also: たけのこがい
noun
auger shell; terebra
Refers specifically to Terebra subulata, a long, slender sea snail resembling a bamboo shoot. Used mainly in biological or shell-collecting contexts.
タケノコガイは細長い形が特徴的な巻貝です。
The auger shell is a gastropod characterized by its slender shape.
I found a rare auger shell on the beach.