782 MR. G. A. BOTTLENGER ON THE FISHES [NoV. 15 



Mus. Genova, (2) x. 1892, p. 976 ; Steind. Notes Leyd. Mus. xvi. 

 1894, p. 65. 



Mormyroiis zambanenje, Griinth. 1. c. 



Mormyrus {Mormyrops) zambanenje, Peters, Eeise n. Mossamb. 

 iv. p. 88, pi. XV. fig. (1868). 



Mormyrus (Mormi/rops) swanenhurqi, Schilthuis, Tijds. Nederl. 

 Dierk. Ver. (2) iii. 1891, p. 91. 



Depth of body 5 to 6 times in total length, length of bead 3| to 

 4|. Head nearly twice as long as deep, upper profile slightly 

 concave ; snout rounded ; jaws equal ; u'idth of mouth nearly 

 equal to length of snout ; teeth truncate or conical in the adult, 

 more or less distinctly notched in the young, 24 to 35 in each 

 jaw; eye small, situated in the anterior third of the head, its 

 diameter 2 (young) to 4 times in length of snout, 2 to 3 times in 

 interorbital width. Dorsal 21-27, g length of anal or a little 

 more, originating 2 to 2| as far from the end of the snout as from 

 the base of the caudal. Anal 41-51, originating considerably in 

 advance of dorsal (its 12th to 16th ray corresponding to the first 

 dorsal ray), and a little nearer head than root of caudal. Pectoral 

 I to ^ length of head, ventral | to g. Caudal rather small, densely 

 scaled, with rounded lobes. Caudal peduncle twice as long as deep, 

 ^ to f length of head. 85-96 scales in the lateral line, ^^ in a 

 transverse line on the body, 23-26 in a transverse line between 

 dorsal and anal, 16 or 18 round caudal peduncle. Olive above, 

 silvery beneath. 



Total length 1230 milUm. 



Senegal, Congo, Zambezi, L. Nyassa, Webi Shebeli and Juba. 



2. MORMYEOPS JlNGTJILLOIDES. 



Mormyrus anquilloides,ljmn. Mus. Ad. Frid.ii. p. 110(1764), and 

 S. N. i. p. 522 (1766) ; GeofEr. Descr. Egypte, Poiss. p. 274, 

 pi. vii. fig. 2 (1829) ; Cuv. & Val. xix. p. 258 (1846) ; Marcusen, 

 Mem. Ac. St. Petersb. (7) vii. 1864, no. 4, p. 132. 



Mormyrus dendera, Lacep. Hist. Poiss. v. p. 621 (1803). 



Mormyro^is anguilloides, Marcusen, Bull. Ac. St. Petersb. xii. 

 1854, p. 14 ; Giintb. Cat. vi. p. 223 (1866). 



Marcusenius anguilloides. Gill, Proc. Ac. Philad. 1862, p. 444. 



Depth of body 5 to 6i times in total length, length of head 4. 

 Head nearly twice as long as deep, upper profile slightly concave ; 

 snout rouuded, the upper jaw a little longer than the lowei- ; width 

 of mouth less than length of snout ; teeth more or less distinctly 

 notched, 22 or 24 in each jaw ; eye small, situated in the anterior 

 third of the head, its diameter 2^ in length of snout, 2 in inter- 

 orbital width. Dorsal 26-28, f length of anal, originating twice 

 as far from the end of the snout as from the base of the caudal. 

 Anal 39-42, originating considerably in advance of the dorsal (its 

 10th or 11th ray corresponding to the first dorsal ray), and at 

 equal distance from head and root of caudal. Pectoral nearly 

 I length of head, ventral ^. Caudal rather small, scaled at the 



