North Pacific squirrelfish
A species of squirrelfish (Sargocentron spinosissimum) found in the North Pacific. The name is a specific biological term.
The North Pacific squirrelfish is nocturnal and hides in rock crevices during the day.
Kanji spelling is rare and may not be widely recognized; the katakana form is strongly preferred.
The name イットウダイ (一等鯛) literally means 'first-class sea bream', but the exact reason for this naming is uncertain. It may refer to the fish's appearance or perceived quality.