noun
Ezo flying squirrel; Pteromys volans orii
A subspecies of the Siberian flying squirrel endemic to Hokkaido. Often referred to by its katakana name.
エゾモモンガは北海道の森林に生息している。
The Ezo flying squirrel inhabits the forests of Hokkaido.
夜行性のエゾモモンガは、木から木へ滑空する。
The nocturnal Ezo flying squirrel glides from tree to tree.
Refers to flying squirrels in general, while エゾモモンガ specifies the Hokkaido subspecies.
From 蝦夷 (Ezo, old name for Hokkaido) + 鼯鼠 (momonga, flying squirrel). The katakana spelling is standard for this animal name.