80 Mr. G. A. Boulenger on 
XII.—Deseriptions of Four new African Freshwater 
Fishes. By G. A. BouLENGER, F.R.S. 
Gnathonemus Abadit. 
Depth of body 32 times in total length, length of head 54 
times. Head very slightly longer than deep, with feebly 
curved upper profile ; snout ? the length of the head; mouth 
small, on a line with lower border of eye ; chin witha globular 
dermal appendage; teeth minute, conical, 3 in the upper 
jaw, 5 in the lower; eye rather large, § the length of the 
snout, which equals the interocular width. Dorsal 35, 
originating very slightly in advance of anal, its length 12 in 
its distance from the head. Anal 34, slightly nearer the root 
of the caudal than the base of the ventral, as long as the 
head, 12 as long as the ventral, reaching far beyond the base 
of the latter. Caudal scaled in its basal half, with pointed 
lobes. Caudal peduncle 3} times as long as deep, as long as 
er ae 
the head. 98 scales in the lateral line, 3 in a transverse 
series on the body, = in a transverse series between dorsal 
and anal, 16 round caudal peduncle. Brownish above, 
silvery white beneath. 
Total length 240 millim. 
A single specimen from Djebba, Upper Niger, presented to 
the British Museum by Capt. G. I’. Abadie. 
A very distinct species, more nearly allied to G. Ussher?, 
Gthr., and G. Greshoffi, Schilth. 
Barilius Loatt. 
Depth of body equal to length of head, 4 times in total 
length. Head twice as long as broad; snout obtusely 
pointed, projecting strongly beyond the lower jaw, 1} to 
twice as long as the eye, the diameter of which 1s contained 
5 to 6 times in the length of the head, 1} to twice in the 
interocular width; mouth extending to below the posterior 
third of the eye; no barbels; the naked space between the 
preopercle and the suborbitals about 4 the width of the 
latter. Gill-rakers very short, rudimentary. Dorsal III 
7-8, originating at equal distance from the occiput and the 
root of the caudal, ora little nearer the latter, the second half 
of its base above the anal; its anterior rays longest, 3 to 2 
the length of the head. Anal III 13-15, notched, the ante- 
rior rays much longer than the others, about as long as the 
