488 APPENDIX IV 



This northern form has, so far as I know, been taken in the Labra- 

 dor peninsula only at Fort Chimo, Ungava, whence it ranges west 

 at least to Godbout, Quebec. 



29. PHENACOMYS CELATUS CRASSUS Bangs. South Labrador 



phenacomys. 

 Phenacomys celatus crassus Bangs. Proc. New Eng. Zool. Club, 



Vol. II, p. 39. 1900. 

 Type Locality. Rigolet, Labrador. 



This is a southern form occurring in the eastern forest belt from 

 L'Anse au Loup north at least to Hamilton Inlet : it is much larger 

 than true P. celatus, being the largest member of the genus yet known. 



30. EVOTOMYS UNGAVA Bailey. Ungava red-backed mouse. 

 Evotomys ungava Bailey. Proc. Biol. Soc. Wash., p. 130. 1897. 

 Type Locality. Fort Chimo, Labrador. 



Probably restricted to the barrens and semi-barrens. Turner 

 reported the species to be abundant at Fort Chimo, but apparently 

 did not send many specimens to Washington. 



The differences between this and the next species appear to be 

 as great as between any two members of the genus Evotomys. 



31. EVOTOMYS PROTEUS Bangs. Hamilton Inlet red-backed mouse. 

 Evotomys proteus Bangs. Proc. Biol. Soc. Wash., p. 137. 1897. 

 Type Locality. Rigolet, Hamilton Inlet, Labrador. 



Very abundant at Hamilton Inlet, and probably throughout the 

 wooded regions. Goldthwaite took a large series at Rigolet, and 

 Doane found it very abundant in the woods, in the neighbourhood 

 of Black Bay. 



32. MICROTUS PENNSYLVANICUS LABRADORius Bailey. Small 



Labrador vole. 

 Microtus pennsylvanicus labradorius Bailey. Proc. Biol. Soc. 



Wash., p. 88. April 30, 1898. 

 Type Locality. Fort Chimo, Ungava, Labrador. 

 This little vole probably occurs only in the barrens and semi- 

 barrens. It can be told from M. enixus by its smaller size, shorter, 

 more hairy tail, by its smaller, flatter skull, with shorter rostrum 

 and nasals, and smaller, shorter, incisive foramina, differently 

 shaped zygoma, and larger auditory bullae. There are, probably, 

 colour differences also, but I have seen alcoholic specimens only. 

 Turner took many specimens at Fort Chimo. 



33. MICROTUS ENIXUS Bangs. Larger Labrador vole. 

 Microtus enixus Bangs. Am. Nat., Vol. XXX, p. 105. 1896. 

 Type Locality. Rigolet, Hamilton Inlet, Labrador. 



Probably common throughout all the wooded regions, its range 

 extending north to the semi-barrens and meeting that of M. penn- 

 sylvanicus labradorius. 



Goldthwaite took a large series at the type locality. I have 



