1898.] OF THE FAMILY MOEMTRID^. 815 



body, 30 in a transverse series between dorsal and anal, 30 round 

 caudal peduncle. Brownish. 



Total length 185 millim. 



West Africa. 



4. MOEITYKCS MACEOPHTHALMTJS. 



Mormyrus macrojjlithahnus, Griinth. Cat. vi. p. 217 (1866). 



Depth of body nearly 5 times in total length, length of head 6. 

 Head scarcely longer than deep, with strongly curved upper profile ; 

 snout short, | as loQg as postorbital part of head, projecting a 

 little beyond the mouth ; teeth very small, feebly notched, 7 in 

 the upper jaw, 8 in the lower ; eye large, in the anterior half of 

 the head, nearly as long as the snout, Ig interorbital width. 

 Dorsal 65, originating slightly in advance of ventral, twice as far 

 from base of caudal as from end of snout, ■ik times as long as anal. 

 Anal 21, originating a little nearer base of caudal than end of 

 snout. Pectoral pointed, as long as the head, ventral |. Caudal 

 with long pointed lobes, as long as head. Caudal peduncle 2| as 

 long as head, 4 length of head. 98 scales in the lateral line, j^ in 

 a transverse series on the body, 23 in a transverse series between 

 dorsal and anal, 12 round caudal peduncle. 



Total length 290 millim. 



West Africa. 



5. MORMYEUS OVIS. 



Mormyrus ovis, Bouleng. Ann. Mus. Congo, Zool. i. 1898, p. 15, 

 pi. vii. fig. 2. 



Depth of body 4 times in total length, length of head 4|. 

 Head 1\ as long as deep, with strongly curved upper profile ; 

 snout short, § postorbital part of head ; teeth very small, 

 notched, 5 in the upper jaw, 8 in the lower ; eye moderate, 

 I length of snout, | interorbital width. Dorsal 53, originating 

 above base of ventral, a Little longer than its distance from the 

 end of the suout, 2| as long as anal. Anal 23, oi'iginating a little 

 nearer head than base of caudal. Pectoral obtusely pointed, | 

 length of head, ventral f . Caudal with obtusely pointed lobes, as 

 long as head. Caudal peduncle 2^ as long as deep, | length of 

 head. 92 scales in the lateral line, jg in a transverse series on the 

 body, 29 in a transverse sei-ies between dorsal and anal, 16 round 

 caudal peduncle. Pale brownish. 



Total length 290 millim. 



Upper Congo. 



6. MOEMYEUS CASCHIVE. 



Mormyrus ccfsc/iwe, Hasselq. Iter Palaest. p. 398 (1757); CiiV' 

 &. Val. xix. p. 227 (1846) ; Marcusen, Mem. Ac. St. Petersb. (7) 

 vii. 1864, no. 4, p. 120 ; Giinth. Cat. vi. p. 215 (1866). 



Mormyrus longipinnis, Riipp. Fortsetz. Beschr. n. Fische Nil, 

 p. 7, pi. i. fig. 2 (1832). 



