Four new African Freshwater Fishes. 81 
longest dorsals. Pectoral pointed, ? the length of the head, 
not reaching the ventral, which does not extend beyond the 
vent. Caudal forked. Caudal peduncle not twice as long as 
deep. Scales 52-55 “=*, 3 between the lateral line and the 
root of the ventral. 10 to 12 more or less distinct dark 
vertical bars on each side of the body. 
Total length 180 millim. 
Several specimens from Wady Halfa, Upper Nile, collected 
by Mr. W. L. S. Loat. 
Chrysichthys Sharpie. 
Depth of body 53 times “in total length, length of head 
4 times. Head much depressed, $ longer than broad, nearly 
smooth above; snout broadly rounded, projecting a little 
beyond the lower jaw, measuring nearly 4 the length of the 
head and 3 the width of the mouth; eye oval, $ length of 
head, 2 interocular width ; occipital process smooth, a little 
longer than broad, in contact with the interspinous shield ; 
nasal barbel very thin, 3 the diameter of the eye; maxillary 
barbel 3 the length of the head, not reaching the base of the 
pectoral spine ; inner mandibular barbel 3 the length of the 
outer, which measures ? the length of the head. Vomero- 
pterygoid teeth forming a crescentic band hardly interrupted 
mesially, this band measuring nearly half the width of the 
band of premaxillary teeth. Dorsal 1 5; spine finely 
striated, not serrated, half as long as the head; longest soft 
ray 3 the length of the head. Adipose dorsal not longer than 
deep, its base half that of the rayed fin and 7 times in the 
distance intervening between the two fins. Anal V 13. 
Pectoral spine as long as dorsal spine, striated, with 12 rather 
strong retrorse serre on the inner edge. Ventral not reaching 
anal, Caudal deeply forked, with long pointed lobes, the 
longest rays nearly 3 times as long as the median. Caudal 
peduncle not quite twice as long as deep. 
Total length 370 millim. 
A single specimen, a skin, from Lake Mwero, presented to 
the British Museum by Mr. Altred Sharpe, C.b. 
Mastacembelus Greshoffi. 
Depth of body 19 times in total length, length of head 9 
times. Vent much nearer the end of the snout than the caudal 
fin, its distance from the head 3 times the length of the latter. 
Snout 3 times as long as the eye, which is a little shorter than 
the trifid rostral appendage; buccal cleft extending to below 
Ann. & Mag. N. Hist. Ser. 7. Vol. vii. 6 
