Sorex unguiculatus Dobson, 1890 . Ann. Mag. Nat. Hist., ser. 6, 5:155.

TYPE LOCALITY: Russia, "Saghalien [Sakhalin] Island; Nikolajewsk, at the mouth of the Amur River." Ognev (1928:204) and Ellerman and Morrison-Scott (1951:52) both restricted the type locality to Sakhalin Isl .

DISTRIBUTION: Pacific coast of Siberia from Vladivostok to the Amur, and the islands of Sakhalin (Russia) and Hokkaido (Japan); from Corbet (1978c).

SYNONYMS: yesoensis.

COMMENTS: Subgenus Sorex . The inclusion of yesoensis follows Abe (1967). Skaren (1964) suggested a relationship with obscurus (= monticolus) but this was rejected by Siivonen (1965) and Hoffmann (1971).