noun
yellow-edged lyretail; lyretail grouper; coronation cod
A species of grouper (Variola louti) with a distinctive lyre-shaped tail and yellow edges on the fins. Common in tropical Indo-Pacific waters.
ダイビング中にバラハタを見つけた。
I spotted a yellow-edged lyretail while diving.
バラハタは鮮やかな赤い体が特徴だ。
The lyretail grouper is characterized by its vivid red body.
ハタ is the general term for grouper; バラハタ is a specific species within that group.
The name likely combines バラ (bara, 'rose') from the reddish coloration and ハタ (hata, 'grouper'). The kanji 薔薇羽太 is ateji, chosen for sound and meaning rather than etymology.