noun
bladder moon shell; Glossaulax didyma
A species of sea snail. Typically written in katakana as a biological name.
ツメタガイは砂浜に生息する巻貝の一種です。
The bladder moon shell is a type of sea snail that lives on sandy beaches.
The origin of the name ツメタガイ is uncertain. The kanji spellings 砑螺貝 and 津免多貝 are rare and likely ateji.