Cassis tuberosa (Family: Cassidae) — Also known as the “King Helmet,” this magnificent helmet shell is prized for its heavy structure, richly patterned surface, and broad sculptural form. Measuring 160 mm, this impressive specimen from Venezuela displays the bold elegance and distinctive character that make Cassis tuberosa one of the most sought-after shells in the Cassidae family. Weight: 0.620 kg.