14 MAMMALIA. 



66. Mus decumanus PalL Brown Rat. 



Universally distributed about human habitations, and very 

 abundant. 



Sub-fam. ARVICOLIN&. 



67. Arvicola amphibia (Z.). Water Vole. 



Generally distributed, common. The Black variety occurs 

 in a few localities, and there is reason to believe that some 

 at least of the 'Black Rats' reported are of this variety of 

 the Water Vole. 



68. Arvicola agrestis De Selys. Common Field Vole. 



Generally distributed, abundant. 



69. Arvicola glareolus (Schreb.). Red Field Vole. 



Reported from a few localities scattered irregularly over the 

 whole county; probably more general, but not usually 

 distinguished from the Common Field Vole. 



Sub-order DUPLICIDENTATA. 

 Fam. LEPORIDJE. 



70. Lepus europaeus Pall. Common Hare. 



Generally distributed, common. Attains to a great size on 

 the high wolds. White and pied varieties are not unfre- 

 quently reported. 



71. Lepus variabilis Pall. Varying Hare. 



72. Lepus cuniculus Z. Rabbit. 



Generally distributed, very abundant. Introduced on Peny- 

 ghent and other places. Black and silver-grey varieties 

 are of not unfrequent occurrence. 



