Asian voles: Clethrionomys rex
External body dimensions (Kaneko, 1994):  Head and body length, 112 - 143 mmTail length, 44 - 60 mmHind foot length sine-unguis, 20.0 - 22.4 mmWeight, 33 - 62 g Mammae formula (Kaneko, 1994): 2 + 0 + 2 = 8 |
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| Distribution (Nakata, 2000): Hokkaido mainland, Rebun Is., Rishiri Is., Daikoku Is. |