OREGON: _Hood River Co._: 2 mi. W Parkdale, 2 BS.
_Marginal Records._--BRITISH COLUMBIA: Rivers Inlet (Anderson, 1947:20); _Agassiz_ (Jackson, 1928:136); Chilliwack Lake. WASHINGTON: Barron; Lyman Lake (Jackson, 1928:137); Mt. Stuart (Dalquest, 1948:141); Mt. Adams. OREGON: _2 mi. W Parkdale_. WASHINGTON: Ilwaco (Jackson, 1928:137); Lund, Malaspina Inlet.
_Sorex obscurus longicauda_ Merriam, N. Amer. Fauna, 10:74, December 31, 1895.
_Type._--Adult male, skin and skull; No. 74711, U. S. Biol. Surv. Coll.; obtained on September 9, 1895 by C. P. Streator, from Wrangell, Alaska.
_Range._--The British Columbian and Alaskan coasts from Rivers Inlet north to near Juneau and also certain islands including Etolin, Gravina, Revillagigedo, Sergeif, and Wrangell.
_Diagnosis._--Size medium for the species, tail relatively long; average and extreme measurements of 17 specimens from the type locality are: total length, 128.4 (122-138); tail, 57.8 (53-66); hind foot, 15.1 (14-16). Color dark in summer and winter.
_Comparisons._--For comparison with _S. v. setosus_ see account of that subspecies. Larger and darker than _S. v. obscurus_ with which it intergrades east of the humid coastal region; larger and darker than _S. v. alascensis_ with which it intergrades in the Lynn Canal area; larger and darker than _S. v. calvertensis_ which occurs on Calvert Island and Banks Island, British Columbia; differs from _S. v. insularis_ of Smythe, Townsend, and Reginald islands in larger size and blackish rather than brown winter pelage; larger and relatively longer-tailed than _S. v. elassodon_ which occurs on most of the islands west of the range of _longicauda_; larger and relatively longer-tailed than _S. v. isolatus_.
_Specimens examined._--Total number, 151.
ALASKA: Wrangell, 54 BS; 8 AMNH; Crittenden Creek, 1 BS; Ketchikan, 2 BS; Loring, 11 BS.
BRITISH COLUMBIA: Port Simpson, 25 BS; Inverness, 15 BS; head of Rivers Inlet, 35 BS.
_Marginal Records._--BRITISH COLUMBIA: Great Glacier, Stikine River (Jackson, 1928:133). ALASKA: Burroughs Bay (_ibid._). BRITISH COLUMBIA: Bella Coola region (Anderson, 1947:19); head of Rivers Inlet; Spider Island (Cowan, 1941:101); Goose Island (Cowan, 1941:99); Princess Royal Island (Cowan, 1941:98); Pitt Island (_ibid._); Metlakatla (Jackson, 1928:133); Port Simpson. ALASKA: Gravina Island (_ibid._); Helm Bay (_ibid._); Etolin Island (_ibid._); Sergeif Island, mouth of Stikine River (_ibid._); Sumdum Village (_ibid._); Port Snettisham (_ibid._).