Neurotrichus gibbsii [Bryant], Zoe. 1:359, February, 1891.
Neurotrichus gibbsii gibbsii [Miller], U. S. Nat. Mus. Bull., 79:11, December 31, 1912.
Type.—Obtained at Naches Pass, 4,500 ft., Pierce County, Washington, by G. [Gibbs] on July 15, 1854 (see [Dalquest] and [Burgner], 1941); type in United States National Museum.
Racial characters.—Size relatively large; tail relatively long; foreclaws straight on ventral surface.
Measurements.—Two females from Tye, 4,000 ft., Stevens Pass, King County, average: total length, 121.5; length of tail, 45; length of hind foot, 18.
Distribution.—The Cascade Mountains, from British Columbia south, and Destruction Island, Jefferson County. Records of occurrence are Baker Lake (J. M. E.), Tye (M. V. Z.), and Mount Rainier (Mount Rainier Ntl. Park Mus.)
Remarks.—Shrew-moles are present on Destruction Island, a small island in the Pacific off the coast of Jefferson County. These moles are large, and are like gibbsii. It is thought, however, that this resemblance is due to convergent evolution rather than a once-continuous range with gibbsii. It is significant that a shrew (Sorex trowbridgii destructioni), the only other native land mammal on the island, differs from its mainland counterpart in much the same way as does Neurotrichus g. gibbsii from Neurotrichus g. minor.
Neurotrichus gibbsii minor [Dalquest] and [Burgner]
Neurotrichus gibbsii minor [Dalquest] and [Burgner], Murrelet, 22:12, April 30, 1941.
Type.—Obtained on the University of Washington Campus, Seattle, King County, Washington, by W. W. [Dalquest] on May 19, 1940; type in the Museum of Vertebrate Zoölogy.