232 TEN YEARS IN SWEDEN. 



and size is much the same, although this is the smallest, and 

 the colour is different. But really, when studying these 

 little field mice, a man gets so confused by the different 

 shades of colour and size even in individuals of the same 

 genus that he is very likely to confound one with another. 

 Is confined to Lapland. 



50. L. KUTILUS, Pall. Kodbrun Mark Mus. F. 



Tail rather longer than the head, of an even thickness 

 throughout, covered with long hair. Ears very apparent. 

 Colour, red-brown above; on the sides blending into 

 yellow- grey; under parts dirty white; feet grey. Length 

 3-|- in.; tail 1-|- in. The innermost molar has four 

 lateral ridges inside. 



Is very like the last, but the ears are about 3-| lines 

 higher, and standing nearly half out of the fur. Confined to 

 Lapland and Finland; appears to be rarer than the last, and I 

 never met with it at Quickiock. 



Gen. Arvicola. 



The middle molars have three lateral edges on the outer 

 margin above, and three on the inner, of which two are like 

 those on the outer, the third smaller. 



51. AKVICOLA AGEESTIS, Sund. Gra brun mark Mus. The 



Short-tailed Field Mouse. D. F. 

 Tail about the length of the head, small, and taper- 

 ing ; ears scarcely appearing above the bushy fur, which 

 is dark grey-brown above ; belly, as well as the feet, 

 pale ash grey. Length 4 in. ; tail 1-J- in. 

 Is subject to much variation in colour and size. The female 

 always largest, and with a longer tail. Is met with all over 

 Scandinavia, at least as far up as Quickiock, Lapland. 



Gen. Lemmus. 



The streaks of the back molars run nearly parallel, in the 

 others zig-zag ; molars behind as broad as in front ; tail very 

 short, about equal to the length of half the head ; ears small, 

 entirely hidden in the fur. 



