Lucien turned round to get hold of his rifle, intending to punish the ermine, although the little creature, in doing what it did, had only obeyed a law of nature. But the boy had also another design in killing it: he wished to compare it with some ermines he had seen while travelling upon Lake Winnipeg, which, as he thought, were much larger--one that he had caught having measured more than a foot in length, without including the tail. He wished, also, to make some comparison between it and the common weasel; for in its _winter dress_, in the snowy regions, the latter very much resembles the ermine; and, indeed, the trappers make no distinction between them.
With these ideas Lucien had grasped his gun, and was raising himself to creep a little nearer, when his eye was arrested by the motions of another creature coming along the top of the wreath. This last was a snow-white animal, with long, shaggy fur, sharp-pointed snout, erect ears, and bushy tail. Its aspect was fox-like, and its movements and attitudes had all that semblance of cunning and caution so characteristic of these animals. Well might it, for it _was_ a fox--the beautiful white fox of the Arctic regions.
It is commonly supposed that there are but two or three kinds of foxes in America; and that these are only varieties of the European species.
This is an erroneous idea, as there are nearly a dozen varieties existing in North America, although they may be referred to a less number of species. There is the Arctic fox, which is confined to the cold Northern regions, and which in winter is white.
The "sooty-fox" is a variety of the "Arctic," distinguished from it only by its colour, which is of a uniform blackish brown.
The "American fox" or, as it is commonly called, the "red fox," has been long supposed to be the same as the European red fox. This is erroneous. They differ in many points; and, what is somewhat curious, these points of difference are similar to those that exist between the European and American wolves, as already given.
The "cross fox" is supposed by the Indians and some naturalists to be only a variety of the last. It derives its name from its having two dark stripes crossing each other upon the shoulders. Its fur from this circumstance, and perhaps because the animal is scarce, is more prized than that of the red variety. When a single skin of the latter is worth only fifteen shillings, one of the cross fox will bring as much as five guineas.