Uperotus clava (species of shipworm)
A specific marine bivalve mollusk that bores into wood. The name is a compound of ぼろ (rag), うちわ (fan), ふなくいむし (shipworm).
The Uperotus clava is a type of bivalve that bores holes into submerged wood.
フナクイムシ is the general term for shipworms (family Teredinidae), while ボロウチワフナクイムシ refers specifically to the species Uperotus clava.
Katakana spelling is the practical written form for this species name; usually written in kana.
Ateji spelling; extremely rare and impractical for learners. It is usually written in kana.
The name is a compound of ぼろ (rag), うちわ (fan), and ふなくいむし (shipworm), likely describing the appearance of the shell or the animal. The exact derivation is uncertain.