Zapus princeps, Preble, N. Amer. Fauna, 15:23, August 8, 1899 (part—the part from Glacier, British Columbia).
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: