blackback butterflyfish
A species of butterflyfish (Chaetodon melannotus) with a black back and white body. The Japanese name literally means 'dawn butterflyfish'.
The blackback butterflyfish inhabits coral reefs in the Indo-Pacific.
The diver spotted a school of blackback butterflyfish.
Katakana spelling is standard for this fish name; usually written in kana.
Kanji spelling using 蝶々; very rare and mainly of academic or historical interest.
Kanji spelling using 蝶蝶; very rare and mainly of academic or historical interest.
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.