Penepatella stellaeformis (species of limpet)
A species of limpet with a shell resembling an ivy leaf. Typically written in katakana as ツタノハガイ.
Penepatella stellaeformis attaches to rocks in the intertidal zone.
This shellfish is called tsutanohagai, and as the name suggests, it is shaped like an ivy leaf.
Katakana spelling is standard for this species name.
Kanji spelling; rarely used. The word is usually written in kana.
Alternate kanji spelling with okurigana; rarely used.
From 蔦の葉 (tsuta no ha, 'ivy leaf') + 貝 (kai, 'shellfish'), referring to the ivy-leaf-shaped shell.