1909.] SICISTA SUBTILIS IN NORWAY. 5 



Accordingly, Sicista subtilis occurs in a not inconsiderable 

 area of the southern mountain tracts, from the districts south of 

 the Trondhjem fjord in the north, and downwards over the Gud- 

 brandsdals Mountains at least to the Valders Mountains in the 

 south, or between latitudes 63° and 61° 10'. Probably it really 

 has an even wider extent. 



Our knowledge of Sicista subtilis and its occurrence in 

 Norway till now embraces only the years 1907 — 9. Some of the 

 observers have, however, been able to state that it has been 

 met with earlier in their district, but without having attracted 

 further attention. Thus, it was with certainty observed in Opdal 

 in August 1900. 



The Norwegian Form. Specimens from Norway exhibit no 

 essential differences of colour, structure of the skutl, or other 

 morphological characteristics, from specimens found in Jutland 

 or Hungary. 



Colour. The upper part of the body is always greyish brown 

 with a yellowish tinge, the belly a lighter grey, without any 

 sharply defined limit. The dorsal stripe of all Norwegian speci- 

 mens begins on the front, where as a rule it expands into an 

 oval spot, and thence runs directly (without lighter borders at 

 the sides) almost to the base of the tail. 



On the flanks the brownish yellow hairs are more prominent, 

 whilst on the back they are more mixed with black. The ears 

 are grey, the feet white. 



The tail is covered with thin, short and somewhat pro- 

 truding hairs, so that all the rings shine through; the upper side 

 is a light grey-brown, the underside greyish-white. The vibrissae 

 are black in the uppermost rows, white in the lowest, and those 

 between of mixed colour (base of the hair black, the remainder 

 white). 



The short hairs covering the extremity of the nose are 

 more or less dark grey-brown; but between the point of the 

 nose and the ear the specimens before us has no black longi- 

 tudinal stripe. 



