout obtuse^ with the jaws equal in length, the mouth being 

 terminal. Eye small, its diameter being one-half of the length 

 of the snout, and one-eighth of that of the head. Teeth small, 

 deeply notched, |. Pectoral fin not much shorter than the head, 

 extending somewhat beyond the middle of the ventral fin. The 

 height of the body is contained thrice and four-fifths in the 

 total length (without caudal), the length of the head nearly five 

 times. Brown ; head and a small spot on the root of the caudal 

 fin black. 



One specimen, 9 inches long, is in the Liverpool Museum ; 

 it was discovered by Mr. Walker in the River Ogome. 



Mormyrus Ussheri, sp. n. 



D. 27-28. A. 30. L. lat. 58. L. transv. ^. 



Snout not very obtuse, with the lower jaw somewhat promi- 

 nent, and terminating in a very short skinny flap. , Eye small, 

 its diameter being two-fifths of the length of the snout, and 

 two-thirteenths of that of the head. Teeth small, slightly 

 notched, \. Pectoral fin at least as long as the head, extending 

 beyond the middle of the ventral fin. The height of the body 

 is contained thrice and a half in the total length (without 

 caudal), the length of the head four times and two-thirds. 

 Uniform brown. 



Two specimens, from 7 to 9 inches long, were collected by 

 H. T. Ussher Esq., in the Bossumprah River, Gold Coast. 



Mormyrus catostoma (Gthr.). 



This species was described from East- African specimens. An 

 example with twenty-nine anal rays, from the Bossumprah River, 

 has been sent by Mr. Ussher to the Liverpool Museum. 



Mormyrus Walkeri, sp. n. Plate III. fig. C. 

 D. 21. A. 22-23. L. lat. 55. 



Allied to M. niger. 



Snout obtuse, convex, not projecting beyond the mouth, 

 which is terminal. Eye small, its diameter being shorter 

 than the length of the snout. Teeth deeply notched, ^. Pec- 

 toral fin as long as the head without snout, not quite twice 

 as long as, and extending beyond the root of, the ventral. The 



* In an oblique line between the origins of the dorsal and anal fins. 



