blue mussel; common mussel
Scientific/common name for Mytilus edulis, a widely consumed marine bivalve.
The blue mussel is a bivalve native to Europe.
Blue mussels are commonly farmed along this coast.
Rarely used kanji form; 貽貝 is an uncommon spelling for イガイ (mussel).
From ヨーロッパ (Europe) + イガイ (mussel). イガイ is a native Japanese word for mussels, written here in katakana as part of the compound.