88 RODENTIA. 



\ritli line haire of bi>o\m-sTey. mixtxi with others of a rusty 

 yellow shade : the tail, which is more th:ui one-third of 

 the Kxiy in length, is not narrowed near the base : it is 

 elotheii aK^ve with sm^ill dark brown h:\ir?. beneath with 

 white haiis tipj^ed with grey. The fur of the body is dark 

 rosty brown abore. light grey with a yellowish tinge on 

 the sides, and underneath a decided white, contrasting with 

 the d:irkor cx^lour of the sides : the tips of the hairs on the 

 back hiire a metallic gloss. The young animals aiv duller 

 in colour than the adults. The head is more lengthened 

 than in the other s|>ecie*. l>eing sh.'ij>ed like that of the 

 Rat, 



Entire length, 6 inches 7 lines, exclusive of the tail, 

 which is 1 inch 10 lines. — F. M. 



Foimd by Professor Blasius in 1S4<) in the Xorth of 

 Russia, on the Bwina ; has been obtained also from Nor- 

 way, the Baltic Provinces of Russia, and finom Siberia, as 

 well as from Southern Russia, 



Arricola Savii 



Arvkiait im»rf¥js. De Selt?.. 1S4<): P. Geitais. Zool. « Pal^coatoL 



Frano- 

 X erva^ss, Bros. Faun. ItaL (fiffuredV 



Descriptiox. — With fourteen pairs of ribs, shaped like A, 

 art'alis. Ears much shorter than the fur. which is of an 

 earthy greyish-brown colour above, and ashy beneath ; in 

 some individuals the head and back are obscurely red- 

 brown : the snout is thick :vnd blunt : eyes very small : tail 

 rather less than one-third of the length of the l>ody. hairy, 

 brown above, whitish below ; feet greyish white, with rather 

 strong n:uls : the thumb less rudimeutary th.*m in A. artw/** 

 and the other nearly allied species. The teats are four in 

 mimber, none of them pectoral. 



