APPENDIX IV 463 
examined three specimens in the collection of the Geological Survey 
of Canada, from ‘50 miles north of Fort George.” ‘Turner took 
quite a number at Fort Chimo, and Doane secured a large series 
at Black Bay. 
34. Microrus CHROTORRHINUS RARUS Bangs. Labrador rock 
vole. 
Microtus chrotorrhinus rarus Bangs. Proc. Biol. Soc. Wash., 
Vol. XII, p. 187. 1898. 
Type Locality. Black Bay, Labrador. 
Known only from Black Bay, where Doane secured a good series. 
35. FIBER ZIBETHICUS AQUILONIUS Bangs. Labrador muskrat. 
Fiber zibethicus aquilonius Bangs. Proc. New Eng. Zoél. Club, 
Vol--igp. il... 1899: 
Type Locality. Rigolet, Hamilton Inlet. 
Common throughout the southern wooded region, and found, 
though probably not in such abundance, north to the barren and 
to Fort Chimo. 
36. SYNAPTOMYS INNUITUS INNUITUS True. ‘True’s bog lemming. 
Mictomys innuitus True. Proc. Nat. Mus., Vol. XVII, No. 
999. Advance sheet. April 26, 1894. 
Type Locality. Fort Chimo, Labrador. 
Known at present only by the type. 
37. SYNAPTOMYS INNUITUS MEDIOXxIMUS Bangs. Intermediate 
bog lemming. 
Synaptomys innuitus medioximus Bangs. Proc. New Eng. 
Zo6l. Club, Vol. II, p. 40. 1900. 
Type Locality. L’Anse au Loup. 
This form, larger than, and otherwise different from, true S. 
innuitus of Fort Chimo, is at present known only by two specimens, 
—one, the type from L’Anse au Loup, and the other from Hamil- 
ton Inlet. 
38. DicrostoNyx HUDSONIUS Pallas. Hudson Bay lemming. 
Mus hudsonius Pallas. Glir. p. 203. 1778. 
Type Locality. Labrador. 
Found throughout the barrens and on the treeless hills, south at 
least, to Hamilton Inlet. 
39. ZAPUS HUDSONIUS LADAS Bangs. Labrador jumping mouse. 
Zapus hudsonius ladas Bangs. Proc. New Eng. Zoél. Club, 
Vol. I, p. 10. 1899. 
Type Locality. Rigolet, Hamilton Inlet. 
Abundant in the southern wooded region, about Black Bay, etc., 
a extending northward, along the coast, to beyond Hamilton 
niet. 
40. NAPA:OZAPUS INSIGNIS ABIETORUM Preble. Northern wood- 
land jumping mouse. 
