_Comparisons._--Somewhat more brownish than _S. v. longicauda_ but resembling it in size; skull slightly more flattened and rostrum broader. Larger than _S. v. elassodon_. Larger and relatively longer-tailed than _S. v. alascensis_.
_Records of occurrence._--ALASKA (Jackson, 1928:130): Warren Island; Coronation Island.
_Sorex longicauda elassodon_ Osgood, N. Amer. Fauna, 21:35, September 26, 1901.
_Sorex obscurus elassodon_, Elliott, Field Columb. Mus. Publ. 105, zool. ser. 6:450, 1905.
_Type._--Adult male, skin and skull; No. 100597, U. S. Biol. Surv. Coll.; obtained on June 13, 1900, by W. H. Osgood from Cumshewa Inlet, near old Indian village of Clew, Moresby Island, Queen Charlotte Islands, British Columbia.
_Range._--Alaskan and British Columbian islands from Admiralty Island south to Moresby Island.
_Diagnosis._--Size medium; average and extreme measurements of 4 from the type locality are: total length, 126, (119-131); tail, 53.5 (52-55); hind foot, 13.8 (13-14). Color dark.
[Illustration: FIG. 17. Probable geographic ranges of the subspecies of _Sorex vagrans_ on the coast of British Columbia and southeastern Alaska.
1. _Sorex vagrans malitiosus_ 2. _Sorex vagrans elassodon_ 3. _Sorex vagrans prevostensis_ 4. _Sorex vagrans calvertensis_ 5. _Sorex vagrans insularis_ 6. _Sorex vagrans longicauda_ 7. _Sorex vagrans obscurus_ ]
_Comparisons._--Smaller with relatively smaller tail and hind feet than _S. v. longicauda_, but resembling it in color. Smaller and paler than _S. v. prevostensis_ with relatively narrower rostrum. Larger, darker, and with relatively longer tail than _S. v. obscurus_. Resembles _S. v. alascensis_ but hind foot smaller and skull relatively narrower. Smaller than _S. v. malitiosus_.
_Remarks._--In the northern part of its range _S. v. elassodon_ occurs with _Sorex cinereus_. In the southern part it is the only shrew present.
ALASKA: near Killisnoo, Admiralty Island, 2 BS; Kupreanof Island, 15 BS; Petersburg, Mitkof Island, 10 BS; Woewodski Island, 4 AMNH; Kasaan Bay, Prince of Wales Island, 18 BS.
BRITISH COLUMBIA: Cumshewa Inlet, Moresby Island, 25 BS; Massett, Graham Island, 6 BS; Queen Charlotte Islands, 13 AMNH.
_Marginal Records._--ALASKA: Hawk Inlet, Admiralty Island (Jackson, 1928:131); Kupreanof Island; Mitkof Island; St. John Harbor, Zarembo Island (Jackson, 1928:131); Kasaan Bay, Prince of Wales Island; Duke Island (Jackson, 1928:131). BRITISH COLUMBIA: Massett, Graham Island, Queen Charlotte Islands; type locality; Langara Island, Queen Charlotte Islands (Jackson, 1928:131). ALASKA: Forrester Island (_ibid._); Rocky Bay, Dall Island (_ibid._); Shakan (really on Kosciusko Island) (_ibid._); Point Baker (_ibid._); Kuiu Island (_ibid._); Port Conclusion, Baranof Island (_ibid._).