COLLEZIONI ZOOLOGICHE FATTE NELL' UGANDA DAL DOTT. E. BAYON. XII. ON A THIRD COLLECTION OF FISHES MADE BY DR. E. BAYON IN UGANDA, 1909-1910 By G. A. BOULENGER, F. R. S. Plates I, 11. III. This collection , which has again been entrusted to me for study by the Director of the ( lenoa Civic Museum , is of special interest, not only as one of the largest ever made in Afi'ica, the number of specimens amounting to over 3()()(), but as furnishing the first information on the distriliution of Fishes in the Victoria Nile between the Ki|K)n I'"alls and the Miirchisoii I-"alls. It shows that the Fishes of that pait of the Nile are essentially the same as those of the Victoria Nyanza, therefore very ditterent from lliose of tlie Nile below the Murchison Falls. It also adds cunsideraldy to the list of species of the Nile system, as no less than 12 are here described as new. The collection was made at the following localities: Hussu . Lake Victoria. Kiduiiiiiio, (> miles frolli llussii. Jinja, Ripon Tails. Kakindii , Victoria Nile. Nakaviiggo Ferry, near Kakindu. Victoria Nile. Bululo, Lake Kioga. Mpologoma River, between Busoga and Hnkeddi.