Martes americana The currently accepted scientific name for the American marten is Martes americana. Martes americana ssp. Fishers live in similar habitat, have similar tracks and are darker in color than pine martens.
Stone martens are non-native species and are also about the size of the male pine marten.
They are pale gray to brown with a white throat patch. Marten male and female are different sizes. The female is about three-fourths the size of the male. The female pine marten measures about 18-22 inches and stands about 6 inches high. Their fur is soft and thick, varying in color from pale buff or yellow to reddish or dark brown.