The Collaborative International Dictionary
marten \mar"ten\, n. [From older martern, marter, martre, F. martre, marte, LL. martures (pl.), fr. L. martes; akin to AS. mear[eth], meard, G. marder, OHG. mardar, Icel. m["o]r[eth]r. Cf. Foumart.]
(Zo["o]l.) Any one of several fur-bearing carnivores of the genus Martes (formerly Mustela), closely allied to the sable. Among the more important species are the European beech marten or stone marten ( Martes foina); the pine marten ( Martes martes); and the American marten, or sable ( Martes Americana), which some zo["o]logists consider only a variety of the Russian sable.
The fur of the marten, used for hats, muffs, etc.
Wikipedia
The American marten or American pine marten (Martes americana) is a North American member of the family Mustelidae, sometimes referred to as the pine marten. The name " pine marten" is derived from the common but distinct Eurasian species of Martes. It differs from the fisher (Martes pennanti) in that it is smaller in size and lighter in colour.
Usage examples of "american marten".
The martens from Northern Asia and the Mountains of Kamtschatka are much superior to the American, though in every pack of American marten skins there are a certain number which are beautifully shaded, and of a dark brown olive color, of great depth and richness.