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African Lake Fauna.—Report of the Committee, consisting of Dr. 
P. L. SctaTerR (Chairman), Dr. Joon Murray, Professor E. Ray 
LANKESTER, Professor W. A. HErpMAN, and Professor G. B. 
Howes (Secretary). 
On reaching Blantyre, Mr. T. E. Moore, to whom the Committee had 
entrusted the investigation of the fauna of Lake Tanganyika, being 
detained by the Nyasa war, took the opportunity of visiting Lake 
Shirwa, and made observations upon a Green Bacteriwm, which appears 
to swarm there. Proceeding subsequently to Tanganyika, he reports that 
the fresh-water Medusa there (Limnoclida tanganyike) is exceedingly 
abundant, and announces the discovery of an apparent dimorphism in 
certain specimens, with active proliferation of each of the dimorphic 
forms. He has also collected fishes, molluscs, crustacea, and plants, all 
of which bear out the conclusion that Lakes Tanganyika and Nyasa are 
quite distinct in origin, and has discovered a large fresh-water sponge. 
Mr. Moore has also made geological collections, with a special view to 
their bearings upon the origin of the great African Lakes. After visiting 
some of the smaller lakes, he proposes shortly to start on his return 
journey to this country. Under these circumstances the Committee pro- 
pose to defer their final report on the results arrived at by Mr. Moore 
until the next meeting of the Association, and ask that they may be 
reappointed in the meanwhile without any further grant. 
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