Order Insectivora Author Rainer Hutterer text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 69 130 book chapter http://doi.org/10.5281/zenodo.7353085 1-56098-217-9 7353085 Sorex gracillimus Thomas, 1907 . Proc. Zool. Soc. Lond., 1907:408 . TYPE LOCALITY: Russia , Sakhalin Isl, "Dariné, 25 miles [ 40 km ] N.W. of Korsakoff, Saghalien" . DISTRIBUTION: SE Siberia from S shore of the Sea of Okhotsk to N Korea and probably Manchuria; Sakhalin Isl; Hokkaido ( Japan ). SYNONYMS: hyojironis. COMMENTS: Subgenus Sorex . This species has long been included in minutus but its specific status is now widely accepted on the basis of penial (Dolgov and Lukanova, 1966) and cranial (Hutterer, 1979) morphology, karyotype ( Orlov and Bulatova, 1983 ), and allozyme data ( George, 1988 ). The inclusion of hyojironis follows Corbet (1978c) and is tentative.