No. 148. 



ABSTRACT OF THE PROCEEDINGS 



OF THE 



ZOOLOGICAL SOCIETY OF LONDON.* 



October 26th, 1915. 



Prof. E. W. MacBride, D.Sc, F.R.S., Vice-President, 

 in the Chair. 



The Minutes of the last Scientific Meeting were confirmed. 



The Secretary read a Report on the Additions to the Society's 

 Menagerie during the months of June to September, 1915. 



Mr. R. I. PococK, F.R.S., F.Z.S., Curator of Mammals, 

 exhibited a series of burrows of trapdoor spiders from South 

 Africa, belonging to types never previously brought to England. 

 They were collected at Alicedale, nr. Grahamstown, by Messrs. 

 F. Thurston and F. Cruden, and were given to Mr. Pocoek by 

 the former gentleman, who at the same time presented to the 

 Society living examples of Stasimopus and Gorgyrella. 



Mr. D. Seth-Smith, F.Z.S., Curator of Birds, exhibited a 

 Mandarin Duck (^^Ex gcderictdata) in which an extra digit had 

 grown from the inner side of the right intertarsal joint. He 

 remarked that similar cases had been recorded by Bateson 

 (' Materials for the Study of Variation,' page 394), but he 

 believed that such abnormalities were rare, especially in birds 

 other than those long domesticated. 



Mr. Seth-Smith also shoAved a living hybrid Swinhoe's and 

 Silver Pheasant, which had been presented to the Society by 

 Mr. H. J, Elwes, F.R.S. It was a male, and a very handsome 

 bird, but, although somewhat resembling Swinhoe's Pheasant as 

 regards the head and neck, the back, rump, and tail were of a 



* This Abstract is published by the Society at its offices, Zoological Gardens, 

 Regent's Park, N.VV., on the Tuesday following the date of Meeting to which 

 it refers. It will be issued, along with the 'Proceedings,' free of extra charge, 

 to all Fellows who subscribe to the Publications ; but it may be obtained on the 

 day of publication at the price of Sixpence, or, if desired, sent post-free for 

 the sum of »SV.r Shillings per annum, payable in advance. 



