Tsushima marten
A subspecies of the Japanese marten (Martes melampus tsuensis) endemic to Tsushima Island.
See also: テン
The Tsushima marten is a rare animal that lives only on Tsushima Island.
Katakana spelling is common for this animal name; usually written in kana.
Kanji spelling is rare; the word is usually written in kana.
From 対馬 (Tsushima) + 貂 (ten, 'marten'). The exact derivation is straightforward; the name refers to the marten subspecies found on Tsushima Island.