NORTH AMERICAN RECENT MAMMALS. 395 



*Synaptoinys borealis (Richardson). 



1828. Arvicola horealis Richardson, Zool. Journ., vol. 3, p. 517. 



tl902. Synaptomys (Mictomys) huUatus Preble, Proc. Biol. Soc. 



Washington, vol. 15, p. 181. August 6, 1902. (Trout Rock, 



near Fort Rae, Great Slave Lake, Mackenzie, Canada.) 



1907. Synaptomys horealis Osgood, Proc. Biol. Soc. Washington, 



vol. 20, p. 49. April 18, 1907. 

 Type Locality. — Fort Frankhn, Great Bear Lake, Mackenzie, 

 Canada. 



* Synaptomys chapmani AUen. 



1903. Synaptomys {Mictomys) chapmani Allen, Bull. Amer. 



Mus. Nat. ffist., vol. 19, p. 555. October 10, 1903. 

 Type Locality. — Glacier, Selkirk Range, British Columbia, 



Canada. 



t*Synaptomys dalli Merriam. 



1896. Synaptomys {Mictomys) dalli Merriam, Proc. Biol. Soc. 



Washington, vol. 10, p. 62. March 19, 1896. 

 Type Locality. — Nulato, Alaska. 



t*Synaptomys innuitus innuitus (True). 



1894. Mictomys innuitus True, Diagnoses of new North Ameri- 

 can mammals, p. 3. April 26, 1894. (Reprint: Proc. U. S. 

 Nat. Mus., vol. 17, p. 243. November 15, 1894.) 



1896. Synaptomys {Mictomys) innuitus Merriam, Proc. Biol. 

 Soc. Washington, vol. 10, p. 61. March 19, 1896. 



Type Locality. — Fort Chimo, Ungava, Canada. 



*Synaptomys innuitus medioximus Bangs. 



1900. Synaptomys {Mictomys) innuitus medioximus Bangs, Proc. 

 New England Zool. Club, vol. 2, p. 40. September 20, 1900. 

 Type Locality. — L'Anse au Loup, Strait of Belle Isle, Labrador, 

 Canada. 



t*Synaptomys sphagnicola Pre])le. 



1899. Synaptomys {Mictomys) sphagnicola Preble, Proc. Biol. 



Soc. Washington, vol. 13, p. 43. May 29, 1899. 

 Type Locality. — Fabyans, Coos County, New Hampshire. 



t*Synaptomys truei Merriam. 



1896. Synaptomys {Mictomys) truei Merriam, Proc. Biol. Soc. 



Washington, vol. 10, p. 62. March 19, 1896. 

 Type Locality. — Skagit Valley, northwestern Washington. 



t*Synaptomys wrangeli Merriam. 



1896. Synaptomys {Mictomys) wrangeli Merriam, Proc. Biol. 



Soc. Washington, vol. 10, p. 63. March 19, 1896. 

 Type Locality. — Wrangeli, Alaska. 



