Mya arenaria oonogai; soft-shell clam subspecies
A subspecies of soft-shell clam; used in biological contexts.
The Mya arenaria oonogai is found in tidal flats of northern Japan.
Katakana spelling is standard for this species name; usually written in kana.
Kanji spelling is rarely used; the katakana form is preferred.
The name likely derives from 大野 (large field) + 貝 (shellfish), but the exact origin is uncertain.