68 Dutcher Mammals oj Mt. Katalidin, Maine, 



Synaptomys cooperi (Baird). Cooper Lemming Mouse. 



Two species of the genus Synaptomys, representing both subgenera 

 occur in the Katahdin region. 



Of the subgenus Synaptomys, one specimen was taken August 3, 

 in a small grassy clearing in the woods at an altitude of about 500 feet, 

 that seems, on comparison with material in the Biological Survey Col 

 lection, to be intermediate between 8. cooperi and S.fatuus, but which 

 from its habitat I refer to the former. 



Synaptomys sphagnicola (Preble). Preble Lemming Mouse. 



Of the subgenus Mietomys two examples were taken, August 28, and 

 August 30, respectively, under some balsam scrub by a spring on 

 the table land, at an altitude of 4500 feet. 



A thorough and painstaking search was made of the entire top of the 

 mountain, and a line of nearly ninety traps was carefully set, baited, 

 and tended, but the only microtines secured were these two lemmings. 

 Strange to say the entire top of the mountain was covered with old sign, 

 without doubt of this species. 



Fiber zibethicus (Linn.). Muskrat. 



Exceedingly abundant. While canoeing one day, I paddled up 

 within a few feet of one asleep at the water's edge. While we 

 were watching him he half opened his eyes, apparently looking directly 

 at me, and leaning down lapped the water at his feet, then closed his 

 eyes and relapsed into slumber. If his eyes had seen, his cerebrum had 

 not interpreted, and he did not recognize his dangerous position. A 

 slight noise sent him to the bottom like a flash. 



flicroius pennsylvanicus (Ord.). Meadow Mouse. 



Contrary to expectation the meadow mice were rather scarce. 

 When I arrived on July 10, the meadow lands available for their 

 homes were many inches under water, and a search of the higher land, 

 revealed but few signs of any kind. A few were found along the rivers, 

 one at 1500 feet, and one at Chimney Pond, at 3000 feet. 



Evotomys gapperi (Vigors). Redbacked Mouse. 



Fairly common in the higher woods, up to 3500 feet, and probably on 

 the lower levels too, though none were caught there. 



