PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY- 
Family DIPODIDAE. 
Subfamily Zapodixae. 
Genus ZAPUS Coues.^ 
1875. Zapus Coues, Bull. U. S. geol. surv. ten*., 2d. ser., i, p. 
253. Type. — Dipus hudsonius Zimmermax^x. 
* Zapus hudsonius ( Zimmermann). 
1780. Dipus Jtudsoiiius Zimmekmaxx. Geogr. Gesch., ii, j). 
358. 
1875. Zapus hudsonius Coues, Bull. U. S. geol. surv. terr., 2d 
ser., I, p. 253. 
1885. Zapus hudsonius True, Proc. U. S. nat. mus., vii 
(1884), p. 600. 1885. 
Type locality. — Hudson Bay. 
Zapus hudsonius ladas Bangs. 
1899. Zapus hudsonius ladas Bangs, Proc. Kew England 
zool. club, I, p. 10. February 28, 1899. 
Type locality. — Rigoulette, Hamilton Inlet, Labrador. 
Zapus hudsonius alascensis Merriam. 
1897. Zapus hudsonius alascensis Merriam, Proc. biol. soc. 
Washington, xi, p. 223. July 15, 1897. 
Type locality. — Yakutat Bay, Alaska. 
Zapus hudsonius americanus (Barton). 
1799. Dipus americanus Barton, Trans. Amer. philos. soc., 
IV, p. 115. 
1899. Zapus hudsonius americanus Batchelder, Proc. New 
England zool. club, i, p. 6. February 8, 1899. 
Type locality. — Near Philadelphia, Pennsylvania. 
1 Revised by Preble, North Amer. fauna, No. 15. August 8,1899. 
