WATER SHREW 



washed with pale brown on the chest; tail bicolor, upperside 

 like back, lower side white, tip dark. Total length, 6.4 

 inches; tail vertebras, 2.6 inches; hind foot, .8 inch. Found 

 in Nova Scotia. 



White-chinned Water Shrew. — Neosorex palustris albibarhis 

 (Cope). 

 Resembling typical palustris in pattern of coloration and in 

 size, but underparts washed with dusky. Upperparts 

 blackish slate, with light-tipped hairs; chin whitish; under- 

 parts suffused with dusky. Total length, 6.2 inches; tail 

 vertebrse, 2.7 inches; hind foot, ,76 inch. Found in " Boreal 

 parts of eastern North America from mountains of Penn- 

 sylvania and New York northward to Labrador." (Merriam) 



Great Lakes Water Shrew. — Neosorex palustris hydrobadistes 

 (Jackson). 

 Resembling typical palustris in general color, but slightly 

 smaller. Coloration more or less intermediate between 

 palustris palustris and palustris albibarbis. Total length, 6 

 inches; tail vertebrce, 2.5 inches; hind foot, .8 inch. Found 

 in "Minnesota, Wisconsin, and northern Michigan." 

 (Jackson) 



Rocky Mountain Water Shrew. — Neosorex palustris navi- 

 gator (Baird). 

 Smaller than typical palustris, coloration lighter. Upper- 

 parts slaty, mixed with hoary; underparts and tail as in 

 typical palustris. Found in "The Rocky Mountains and 

 outlying ranges from British Columbia to southern Colorado 

 and the Sierra Nevada of California south to the Sequoia 

 National Park." (Merriam) 



Alaska Water Shrew. — Neosorex alaskanus (Merriam). 



Smaller than navigator. Upperparts slaty, frosted with 

 light-tipped hairs; underparts and feet whitish; tail above, 

 dusky, below, whitish, tip dark. Total length, 6 inches; 

 tail vertebrce, 2.8 inches; hind foot, .74 inch. Found in 

 region about Glacier Bay, Alaska. 



Unalaska Water Shrew. — Neosorex hydrodromns (Dobson) . 

 Size very small for a Water Shrew. "Fur reddish brown 

 above, yellowish brown beneath; chin, throat, and chest 

 with grayish-tipped hairs; the base of the hairs both above 

 and beneath dark bluish gray." (Dobson) Total length, 4 

 inches; tail vertebrse, 1.8 inches; hind foot, .52 inch. Only 

 one specimen has ever been taken, as far as I can tell from 

 records, and this came from Unalaska Island, Alaska. 



Subgenus Atophyrax 



Characterized by coloration of underparts differing only 

 slightly from that of upperparts; no marked contrasts in color 

 (except in case of albiventer) . 



Bendire Water Shrew. — Neosorex bendirii bendirii (Merriam). 

 Resembling palustris in general size, but color pattern 



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