NORTH AMERICAN LAND MAMMALS. 205 



t*Synaptomys helaletes gossii (Coucs). 



1877. Arvicola iSynaptomys) gossii Coues, Monogr. N. Amer. 

 Rodentia, p. 235 (Published as synonym of Synapto7nys coop- 

 eri, but name stated to apply to Kansas specimens, description 

 and measurements of which are printed on p. 236). 



1896. Synaptomys helaletes gossii Merriam, Proc. Biol. Soc. 

 Washington, vol. 10, p. 60. March 19, 1896. 



Type Locality. — Neosho Falls, Woodson County, Kansas. 



According to Rhoads (Proc. Acad. Nat. Sci. Philadelphia, 1897, p. 307, 

 June, 1897), this should stand as Synaptomys cooperi gossi. 



Subgenus Mictomys True. 



1894. Mictomys True, Diagnoses of new North American Mam- 

 mals, p. 2. April 26, 1894. (Reprint: Proc. U. S. Nat. Mus., 

 vol. 17, p. 242. November 15, 1894.) Type, Mictomys innu- 

 itus True. 

 Synaptomys andersoni Allen. 



1903. Synaptomys ( Mictomys) andersoni Allen, Bull. Amer. Mus. 

 Nat. Hist., vol. 19, p. 554. October 10, 1903. 



Type Locality. — ^Level Mountain, northern British Columbia. 



*Synaptomys borealis (Richardson). 



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



tl902. Synaptomys (Mictomys) hvllatus 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 Allen. 



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



Nat. Hist., vol. 19, p. 555. October 10, 1903. 

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



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, 



