THE 



GEOLOGICAL MAGAZINE. 



NEW SERIES. DECADE IV. VOL. X. ~ 



No. XII.— DECEMBER, 1903. 



OK-IG-IJiTJLL -A-IRTIGLIES. 



I. — A New Egyptian Mammal {ARSiy'diTHEnivM) from" the 



Fayum. 



(PLATES XXIII AND XXIV.) 



FROM time to time during the last two years brief accounts 

 of a remarkable series of vertebrate remains, from the Middle 

 and Upper Eocene of the Fayum district of Egypt, have been 

 published in the pages of this Magazine. The species hitherto 

 described include a number of highly interesting animals, but of the 

 most extraordinary of all, viz. Arsiiwitheriiim Zitteli, no figure has 

 yet appeared in this Journal. We are therefore glad to take 

 the opportunity of remedying this omission by availing ourselves of 

 the kind permission of the Editor of The Sphere to reproduce two 

 photographs of the skull of this animal, which appeared in 

 the pages of that journal on September 12th, 1903, as illustrations 

 of a short article by Professor E. Ray Lankester, which is the first 

 account of Arsinditherium published in this country, and from which 

 some extracts are given below. 



Arsinditherium Zitteli was found about two years ago by 

 Mr. H. J. L. Beadnell, who published in Cairo a preliminary 

 notice with figures of the type skull and some other specimens.^ 

 Since then more complete specimens have been found both by him 

 and by Dr. C W. Andrews, and it is one of these, now in the 

 British Museum of Natural History, Cromwell Road, London, of 

 which photographs are given. A complete account both of this and 

 of the other extinct animals of the Faytim will be shortly published 

 in a monograph, which will include figures and descriptions of the 

 material both in London and Cairo. 



The deposits in which these remains occur have been described 

 by Schweinfurth, Beadnell, Blanckenhorn, and others. The lower 

 beds, consisting mainly of clays, sandstones, and limestones, are for 

 the most part of marine or littoral origin, while the upper beds, 



1 Survey Department Public "Works Ministry, Cairo, 1902. A prelinriuary note 

 on Arsinoitherium Zitteli, Beadn., from the Upper Eocene strata of E^ypt, By 

 Hugh J. L. Beadnell, F.G.S., F.R.G.S. ; 8vo ; pp. 1-4, pis. i-vi. 



DECADE IV. — VOL. X. — NO. XII. 34 



