NEOSOREX. 379 



a. — nnid^ator. {^Neosorex), Baird, Mamm. N. Am., 1857, pp. 11-12, 

 pi. xxvi. 



paluslris, Merr. N. Am. Faun., i8gi, No. 5, p. 35 (nee Richard). 



Type locality. Stated to be Fort Vancouver, Washington, but 

 probably the type came from northern Idaho. 



Geogr. Distr. Rocky Mountains from British Columbia to 

 southern Colorado; Sierra Nevada of California south to Sequoia 

 National Park. 



GenL Char. Similar to y. palushis, but smaller. Feet large and 

 broad; tail longer than head and body, with a distinct pencil at tip; 

 third lateral tooth smaller than the fourth. 



Color. Above sooty brown mixed with hoary; beneath grayish 

 white; tail silver white beneath, dusky above. 



Measurements. Average of 8 specimens from Preyor Mountains, 

 Montana. Total length, 148.4; tail vertebra^ 71.5; hind foot, 20.4; 

 (Merriam). 



h. — alasknnus. Merr. Proc. Wash. Acad. Scien., 1900, p. 18. 



Ty/e locality. Point Gustavus, Glacier Bay, Alaska. 



Genl. Char. Similar to N. p. navigator, but smaller. 



Color. Above slate gray; under parts and feet whitish; tail 

 above and tip dusky; beneath whitish. 



Measurements. Total length, 145 ; tail vertebra?, 65 ; hind 

 foot, 18.5. 



564. albibarbis. {Neosore.x), Cope, Proc. Acad. Nat. Scien. Phil., 



1862, pp. 188-189. 



Type locality. Profile Lake, Franconia Mountains, New Hamp- 

 shire. 



Geogr. Distr. Pennsylvania northward to Labrador. 



Genl. Char. Similar to X. palustris, but dusky beneath. Skull 

 and teeth smaller, the anterior unicuspids narrower, and molars less 

 deeply excavated behind. 



Color. Above blackish slate mixed with light tipped hairs; 

 beneath dusky; tail blackish above, whitish below on basal two- 

 thirds. 



Measurements. Total length, 153; tail vertebra, 66.6; hind 

 foot, 19. 



565. hydrodomus. {.Sorex), Dobson, Ann. and Mag. Nat. Hist., 6th 



scr.. vol. 4, i88g, pp. 372-374. 

 Type locality. Unalaska Island, Aleutian Islands, Alaska. 

 Gen. Char. Third incisor larger than fourth; fore and hind 

 feet fringed on both sides, especially dense on outer margins. 



Color. "Fur reddish brown above, yellowish brown beneath; 



