CONTENTS OF PART XXI. 



SCIURID^E (Squirrels and Marmots) 



Genus Sciurus paoe 



The British or Light-tailed Squirrel . 697 



Genus Citellus . . . . . . .720 



ADDITIONS TO VOLUME II. 



SORICID^ 



The Islay Shrew . . .725 



RODENTIA ........ 728 



Genus Murida ....... 728 



The Foula Field Mouse ..... 728 



"Key" to British Species and Sub-Sbecies of Apodemus 731 

 Genus Rattus ....... 733 



The Small-Mammal Problem . . . -735 



The English local names have been revised in part by Mr W. W. Skeat, 

 M.A. {assisted by the late Professor W. W. Skeat), and in part by 

 Mr C. M. Drennan, M.A. Lond., late Scholar Emm. Coll. Camb. ; 

 the Celtic and Gaelic names by Dr E. S. Quiggin, M.A., Ph.D., 

 Fellow and Lecturer in Modem Languages and Celtic of Gonville 

 and Caius College, Cambridge ; while u list of Scottish Gaelic 

 names has been supplied by Mr C. H. Alston. Much information 

 has been taken from Mr G. S. Miller's recently published 

 " Catalogue of the Mammals of Western Europe^' the use of the 

 MS. and proof s of which before publication was kindly permitted 

 by the Trustees of the British Museum of Natural History. 



ILLUSTRATIONS 



Full-page. 

 The British Squirrel — Sciurus leucourus. 

 Hands and Feet of the Squirrel. 



Figures in Text, 

 Skull of Squirrel — Sciurus vulgaris. 

 Spoor of Squirrel in Snow. 



