MILLER AND REHN : NORTH AMERICAN MAMMALS. 131 
Fiber spatulatus Osgood. 
1900. Fiber spatulatus Osgood, North Amer. fauna, no. 19, 
p. 36. October 6, 1900. 
Type locality. — Lake Marsh, Yukon, Canada. 
* Fiber zibethicus (Linnaeus). 
1766. \_Castor'] Linnaeus, Syst. nat., xii ed., i, p. 
79. 
1817. \_Fibe7'] zibeticus Cuvier, R^gne anim., i, p. 192. 
1885. Fiber zibethicus True, Proc. U. S. nat. mus., vii 
(1884), p. 596. 1885. 
Type locality. — Eastern Canada. 
Fiber zibethicus aquilonius Bangs. 
1899. Fiber zibet]vicus aquilonius Bangs, Proc. New Eng¬ 
land zool. club, I, p. 11. February 28, 1899. 
Type locality. — Rigoulette, Hamilton Inlet, Labrador. 
Fiber zibethicus pallidus Mearns. 
1890. Fiber zibethicus jjallidus Mearns, Bull. Amer. mus. 
nat. hist., ii, p. 280. February 21, 1890. 
Type LOCALITY.— Fort Verde, Yavapai County, Arizona. 
Fiber zibethicus rivalicius Bangs. 
1895. Fiber zibethicus rivalicius Bangs, Proc. Boston soc. 
nat. hist., xxvi, p. 541. July 31, 1895. 
Type locality. — Burbridge, Plaquemines Parish, Louisiana. 
Genus SYNAPTOMYS Baird.^ 
1857. ■ ^Sy7%aptomys Baird, Mamm. N. Amer., p. 558. Type.— 
jSy7iaq)tomys cooperi Baird. 
1 Revised by Merriam, Proc. biol, soc. Washington, x, pp. 55-64. March 19,1896. 
