noun
geography cone; cone shell (Conus geographus)
A venomous sea snail with a cone-shaped shell, found in tropical Indo-Pacific waters. The Japanese name literally means 'potato shell'.
イモガイは猛毒を持つことで知られている。
The geography cone is known for its potent venom.
沖縄の海でイモガイを見つけた。
I found a cone shell in the sea off Okinawa.
アンボイナ is a specific type of cone shell (Conus geographus), often used interchangeably with イモガイ, but イモガイ is the broader term for cone shells.
From 芋 (いも, 'potato') + 貝 (がい, 'shellfish'), referring to the shell's potato-like shape.