114 Dr. A. Giinther on new Fishes 
Gaboon. 5 inches long. 
I do not retain the 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. 0. 
D.10. A.17. L. lat. 26-27. L. transv. 54/34. 
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, 24 inches long, from West Africa; purchased 
of a dealer. 
Sarcodaces odoé (Bl.). 
Bossumprah River (Mr. Ussher). This fish has fifty scales in 
the lateral line, and not sixty, as stated in ‘ Fish.’ vy. p. 352. 
XENOCHARAX, g. n. (Characin). 
(Group Crenucuina.) 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. Guill-openings wide; the 
gill-membranes not attached to the isthmus. Gill-rakers long, 
setiform. 
Xenocharax spilurus, sp.n. Plate IIL. fig. B. 
D.18. A.18. V.11. L.lat.73. LL. transy. 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. 1. 
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. 
