lOO NEW YORK STATE MUSEUM 



Synaptomys cooperi Baird Cooper's lemming 



1857 Syn ap torn ys cooperi Baird, Mamm. N. Am. p. 558. (Probably 



northern New Jersey or southern New York) 

 1896 Synaptomys cooperi Merriam, Proc. biolog. soc. Washington, 



19 Mar. 1896. 10 : 58. 

 General appearance of a common meadow mouse, but tail very much shorter; 

 color grizzled gray and yellowish brown thickly sprinkled with black; belly 

 soiled whitish. Total length, 120 (4f ) ; tail vertebrae, 18 (1^) ; hind foot, 18 

 (li). (cooperi; name from that of William Cooper) 



Cooper's lemming is locally common in cool bogs and marshy places 

 from Massachusetts to Virginia, west to Michigan and Indiana. 



Synaptomys fatuus Bangs Bangs' s lemming 

 1896 Synaptomys fatuus Bangs, Proc. biolog. soc. Washington. 9 Mar. 



1896. 10: 47. (Lake Edward, Quebec) 

 1896 Synaptomys fataus Merriam, Proc. biolog. soc. Washington. 19 



Mar. 1896. 10*: 58 



Like S. cooperi but with smaller front teeth and less heavily built anterior 

 part of skull. Total length, 120 (4f ) ; tail vertebrae, 21 (|) ; hind foot, 18 

 (H). (f ^tuus; Lat., clumsy) 



Bangs's lemming is common in bogs and wet woods of the Hudsonian 

 zone and upper part of the Canadian zone from New Brunswick to the 

 north shore of Lake Superior, south to New Hampshire. A single 

 specimen has been recorded from the Catskills. 



Synaptomys innuitus True Triie's lemming 



1894 Mictomys innuitus True, Diagnoses of new North American mam- 

 mals. 26 Ap. 1894. p. 3. Reprinted in Proc. U. S. nat. mus. 15 Nov. 1894. 

 17 : 243. (Fort Chimo, Ungava, Labrador) 



1896 Syn aptomys innuitus Merriam, Proc. biolog. soc. Washington. 

 19 Mar. 1896. 10:61. 



Like S. cooperi but smaller. Total length 115 (4^); tail vertebrae, 17 

 (ic); hind foot, 17 (is); greatest length of skull, 19 (f). (innuitus; N. Lat., 

 Eskimo) 



True's lemming is at present known from northern Labrador only 

 (Fort Chimo and' Hamilton inlet) 



Synaptomys sphagnicola Preble Preble's lemming 

 1899 Synaptomys sphagnicola Preble, Proc. biolog. soc. Washington. 

 29 May 1899. 13 : 43. (Fabyaus, Coos co., New Hampshire) 

 Like S. cooperi but larger. Total length, 132 (5|) ; tail vertebrae, 24 

 (IS); hind foot, 20 (f); greatest length of skull, 27 (liV). (sphagnicola; N. 

 Lat., an inhabitant of sphagnum) 



Preble's lemming is at present known from the type specimen only, 

 taken in the Canadian forests near the foot of Mt Washington, New 

 Hampshire. 



