Sorex (Sorex) gracillimus subsp. gracillimus Thomas 1907
Sorex (Sorex) gracillimus subsp. gracillimus Thomas 1907, Proc. Zool. Soc. Lond., 1907: 408.
Type Locality: Russia, Sakhalin Isl, "Dariné, 25 miles [40 km] N.W. of Korsakoff, Saghalien".