_Diagnosis._--Size medium; average and extreme measurements of 13 specimens from Calvert Island are: total length, 121.6 (109-129); tail, 54.0 (52-58); hind foot, 14.7 (13-15) (Cowan, 1941:106). Blackish or grayish in winter pelage. _Comparisons._--Smaller externally and cranially and paler in winter and summer than _S. v. longicauda_; for comparisons with _S. v. insularis_ see account of that subspecies. _Remarks_.--_S. v. calvertensis_ seems to be the only shrew on Calvert and Banks islands. _Records of occurrence._--BRITISH COLUMBIA (Cowan, 1941:103): Safety Cove, Calvert Island; Larson Harbor, Banks Island. _Marginal Records._--BRITISH COLUMBIA: Larson Harbor, Banks Island; type locality. =Sorex vagrans malitiosus= Jackson _Sorex obscurus malitiosus_ Jackson, Proc. Biol. Soc. Washington, 32:23, April 11, 1919. _Type._--Adult female, skin and skull; No. 8401; Mus. Vert. Zool.; obtained on May 21, 1909, by H. S. Swarth from east side of Warren Island, Alaska. _Range._--Warren and Coronation islands, Alaska. _Diagnosis._--Size medium; average and extreme measurements of 5 topotypes are: total length, 129.8 (126-135); tail, 56.4 (53-61); hind foot, 15.4 (15-16). Color brownish in summer, brownish rather than blackish in winter. _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 vagrans elassodon= Osgood _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_ ]