406 MICROTIN^ 



Type. — Unknown. 



Type locality. — Vicinity of Rome, Italy. 



Range. — Central Italy ; at present known from the west 

 coast only. 



Characters. — Distinguished from A. t. italicus by its pale and 

 yellowish colour. 



Entire animal a light yellowish wood brown, faintly grizzled 

 with black on median dorsal region and darkened by the hair 

 bases on the under surface. Cheeks faintly more yellowish than 

 flanks. Feet light drab. Tail obscurely bicoloured, blackish 

 brown above, yellowish brown below. 



Skull indistinguishable from that oi A. t. italicus; cheek-teeth 

 apparently slightly smaller. 



For cranial and external measurements, see tables at end of 

 volume. 



Remarks. — It seems unnecessary to regard this form as more 

 than a geographical race of A. italicus, and therefore, like the 

 latter, it is treated here as a subspecies of A. ierrestris. The 

 material in the Museum is very jDoor; the only adult skull 

 before me is broken. 



Id. Arvicola terrestris illyricus Barrett-Hamilton. 



1899. Microtus musignani illyricus Barrett-Hamilton, Ann. Mag. 



N.H., [7], 3, p. 225 

 1910. Arvicola illyricus Miller, Proc. Biol. Sec. Washington, 23, p. 21 ; 



Trouessart, Fauna Mamm. d'Europe, 1910, p. x; Miller, Catal. 



Mamm. W. Europe, 1912, p. 741. 

 1910. Arvicola inusignanoi illyricus Trouessart, Fauna Mamm. 



d'Europe, p. 196. 



Type. — B.M., No. 94.1.5.1; adult male, skin and imperfect 

 skull, collected by Dr. Floericke. 



Type locality. — Bosnia (no exact locality). 



Range. — Bosnia ; limits of distribution not known. 



Characters. — Like A. t. italicus, but under parts with a decided 

 whitish wash. 



For external and cranial measurements, see tables at end of 

 volume. 



Remarks. — As Miller says, the Bosnian Water- Vole is so 

 similar to A. t. italicus that the two animals will not improbably 

 prove to be identical. 



7e. Arvicola terrestris rufescens Satunin. 



1908. Microtus terrestris rufescens Satunin, Mitt. Kauk. Mus., 4, 



pp. 90, 134. 

 1924. Arvicola terrestris rufescens Ognev, Rodentia of the North 



Caucasus, p. 40. 



Type. — Tiflis Museum. 



Type locality. — Pokun Syrt, upper course of the Podkumok, 

 Kara6ai-Territory. 



