_Zapus hudsonius_, Kermode and Anderson, Rep. Prov. Mus. Nat. Hist. for 1913:21, 1914. _Zapus princeps saltator_, Hall, Univ. California Publ. Zool., 37:10, April 10, 1931. _Type._--Female, subadult, skin and skull, No. 14408, Amer. Mus. Nat. Hist.; Telegraph Creek, British Columbia; obtained on August 23, 1897, by A. J. Stone. _Range._--Southern Yukon and southeastern Alaska south in British Columbia, to Bella Coola Inlet and Glacier. See fig. 46. Zonal range: Canadian and Hudsonian. _Description._--Size medium; back near Ochraceous-Buff, overlaid with black hairs forming dark dorsal band thickly flecked with ochraceous; sides lighter than back; lateral line usually distinct; belly pure white, sometimes faintly suffused with Ochraceous-Buff; tail bicolored, dark above and grayish-white below; hind feet grayish-white above; ears dark, edged with yellowish-white or Ochraceous-Buff; incisive foramina long, broad posteriorly; palatal bridge relatively short; postpalatal notch anterior to posterior border of last molars; proximal part of inferior ramus of zygomatic process of maxillary without enlarged median projection; zygomatic arch short. _Comparisons._--For comparison with _Zapus princeps kootenayensis_ and _Zapus princeps idahoensis_ see accounts of those subspecies. _Remarks._--The geographic range of _Z. p. saltator_, as here understood, includes several localities heretofore considered to be within the geographic ranges of neighboring subspecies. Specimens from Indianpoint Lake, 15 mi. N of Barkerville, British Columbia, for example, which Hall (1934:379) considered nearer _Z. p. princeps_, are here referred to _Z. p. saltator_, with which they closely agree in cranial measurements and color of pelage. One individual from Glacier, British Columbia, thought to be _Z. p. princeps_ by Preble (1899:32), is here considered to show intergradation between _Z. p. kootenayensis_ and _Z. p. saltator_ but is more nearly like _Z. p. saltator_ to which it is here referred. Intergradation between _Zapus princeps idahoensis_ and _Z. p. saltator_ is noted, in color and in shape and size of the incisive foramina, in a specimen from Vermilion Crossing, Kootenay, British Columbia. The majority of cranial characters show these animals to be referable to _Z. p. idahoensis_. Specimens from Mt. Revelstoke, 3400 ft., British Columbia, show intergradation in shape of auditory bullae, in breadth of pterygoid fossae, and in shape and size of antorbital foramina between _Z. p. idahoensis_ and _Z. p. saltator_. Resemblance in pelage and in the majority of cranial characters indicates that these specimens are best referred to _Z. p. saltator_. _Specimens examined._--Total, 187, distributed as follows: ALASKA: Taku River, 1 (MVZ).