LSn MOHMYRID.E. 



50-59. Ad. & hgr. Assnan. L. Loat, Esq. (C), 



60-C4. Yg. Khartum. J. Petherick, Esq. (C). 



(;5-(j6. Ad. Wad Mediae, Blue Nile. L. Loat, Esq. (C). 



67. Hgr. Eosaires, „ Cai)t. S. Flower (P.). 



68-70. Hgr. & yg. Lake Victoria. Sir H. H. Johnston (P.). 



7L Hgr. ^ „ C. W. Hobley, Esq. (P.). 



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



Entebbe. 



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

 with doubt to this species : — 



75. Yg. WabbiR. (Webi Sliebeli Prof. 0. Neumann and 



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



The likewise East African M. hildehrandti , Peters, from the Athi 

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

 caudal peduncle. 



Mormyrus nacra^ Cuv. & Yal. t. c. p. 2o7, is founded on a coloured 

 sketch of a fish apparently identical with M. kannvme. 



9. MORMYRUS CASCHIVE. 



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



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



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



Bouleng. Proc. Zool. Soc. 1898, p. «15, Poiss. Bass Congo, p. 113 (1901), and 



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

 Mormi/rus Jongipimds, Riipp. Fortset>5. Beschr. n. Fische Nil, p. 7, pi. i. fig. 2 



(1832). 

 Scrophicephalus lonr/ipinnis, Swains. Nat. Hist. Fish. i. p. 309 (1838). 

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

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



Depth of body of 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 3 to \ length of head. Caudal with 



