noun
Japanese noctule
A species of bat (Nyctalus furvus) native to Japan. Primarily a zoological term.
コヤマコウモリは日本固有のコウモリです。
The Japanese noctule is a bat endemic to Japan.
Compound of 小山 (koyama, 'small mountain') and 蝙蝠 (kōmori, 'bat'). The exact naming origin is uncertain, but it likely refers to its habitat or appearance.