284 On Reptiles and Fishes from the Ogowe &c. 



to this species, although it shows some discrepancies from 

 the typical specimen (from Doum^) ; it has D. 20, A. 25, 

 L. lat. 58 ; there are eight notched teeth in the upper as well 

 as lower jaw. Five longitudinal series of scales along each 

 side of the caudal peduncle. 



Mormyrus Marchei. 



? Petrocephahts Marchei, Sauvage, Bull. Soc. Philom. 1878, p. 100. 

 p Mormyrus {Petrocephalus) Marchei, Sauvage, N. Arch. Mus. iii. 1880, 

 p. 50, pi. ii. fig. 6. 



D. 22. A. 30. L. lat. 63. 



Snout short, obtuse, but rather longer than the eye, with 

 the mouth at its lower side. Mouth narrow, a little wider 

 than the eye, armed above and below with six notched teeth ; 

 its corner lies a little in advance of the vertical from the front 

 margin of the orbit. The upper profile of tlie head is some- 

 what more convex than the lower and ascends slightly towards 

 the origin of the dorsal. Eye one fifth of the length of the 

 head. The height of the body is contained 3| times in the 

 total length (without caudal), the length of the head b\ times. 

 Caudal peduncle extremely slender, longer than the head 

 (measured from the last anal ray), its depth being only two 

 ninths of its length. The origin of the dorsal fin is behind 

 that of the anal and midway between the root of the caudal 

 and the end of the opercle. The anal extends also further 

 backwards than the dorsal. Pectoral fin as long as the head, 

 reaching beyond the middle of the ventral ; ventral fin half as 

 long as the pectoral or as the distance of its root from the 

 vent. Abdomen behind the ventral fin compressed into a 

 ridge. Scales of moderate size ; there are nine in an oblique 

 series running from the vent to the lateral line and three and 

 two half longitudinal series cover the side of the caudal 

 peduncle. Silvery, light brownish above. 



millim. 



Total length 175 



„ „ without caudal 150 



Length of the head 27 



Diameter of the eye 6 



Width of the mouth 6-5 



Height of the body 38 



Length of caudal peduncle 33 



One specimen from Talagouga. 



Pellonula vorax^ Gthr. 

 Old Calabar. 



