136 MOKMTEID.t. 



50-59. AJ. & hgr. Assuan. L- Loai, Esq. (C). 



60-64. Yg. Khartum. J. Petherick, Esq. (C). 



65-66. Ad. Wad Mediae, Blua Nile. L. Loat, Esq. (C). 



67. Hgr. Eosaires, „ Capt. S. Flower (P.). 



68-70 Hot. & y^. Lake Victoria. Sir H. H. Johnston (P.). 



71. Hgr." „ C. VV. Hobley, Esq. (P.). 



72-74. Ad. Lake Victoria, near Mr. E. Degen (C). 



Entebbe. 



The following specimen, with only 51 rays in the dorsal fin, is referred 

 with doubt to this species : — 

 75. Ycr. WabbiR. (Webi Bhebell Prof. 0. Neumann and 



System). Baron C. v. Erlanger (C). 



The likewise East African jV. hildebraudti, Peters, from the Athi 

 River, is stated to have 63 rays in the dorsal, and 24 scales round the 

 caudal peduncle. 



Monnyrus nacra, Cuv. & Val. t. c. p. 257, is founded on a coloured 

 sketch of a fish apparently identical with M. kannume. 



9. MORMYRUS CASCHIVE. 

 Linn., Hasselq. Iter Pala;st. p. 398 (1757) ; Cuv. & Val. Hist. Poiss. xix. p. 227 



(1846) ; Marcusen, M6m. Ac. St. P6torsb. (7) vii. 1864, no. 4, p. 120 ; 



Guiith. Cat. Fish. vi. p. 215 (1866), and Petherick's Trav. ii. p. 253 (1869) ; 



Bouleng. Proc. Zool. Soc. 1898, p. 815, Poiss. Bass Congo, p. 113 (1901), and 



Fish Nile, p. 66, pi. xii. fig. 2 (1907). 

 Mormyrus longipinnis, Riipp. Fortset.!. Beschr. n. Fische Nil, p. 7, pi. i. fig. 2 



(1832). 

 ScrophicepJialus longipinnis, Swains. Nat. Hist. Fish. i. p. 309 (1838). 

 Mormyrus geoffroyi (non C. & V.), Giinth. tt. cc. pp. 216, 253. 

 Mormyrus longirostris, part., Bouleng. Proc. Zool. Soc. 1898, p. 817. 



Depth of body 3f to 5 times in total length, length of head 4 to 

 5 times. Upper profile of head descending in a straight line or feeble 

 curve; snout produced, about as long as postocular part of head in 

 adult, its length 2 (young) to 4 times its least depth ; mouth very small, 

 with thick lips ; teeth notched, 5 to 9 in upper jaw, 8 or 10 in lower; 

 eye moderate, its diameter IJ (young) to 2^ times in interorbital 

 width. Dorsal 76-90, originating well in advance of base of ventral, 

 5 to 7 times as long as anal, 1\ to If times as long as its distance from 

 end of snout. Anal 18-21, originating at nearly equal distance from 

 base of pectoral and from base of caudal. Pectoral obtusely pointed, 

 I to I length of head, ventral \ to \ length of head. Caudal with 



