282 Dr. A. Gunther on Reptiles and Fishes 



notched teeth ; its corner is beyond the vertical from the 

 front margin of the eye. The upper profile of the head is some- 

 what more curved than the lower and steadily ascends to 

 the dorsal fin. Eye small, one fifth of the length of the head. 

 The height of the body is contained 2f times in the total 

 length (without caudal), the length of the head 3f times; the 

 caudal peduncle is slender, much shorter than the head, its 

 depth being two fifths of its length. The origin of the dorsal 

 fin is behind that of the anal and nearer to the root of the 

 caudal than to the head. The anal extends also further 

 backwards than the dorsal. Pectoral shorter than the head, 

 reaching to the middle of the ventral. Ventral very short, 

 only half as long as the pectoral or as the distance of its root 

 from the vent. Scales rather large ; there are eight in an 

 oblique series running from the first anal ray to the lateral 

 line, and three and two half longitudinal series on the side of 

 the peduncle of the tail. Silvery brownish above ; a deep 

 black spot on the root of the caudal, and another high up on 

 the side below the origin of the dorsal fin. 



millim. 



Total length 155 



„ „ without caudal 133 



Length of the head 35 



Diameter of the eye 7 



Width of the mouth 14 



Length of the pectoral fin 25 



„ „ ventral fin 12 



„ „ caudal peduncle 23 



Height of the body 49 



One specimen from Talagouga. 



Mormyrus simus, 



Mormyrus (Petrocephalus) simus, Sauvage, Bull. Soc. Philom. 1878, 

 p. 100; Nouv. Arch. Mus. iii. 1880, p. 51, pi. ii. fig. 3 (fig. mediocr.). 



Mormyrus tenuicauda, Steind. Notes Leyd. Mus. xvi. 1894, p. 69, pi. iv. 

 fig.l. 



D. 26-28. A. 31-33. L. lat. 48 *. 



Snout short, obtuse, a little shorter than the eye, with the 

 mouth at its lower side. The mouth is narrow, not wider 

 than the eye, armed above with twelve and below with 

 twenty-two teeth ; its corner lies beyond the vertical from 

 the front margin of the eye. The upper profile of the head 

 is a little more curved than the lower, and steadily ascends to 



* This is the number of transverse series above the lateral line, which 

 of larger scales, only forty in number. 



