description Horned Helmet (Cassis cornuta) Overview
Cassis cornuta, commonly known as the Horned Helmet, is a large marine gastropod mollusk in the family Cassidae, native to the Indo-Pacific region. It possesses a heavy, thick shell with distinctive horn-like projections, making it one of the largest members of its family. The species is carnivorous, feeding primarily on echinoderms such as sea urchins. Its shell has been historically valued for carving cameo jewelry due to its contrasting layers of color.
help Horned Helmet (Cassis cornuta) FAQ
Why is Cassis cornuta called the Horned Helmet?
The shell has distinctive horn-like projections that extend from its heavy, thick structure. These projections give the species its common name and make it easy to separate from smoother helmet shells.
Where does the Horned Helmet live?
Cassis cornuta is native to the Indo-Pacific region. It is a marine gastropod associated with tropical coastal waters.
How large can the Horned Helmet become?
It is one of the largest members of the helmet-snail family, Cassidae. Its shell is notably heavy and thick, although the exact maximum size varies among references and specimens.
Is the Horned Helmet related to the King Helmet?
Yes. Both Cassis cornuta and Cassis tuberosa are helmet snails in the family Cassidae. The Horned Helmet is an Indo-Pacific species, while the King Helmet is associated with tropical Atlantic and Caribbean waters.
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