36 BANGS— NEW LABRADOR RODENTS ae ges 
average considerably larger than the type of P. wugava or the 
two adults from Godbout, Quebec, but as they agree in all other 
characters it seems unwise to separate them on the basis of the 
material now at hand.” Since then I have talked the matter 
over with Mr. Miller, and he thoroughly agrees with me that the 
form needs a name. 
The specimens from Godbout, Quebec, and from Fort Chimo, 
Ungava, agree in size and unquestionably belong to the same 
form. The new form inhabits the coastal strip of eastern Labra- 
dor, on the other side of the height of land. The height of land 
lying some distance back from the coast and extending parallel 
to it makes a natural division, that separates the forms of the 
coastal forest from those of the western watershed. ‘This division 
appears to have an effect on some of the smaller mammals, the 
Phenacomys being a case in point; and although too little is 
known about the distribution of mammalian life in interior Labra- 
dor to allow of any definite statement, still it seems safe to say 
that the coastal forest lies in a slightly different faunal area from 
the northern and western parts of the Labrador peninsula. 
The third new form is a lemming of the very interesting sub- 
genus Mictomys. So rare are these animals in eastern North 
America, that four specimens, belonging to three forms, are all 
that at the present time are known to exist in collections. The 
first of these was brought to notice by Mr. True, and was the 
type of the subgenus and of his species, Mictomys innuitus, from 
Fort Chimo; then I recorded one specimen from Hamilton Inlet, 
taken by Goldthwaite, calling attention to its not being typical 
innuitus; next Mr. Preble made his astonishing discovery of a 
very distinct species in the White Mountains of New Hampshire, 
taking a single individual, the type of his A/sctomys sphagnicola ; 
and now I record a fourth example from Lance au Loup, Labra- 
dor, and make it the type of a new subspecies. It and the Hamil- 
ton Inlet specimen belong to the same form, which differs from 
true inuitus in being larger, with a skull larger and slightly 
flatter, and with both incisor and molar teeth heavier. The new 
form is very different from sfhagnicola,* with which it needs no 
1 New Lemming Mouse from White Mountains, New Hampshire, Edward A. Preble, Proc. 
Biol. Soc. Washington, Vol. XIII, pp. 43-45, May 29, 1899. 
