114 Dr. A. Giintlier on new Fishes 



Gaboon. 5 inches long. 



I do not retain tlie genus Brachyalestes, as the last two species 

 would be separated from those most nearly allied to them by the 

 technical character on which that genus was founded. 



Alestes leuciscus, sp. n. 

 D. 10. A. 17. L. lat. 26-27. L. transv. 5i/3i. 

 The height of the body is contained thrice and one-fourth in 

 the total length (without caudal), the length of the head thrice 

 and two-thirds. The origin of the dorsal fin is exactly opposite 

 that of the ventrals. The pectoral terminates close to the ven- 

 tral. Bright silvery, with a very indistinct dark humeral spot 

 and a second at the root of the caudal. Iris golden. 



Two specimens, 2^ inches long, from West Africa ; purchased 

 of a dealer. 



Sarcodaces odoe (Bl.). 



Bossumprah River (Mr. Ussher). This fish has fifty scales in 

 the lateral line, and not sixty, as stated in ' Fish.' v. p. 852. 



Xenocharax, g. n. [Characin). 



(Group Crenuchina.) Dorsal fin rather long, placed in the 

 middle of the length of the body, above the ventrals. Anal not 

 elongate. Body compressed, rather elevated, covered with rather 

 small scales ; lateral line present ; belly rounded. Cleft of the 

 mouth rather wide. Intermaxillary and mandible with a double 

 or treble series of small bicuspid teeth ; a few teeth in the 

 maxillary. Nostrils close together. Gill-openings wide; the 

 gill-membranes not attached to the isthmus. Gill-rakers long, 

 setiform. 



Xenocharax spilurus, sp. n. Plate III. fig. B. 



D. 18. A. 13. V. 11. L. lat. 73. L. transv. 10/15. 



The height of the body is contained twice and two-thirds in 

 the total length (without caudal), the length of the head thrice 

 and one-fourth. Jaws equal in length ; the maxillary extends 

 to below the front margin of the large eye. Root of the ventral 

 below the middle of the dorsal. Silvery ; body with about four- 

 teen narrow blackish transverse bands. A large round black 

 spot on the root of the caudal. 



Gaboon. 4 inches long. 



Distichodus notospilus, sp. n. 

 D. 16-17. A. 15-16. L. lat. 39. L. transv. 7/9. 

 The height of the body is two-fifths of the total length (with- 



