70 DR. A. GUNTHER ON FISHES [Feb. 19, 
3. On some Fishes from the Kilima-njaro district. 
By Dr. A. Ginruer, F.R.S., F.Z.S. 
[Received February 1, 1889.] 
(Plate VIII.) 
The fishes of the systems of the great African rivers flowing 
north-, west-, or eastwards are sufficiently well known to allow us to 
make a safe inference as to the forms which inhabit the fresh waters 
of the centre of the continent. Although many new species or even 
new genera may be discovered, it can hardly be expected that they 
will add a new distinct feature to what we already know of the 
general character of the freshwater fauna of Tropical Africa. 
The, difficulties of preserving fishes and of transporting them to 
the coast will long continue to be serious obstacles to our detailed 
acquaintance with Central-African fishes ; and therefore it is all 
the more the duty of the naturalist at home to pay due attention to 
the specimens, however few in number, which the traveller has been 
able to get through the perils of a long and tedious overland journey. 
From the fresh waters of Kilima-njaro Dr. G. A. Fischer, who was 
sent by the Geographical Society of Hamburg into the Masai-country, 
was the first to bring some fishes to Europe. They were described 
by Dr. J. G. Fischer in the ‘Jahrbuch der Hamburger wissen- 
schaftlichen Anstalten,’ vol. i. 1884, p. 27, et segg. Dr. Fischer 
seems to have obtained them from the waters flowing westwards from 
the western slope of the mountain-range, whilst the two British 
travellers mentioned below have collected on the southern and south- 
eastern rivers. This may account, at least partly, for the differ- 
entiation of the species obtained by those travellers. 
Dr. Fischer’s specimens belonged to four species, viz., Chromis 
mossambicus, Gthr. (closely allied to the common and widely spread 
Chromis niloticus), a species of Clarias which Dr. J. G. Fischer 
considers to be the Clarias mossambicus of Peters, and two new 
species of Barbels, Barbus pagenstecheri and Barbus neumayert. 
To these four species I can now add four others. 
1. The fish first to be described here was discovered by Mr. Henry 
C. V. Hunter, F.Z.S., in Lake Chala, the Crater Lake of Kilima-njaro, 
Mr. Hunter writes that no other fish was found by him in the lake, 
and that the fish does not exist in any of the other fresh waters round 
the mountain. 
The specimen is a dried skin, 113 inches long, and ina good state of 
preservation: it belongs to a form closely allied to Chromis and 
Hemichromis, but readily distinguishable from both those genera by 
the presence of four anal spines. This new genus may be called 
Oreochromis, and the species Oreochromis hunteri. 
OREOCHROMIS HUNTERI, sp. nov. 
B. 5. DS PER ASS ORS 152 LL lat. 35. dL. transy. 5/15. 
10° 
The height of the body is nearly equal to the length of the head, 
