Sicista caudata Thomas, 1907 . Proc. Zool. Soc. Lond., 1907:413.

TYPE LOCALITY: Russia, Sakhalin Oblast, Sakhalin Isl, 17 miles NW Korsakov .

DISTRIBUTION: Ussuri region of NE China and Primorski Kray, Sikhote-Alin range, and Sakhalin Isl, Russia.

COMMENTS: Sokolov et al. (1982,1987b) and Sokolov and Kovalskaya (1990) gave karyological and spermatozoal characters that distinguished this species from S. tianshanica, and from S. concolor (Sokolov et al., 1980) . See also comment under Sicista and S. concolor .