224 MORMYRID^. 



2. Mormyrops deliciosus. 



Ox\Thynchiis deliciosus, Leach in Tuckey, Narrat. Exped. River 



Zaire, p. 410. 

 MormjTUS tuckeyi, Cuv. Sf Val. xix. p. 263. 



D. 25-26. A. 42-46. L. lat. 90. 



Head twice as long as high ; snout subtetrahedral, of moderate 

 length, rounded in front, with the upper jaw somewhat longer than 

 the lower. Ej^e very small, situated in the anterior third of the 

 length of the head. Teeth not very small, fixed, forming a series 

 round the entire edge of the upper and lower jaw ; they are pointed, 

 becoming more truncated at the apex with age, without being 

 notched. Dorsal fin more than half as long as the anal. The height 

 of the body is contained five times and a half in the total length 

 (vtdthout caudal), the length of the head four times. 



West Africa. 



a. Adult : stuffed. Zaire expedition. — Type of the species. 



b. Adult : skin in spirits. West Africa. Purchased of Mr. Dalton. 



c. Young. West Africa. Purchased of Mr. Stevens. 



d. Forty-five inches long : stuffed. West Africa. Purchased of 



Mr. Dalton. 



3. Mormyrops zambanenje. 



Mormyrus zambanenje, Peters, Monafsher. Akad. Wiss. Berl. 1852, 

 p. 275. 



D. 24-26. A. 42-47. Vert. 62. 

 Similar to M. anguilloides. Dorsal fin only half as long as the 

 anal. Mandible and intermaxillary with from thirty-two to thirty- 

 six teeth. {Pet.) 

 Mossambiquc. 



4. Mormyrops henryi. 



Isichthys henryi, Gill in Proc. Acad. Nat. Sc. Philad. 1862, p. 444. 

 D. 44. A. 42. L. lat. 135. 

 Head twice as long as high, snout scarcely projecting, convex ; 

 eye small. Teeth dilated, with the crown notched. The height of 

 the body is about one-tenth of the total length (without caudal), the 

 length of the head one-seventh. ( Gill. ) 

 Habitat ? 



The true affinities of this species appear to be with M. angvilloicles ; 

 however, no mention has been made whether or not it has teeth on 

 the roof of the mouth. 



