ORDER RODENTIA Bowdich, 1821
Four native families and one invasive Family Echimyidae, representing 21 species and 16 genera, occur in Korea. We regard the report of Petaurista leucogenys (Sciuridae) as unlikely because it is based on an imported skin from Japan (Jones & Johnson 1965). The possible presence of Apodemus sylvaticus (Muridae) is a misidentification of A. peninsulae (Han 2004c) . Ellerman and Morrison-Scott (1951) included Korea within the distribution of Allactaga sibirica (Dipodidae) . However, the record for Korea was based on specimens from Jehol, China (Jones & Johnson, 1965; Corbet 1978).