lofi MOK.MYRID.E. 



50-59. Ail. cV. hgr. Acsuan. L. Loat, Esq. (C). 



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



65-66. Ad. Wad Medine, Blue Nile. L. Loat. Esq. (C). 



67. Hgr. Rosaires, „ (apt. S. Flower (P.). 



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



71. Hgr. ,. C. W. Hobley. Esq. (P.). 



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



Entebbe. 



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

 with douht to this species : — 



75. Yg. Wabbi R. (Webi Shebeli Prof. 0. Neumann and 



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



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

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

 caudal peduncle. 



Mormyrus nacra, Cuv. & Val. t. c. p. 207, is founded on a coloured 

 sketch of a fish apparently identical with M. kannvme. 



9. MORMYRUS CASCHIVE. 



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



(1846); Marcusen, Mem. Ac. St. Petersb. (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. 66, pi. xii. fig. 2 (1907). 

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



(1832). 

 Scrophicephalus 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, S or 10 in lower; 

 eye moderate, its diameter 1| (young) to 2^ times in interorbital 

 width. Dorsal 7G-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, 

 5 to | length of head, ventral \ to }, length of head. Caudal with 



