noun
spotstripe snapper; Lutjanus ophuysenii
A species of snapper native to the Western Pacific. The name is a technical fish name; in everyday contexts, it may be referred to simply as フエダイ or by its scientific name.
ヨコスジフエダイは西太平洋に生息する。
The spotstripe snapper inhabits the Western Pacific.
市場でヨコスジフエダイを見かけた。
I saw a spotstripe snapper at the market.
フエダイ is a more general term for snappers, while ヨコスジフエダイ refers specifically to the spotstripe snapper.
Compound of 横 (yoko, 'side'), 筋 (suji, 'stripe'), and 笛鯛 (fuedai, 'snapper'), referring to the horizontal stripes on the fish's body. The exact derivation is uncertain.