This beautiful 5-cent stamp from the Cayman Islands features the Mangrove Root Oyster (Isognomon alatus), a marine bivalve that attaches to the submerged roots of mangrove trees in tropical coastal waters. The illustration captures the oyster shells and the vibrant marine life around them, emphasizing the ecological richness of the islands’ mangrove habitats.

Issued during the reign of Queen Elizabeth II, as shown by her silhouette in the upper right corner, this stamp forms part of a series highlighting the Cayman Islands’ marine flora and fauna. It reflects both the biological diversity and environmental heritage of the Caribbean region—an appealing subject for collectors interested in marine life and British Commonwealth issues.