336 THE ZOOLOGIST. 



curious "grizzled" appearance to the animal. This animal's 

 teeth showed it to be a fairly old individual. I have quoted else- 

 where Mr. E. H. Dickinson's statement with regard to the grey- 

 ness of the mountain Hares, all of which he believes to belong to 

 the common species. These slight differences would appear to 

 show that a moorland habit has not been without its effect upon 

 •certain mammalian types. 



Literature Consulted. ; 



Fleure, Prof. H. J. — " Note on the Light-coloured Local 

 Polecat " in the * N.U.T. Souvenir,' S. V. Galloway, Aberystwyth, 

 1911. 



Forrest, H. E. — 'The Vertebrate Fauna of North Wales,' 

 Messrs. Witherley & Co., 326, High Holborn, London. 



Harmer, Dr. S. F. — * Eeport on Cetacea,' British Museum of 

 Natural History, London, 1914, 



Jones, Prof. 0. T. — " The Physical Features of Central 

 Wales," S. V. Galloway, ' N.U.T. Souvenir,' Aberystwyth, 1911. 



Salter, Dr. J. H. — " The Mammals, Birds, and Butterflies 

 of North Cardiganshire," S. V. Galloway, 'N.U.T. Souvenir,' 

 Aberystwyth, 1911. 



