880 



possible information regarding its appearance in the locality mentioned 

 above; and during 1908 I have further received 3 specimens caught at 

 the same place on the 31. July, the 25. August, and the 7. September. 



The 4 specimens obtained up to the present have all been full- 

 grown males, well developed, and with a total length of between 163 

 and 171 mm (including the tail). All the specimens are in the Christi- 

 ania Museum. 



The measurements of the specimens are follows : 



Total length 



Body 



Tail. 



163 mm 

 165 - 

 171 - 

 171 - 



66 mm 



67 - 

 74 - 

 72 - 



97 mm Sept. 7, 1908. 



98 - July 31, 1908. 



97 - ..... Aug. 26, 1907. 



99 - Aug. 25, 1908. 



The length of the skull of Xo. 2 was 20 mm. 



The Norwegian form. The specimens from Opdal, when com- 

 pared with specimens from Jutland and Hungary, exhibit no dicided 

 differences in colour and dentition. 



In these Norwegian skulls (of full-grown specimens), the prae- 

 maxillo-frontal suture extends a little beyond the posterior margin of 

 the nasals; in the specimens from Jutland and the Carpathians (in the 

 Christiania and Copenhagen Museums) this suture extends sometimes 

 as far as, sometimes beyond, the posterior margin of the nasals. 



The tail in the Norwegian specimens varies in length, but is always 

 considerably longer than the head and body combined (in 2 specimens 

 almost IY2 times, in the others about Vj^ times). 



The stripe on the back in the 4 Norwegian specimens begins on 

 the forehead, where it widens out into a large, round spot, and then 

 runs, sharply and without any lighter borders, down to the root of 

 the tail. 



The yellowish gray ground-colour of the uj)per surface passes 

 without any decided colour-boundaries into the only very little lighter 

 reddish gray ot the under surface. On the sides the yellow longer hairs 

 predominate, while on the back some of the hairs are yellow^, some black. 



All the specimens hitherto obtained have been caught in one of the 

 branches of the Opdal, running north-west from the main valley into 

 the mountain group, Troldheim, (in the province of South Trondhjem). 



The floor of the valley, which is at a height of about 600 metres 

 above the sea, is narrow and enclosed by high mountains surmounted 

 by snow-clad peaks. 



The specimens were found at the farms during the summer months 

 while hay-making was going on, and had their haunts in the small mea- 

 dows that bordered on the uncultivated land which is here covered 



