4.-)0 SOREX. 



Dusky Shrew. 



Type locality. Timber Creek, Salmon River Mountains, Idaho. 

 Altitude, 8,200 feet. 



Geogr. Distr. British Columbia, and mountains of western 

 Washington, Montana, Wyoming, Utah, and Colorado, south in 

 CaUfornia, to Mt. Whitney. 



(I. Sorcx obsriirns Jo/i gira/irhi s Merriam. 



Sorex obscurus longicauda Merr., N. Am. Faun., No. 10, 1895, p. 74. 



Sorex obscurus longicaudus Elliot, Syn. N. Am. Mamm., F. C. M. 

 Pub., II, 1901, p. 372. Zool. Ser. 

 Long-tailed Shrew. 



Type locality. Wrangel, Alaska. 



Geogr. Distr. Coast of southeast Alaska from Wrangel southward ; 

 also the coast of Washington, including Puget Sound and Skagit 

 Valley. 



h. SoTcx ohscuTiis ventT(tliH Merriam. 



Sorex obscurus ventralis Merr., N. Am. Faun., No. 10, 1895, P- 75- 

 Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. Pub., iv, 

 Pt. II, 1904, p. 550, fig. Lxxxi. Zool. Ser. 

 Chestnut-bellied Shrew. 



Type locality. Cerro San Felipe, State of Oaxaca, Mexico. Alti- 

 tude, 10,000 feet. 



Geogr. Distr. State of Oaxaca, Mexico. 



c. Soi-cv obscurus chtssodoTi (Osgood). 



Sorex longicauda elassodon Osgood, N. Am. Faun., 'No. 21, 1901, 



P- 35- 

 Queen Charlotte Shrew. •> 



Type locality. Cumshewa Inlet, Moresby Island, Queen Charlotte 

 Islands. 



Geogr. Distr. Queen Charlotte Islands, British Columbia, Canada. 



Geiil. Char. Similar to 5. o. longicaudus, but smaller and tail 

 shorter. 



Color. Like 5. o. longicaudus , underparts paler. 



Measurements. Total length, 123 ; tail vertebras, 52 ; hind foot, 14. 



(1. Snrex ohscurns pm'ostensis (Osgood). 



Sorex lo^igicauda prevostensis Osgood, N. Am. Faun., No. 21, 

 1901, p. 35. 

 Prevost Island Shrew. 



Type locality. Prevost Island, Queen Charlotte Islands, British 

 Columbia, Canada. 



