Dr. A. Giinther on a new Species c»/ Apocryptes. 117 



height of the body is two- sevenths of the total length (without 

 caudal), the length of the head one-fourth. Uniform brown. 

 River Ogome (Gaboon). 4 inches long. 



Mormyrops longiceps, sp. n. 

 D. 26. A. 39. L. lat. 90. 



Head very low and elongate, more than twice as long as high. 

 Snout subcylindrical, of moderate length, rounded in front, 

 with the upper jaw somewhat longer than the lower. Eye very 

 small, situated in the anterior third of the head. Teeth not very 

 small, truncated and notched at the apex, ||. Dorsal fin more 

 than half as long as the anal. The height of the body is one- 

 seventh of the total length (without caudal), the length of the 

 head a little less than one-fourth. Coloration uniform. 



This species is more closely allied to M. anguilloides from the 

 Nile than to M. deliciosus from West Africa ; it differs from the 

 former in the shape of its head. It was discovered by H. T. 

 Ussher, Esq., in the Bossumprah River. One specimen, 

 11 inches long, is in the Liverpool Museum. 



XVI. — Description of a new Species o/ Apocryptes. 

 By Dr. Albert Gijnther. 



Apocryptes polyophtlialmus. 



D. 5-6 I i A. 25. 



Scales minute anteriorly, becoming somewhat larger poste- 

 riorly. The height of the body is one-sixth or one-seventh of 

 the total length (without caudal). Snout rather high, twice as 

 long as the eye, with the upper jaw somewhat longer than the 

 lower ; gape extending to below the posterior margin of the eye. 

 Eye retractile as in Periophthahnus. Teeth small, two anterior 

 pairs enlarged in each jaw ; mandibulary teeth nearly horizontal. 

 Dorsal fins not continuous, the spines of the anterior prolonged 

 into filaments. Caudal fin shorter than the head. Olive- 

 coloured; head with some minute whitish dots. Anterior dorsal 

 with numerous small (in spirits white) ocelli. Similar ocelli on 

 the second dorsal, where they are elongate and arranged in four 

 regular series ; a few ocelli on the caudal fin. 

 China. 5 inches long. 



