SCIENTIFIC SOCIETIES. 279 



to a pair of Beatrix Antelopes, Oryx beatrix, presented by Col. E. C. Ross, 

 Consul-General for the Persian Gulf. 



Mr. Sclater exhibited and made remarks on two young specimens of 

 Darwin's Rhea, Rhea darivinii, obtained by Mr. A. A. Lane in the province 

 of Tarapaca, Northern Chili, and forwarded to Mr. H. H. James. 



Mr. Sclater exhibited and made remarks on a flat skin of a Zebra, 

 received from Northern Somaliland, which appeared to be referable to 

 Grevy's Zebra, Equus grevyi. 



Mr. A. D. Michael read a paper on a collection of non-parasitic Acarina 

 lately made in Algeria, where he had found the Acarina less abundant than 

 in England, and, indeed, almost absent from the true southern vegetation. 

 The species met with were not of larger size than the British. The col- 

 lection consisted almost entirely of Oribatidae, and contained examples of 

 46 species belonging to 15 genera. Amongst them were 8 species new to 

 science, 27 were British, and the rest South European. Amongst the new 

 species were a remarkable new Cceculus, there being previously only one 

 known species of this curious genus, which forms a separate family. There 

 was also a new Notaspis, which had not been found in Europe, but had 

 been received from the shores of Lake Winnipeg, in Canada. There were 

 likewise some very singular new species of the genus Damceus, and a triple- 

 clawed form of Nothrus anauniensis. 



Mr. Frank E. Beddard read a paper on the anatomy of the Fin-foot, 

 Podica senegalensis. The paper dealt chiefly with the myology and osteology 

 of this doubtful form. The conclusion arrived at was that it showed mast 

 resemblance to the Rails, but that in its muscular anatomy it agreed in many 

 particulars with the Grebes and Divers. 



Mr. 0. Thomas read some notes on the specimens of Mammals 

 obtained by Dr. Emin Pasha, C.M.Z.S., during his recent journey 

 through Eastern Africa, as exemplified in the specimens contained in two 

 collections presented to the British Museum and the Zoological Society 

 respectively. 



Mr. G. A. Boulenger read a paper containing the descriptions of two 

 new species of the Siluroid genus Arges, from South America. 



A communication was read from Mr. James Yate Johnson, containing 

 descriptions of five new species of fishes from Madeira. — P. L. Sclater , 

 Secretary. 



Entomological Society of London. 



June 4, 1890.— The Right Hon. Lord Walsingham, M.A., F.R.S., 

 President, in the chair. 



Mr. George William Carter, M.A., F.L.S., of Lime Grove, Knottingley, 

 Yorkshire; and Mr. R. Newstead, of The Museum, Chester, were elected 



