noun
blackback butterflyfish
A species of butterflyfish (Chaetodon melannotus) with a black back and white body. The Japanese name literally means 'dawn butterflyfish'.
アケボノチョウチョウウオはインド太平洋のサンゴ礁に生息している。
The blackback butterflyfish inhabits coral reefs in the Indo-Pacific.
ダイバーはアケボノチョウチョウウオの群れを見つけた。
The diver spotted a school of blackback butterflyfish.
The general term for butterflyfish; アケボノチョウチョウウオ is a specific species within this group.
From 曙 (あけぼの, 'dawn') + 蝶々魚 (ちょうちょううお, 'butterflyfish'), referring to the dawn-like coloration or pattern of this butterflyfish species.