Key to species of Genus Martes in Korea

1 Tail 2/3 of head-body length; neck yellow; chin white; face and ears black............................... M. flavigula

- Tail <2/3 of head-body length............................................................................ 2

2 Summer neck pelage yellow; ears yellow or white; face and chin black (white in winter pelage); tail 50% of head-body length.......................................................................................... M. melampus

- Neck brownish-black; neck patch pale, not sharply demarcated; tail 40% of head-body length................ M. zibellina