Water rat, Water mouse. The vole (Arvicola terrestris)is now a protected species. Has rich chestnut brown fur, with blue underfur. It has been re-classified and is now known as ;
http://en.wikipedia.org/wiki/European_Water_Vole (http://en.wikipedia.org/wiki/European_Water_Vole)
I don't have a skin right now. Some nice person nicked the last two skins I had at a demo.
This animal is still red listed http://www.iucnredlist.org/apps/redlist/details/2149/0 (http://www.iucnredlist.org/apps/redlist/details/2149/0)
Subtitute, Mole, Muskrat, Hare or Rabbit underfur. For the brown fur, red quirrel, fox , or hare mask. The result is a mix of blue-grey and chestnut brown fur. Mole fur alone is not a good substitute, unless only the underfur is to be substituted.
TL
MC