Pied Lemming 
roof to the runways, but upon breaking into them abundant signs 
of life are to be seen and a trap set in such a situation is 
pretty sure to catch one or other of the several little animals 
which make these spots their home. For beside the lemming 
mouse and meadow mouse we find here also the red-backed 
mouse and the little shrew. 
In Indiana Mr. A. W. Butler finds the lemming mice frequenting 
stony hillside pastures, while their nests are placed under stumps 
or logs. 
Their food seems to consist of roots and tender shoots of 
grasses and rushes, though from the nature of their retreats it 
is practically impossible to gain much information as to their 
habits. Even when we are fortunate enough to catch a glimpse 
of one of the little animals it is usually merely a flash of brown 
fur, as he disappears with lightning speed along one of his 
passage ways. 
Varieties and Related Species of Lemming Mice 
1. Cooper’s Lemming Mouse. Synaptomys cooperi Baird. Range 
and description as above. 
2. Dismal Swamp Lemming Mouse. Synaptomys cooperi hela- 
letes (Merriam). Similar, but with larger head and more 
massive skull. 
Range. Replaces the common species in Dismal Swamp, Vir- 
inia. 
3. NEHER Lemming Mouse. Synaptomys fatuus Bangs. Smaller 
and darker, with narrower skull. 
Range. Northern New England, Ontario, Quebec and New 
Brunswick. The northern representative of Cooper's lem- 
ming mouse. 
4. Trues Lemming Mouse. Synaptomys innuitus True.  Re- 
sembles Cooper's lemming mouse in general appearance, but 
has a very different skull, with much narrower, paler, 
coloured incisor teeth. Female with eight mamme. 
Range. Labrador (Fort Chimo and Rigoulette). 
5. Preble’s Lemming Mouse. Synaptomys sphagnicola Preble. 
Similar to the last, but larger (5.25 inches long). 
Range. Base of Mt. Washington, Fabyans. N. H 
Pied Lemming 
Dicrostonyx hudsonius (Pallas) 
Length. 6 inches. 
Description, Summer. Gray above, more or less dappled with rusty 
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