Sorex hoyi Baird, 1857. Mammalia, in Repts. U.S. Expl. Surv., 8(1):32.

TYPE LOCALITY: USA, "Racine, Wisconsis."

DISTRIBUTION: N taiga zone of Alaska, Canada and the USA, with S outliers in the montane forests of the Appalachian and Rocky Mtns.

SYNONYMS: alnorum, eximius, intervectus, montanus, thompsoni, washingtoni, winnemana.

COMMENTS: Formerly in Microsorex, which is a synonym of subgenus Otisorex, according to George (1988). Includes thompsoni (Diersing, 1980b). Reviewed by Long (1974, Mammalian Species, 33) and Junge and Hoffmann (1981).