310 MAMMALS. 



5. Tamais striatus lysteri (Richardson). Lyster's chipmunk. — 

 This species was rather rare on Sand Point, but quite common in the 

 sand region east of Caseville. It was not observed on Ston\' Island. 



6. Marmota monax (Linnaeus). "Woodchuck.— The woodchuck 

 was common throughout the sand region, and burrows were rather 

 numerous on the ridges. 



7. Mus musculus (Linnaeus). House mouse. ^ — It is hardh' neces- 

 sary to state that this species was found about the fisherman's shacks 

 throughout the sand region. 



8. Peromyscus leucopus noveboracensis (Fischer). Deer mouse. 



Although not as plentiful as the Baird's field mouse, this species 



was found rather commonly on Sand Point. It was taken in traps 

 set both in the woods and along the beach, but was most common 

 under log piles and old boats along thfe shore. The only other place 

 that it was taken was in a cedar swamp at the east end of Push Lake, 

 but it probably occurs throughout the sand region. 



9. Peromyscus maniculatus bairdi (Hoy and Kennicott). Baird's 

 field mouse. — This mouse is probably common in suitable habitats 

 throughout the sand region. It was abundant in the cb-ift Avood 

 along the beach on the north side of Sand Point (Pis. la, IVa), parti- 

 cularly on the fossil beaches, and a single specimen was taken from 

 a milk snake found on the north shore of Stony Island. It was not 

 found elsewhere, but was not looked for east of Caseville. The sandy 

 beach is the principal habitat in which we have seen JMichigan and 

 Ontario specimens of this species. 



10. Microtus pennsylvanicus (Ord). Pennsylvania meadow vole. 

 —This species was not seen anywhere in the sand region, although 

 looked for in the more favorable places. It was, however, taken in 

 the clay country just southeast of Rush Lake. 



11. Fiber zibethicus (Linnaeus). Musk rat. — This was not an 

 uncommon species about the edges of the inland lakes and ponds. 

 It was found both on Sand Point and at Rush Lake. 



12. Zapus hudsonius (Zimmerman). Woodland jumping mouse. 



The onh' specimens of this species seen were a female and seven 



v^oung that were taken from a burrow in a low sand ridge at the east 

 end of Rush. Lake, on August 12. 



13. Sylvilagus floridanus mearnsi Allen. Mearns' cottontail.^ 

 The cottontail was not very common in the sand region, but was of 

 general distribution. The scarcity is probably to be attributed to 

 the abundance of great horned owls, eagles and foxes. It was also 

 found on Stony Island and in the clay country at Rush Lake. 



14. Lepus americanus Erxleben. American hare. — The writer 

 thought he observed this hare two or three times on Sand Point, but 



