noun
many-formed cerith; Batillaria multiformis
A species of small sea snail. The name is primarily used in biological or ecological contexts.
干潟でウミニナを観察した。
I observed many-formed ceriths on the tidal flat.
The name literally means 'sea snail' (海蜷), but the exact derivation is uncertain. The kanji 蜷 refers to a type of spiral shellfish.