MAMMALS 



255 



from the Pennsylvania mountains to Labrador; not common; in swamps 

 and wet fields and woods; Hudsonian and Canadian zones. 



N. navigator Baird. Body plumbeous above, 

 whitish beneath; length 150 mm.; tail 72 mm.; hind 

 foot 20 mm.: Rocky Mountaijis from British 

 Columbia to southern Colorado and the Sierra 

 Xevadas; southward to Sequoia Park. 



N. hendirii (Merriam). Color blackish brown 

 above and below; length 150 mm.; tail 68 mm.; 

 hind foot 20 mm.: western Oregon and Washington. 



Suh species of X . hendirii 



N. h. hendirii (Merr.). Klamath Basin, Oregon, 

 to Puget Sound. 



A^. h. palmeri (Merr.) . Color glossy black ; size 

 larger: western Oregon. 



N. h. albiventer (Merr.). Size larger; beneath 

 whitish: Olympic Mountains. 



3. Microsorex Coues. Similar to Sorex; body 

 very small; inner side of canines and second and 

 third incisors with a distinct secondary cusp; fourth 

 upper incisor very small and nearly hidden: 7 

 species and subspecies in the United States. 



M. hoyi (Baird). Body brown in color; length 

 90 mm.; tail 32 mm.; hind foot 10 mm.: northern 

 America from New England to British Columbia; 

 southward to Wisconsin and northern New York; 

 rare. 



M. winnemana Preble. Color grayish browni; 

 tail bicolor; length 78 mm.; tail 28 mm.; hind foot 

 9 mm.: northern Virginia; the smallest American 

 mammal. 



4. Blarina Gray. Short-tailed shrews. Body 

 rather stout, somewhat mole-like; ears hidden in the Fig. i^t.—Neo sorex 

 fur; teeth tipped with chestnut; tail about as long as 



the head; dentition 4/2, i/o, 2/1, 3/3: 3 species, 2 in the United States. 

 B. hrevicauda (Say). Mole shrew (Fig. 147), Body dark brown in 

 color; length 127 mm.; tail 26 mm.; hind foot 16 mm.: eastern and 

 central America; westward to western Nebraska; common in woods 

 and fields, bogs and swamps; emits a fetid odor. 



