king helmet
marine snail
Also known as: Cassis tuberosa
Quick Summary
The king helmet (Cassis tuberosa) is a marine snail belonging to the family Cassidae. These snails are characterized by their large, thick shells, which feature a shieldlike inner lip. The shells of helmet snails, including the king helmet, are often used for carving cameos. Smaller, more rounded species within the Cassidae family are known as bonnet shells.12
Summary created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
2 Britannica Sources
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
