Mammals of Korea: a review of their taxonomy, distribution and conservation status Author Jo, Yeong-Seok Author Baccus, John T. Author Koprowski, John L. text Zootaxa 2018 2018-11-19 4522 1 1 216 journal article 27944 10.11646/zootaxa.4522.1.1 58e0c7c5-75ec-4b1b-beb0-d01527f710f9 1175-5326 2610198 C24EFA8A-A5A0-4B06-A0A9-632F542B9529 Sicista caudata Thomas, 1907 —Long-tailed Birch Mouse Sicista caudata Thomas, 1907a p.413 ; Type locality- 17 miles Northwest of Korsakov, Sakhalin Island, Russia ; Won, 1968 p.167 ; Han, 1994 p.47 ; Won & Smith, 1999 p.24 ; Han, 2004c p.115 . S. concolor caudata : Yoon, 1992 p.88 . Range: Collected in the far northern area of Korea , BujeonCounty (main collection site), Jangjin Lake of Hamgyeongnam Province and Samjiyeon of Ryanggang Province ( Fig. 111 ). No record exists in South Korea . Remarks: Sicista caudata was considered a subspecies of S. concolor ( Corbet, 1978 ) . Karyological studies distinguished S. caudata from S. concolor ( Holden & Musser 2005 ) . Conservation status: The North Korean Red Data Book classified S. caudata as ‘Rare’ (MAB National Committee of DPR Korea 2002 ).