Tapestry Turban or Star Shell
Phylum: Mollusca, Class: Gastropoda, Order: Trochida, Family: Turbinidae, Genus: Lunella, Species: Lunella coronata · Turbinidae (Turban shell family) · Gastropod (univalve, whole spiral shell)
Species
Lunella coronata
Shell Type
Gastropod (univalve, whole spiral shell)
Family
Turbinidae (Turban shell family)
Size
Approximately 15 to 20 millimeters in length and width, which suggests a juvenile or small adult specimen. Fully grown adults typically range between 25 to 40 millimeters.
Color & Pattern
Cream to pale yellow base color adorned with distinctive olive-green to brownish spots, patches, and flame-like patterns. The spire exhibits fine spiral ridges with alternating light and dark bands. The colors appear completely natural and fresh.
Rarity
Common
Habitat
Found primarily in intertidal and shallow subtidal zones, residing on rocky shores, intertidal reefs, and among algal mats or tide pools.
Geographic Range
Indo-West Pacific region, including Indonesia (such as Maluku), the Philippines, northern Australia, and throughout the tropical Indian and western Pacific Oceans.
Description
A charming, robust small marine snail shell featuring a low-spired, rounded body whorl and distinctive sculptural nodes or crowns along the shoulder. The surface is textured with fine spiral cords and ribs, and the aperture is rounded with a pearly interior typical of the turban family.
Key Features
Rounded turban shape, prominent node-like crowns along the shoulder of the body whorl, distinct spiral threading, and a vibrant pattern of green and yellow-orange markings.
Collector Value
Low to moderate commercial value. While widely available and popular among casual beachcombers and beginner shell collectors, perfect color variants from specific localities like Maluku are delightful cabinet additions.
Condition Notes
Good to Fine condition. The shell is intact with bright natural coloration and minimal wear, retaining its sculptural integrity well.
Interesting Facts
Members of the Turbinidae family possess a heavy, calcareous operculum (trapdoor) often referred to as 'cat's eye' shells, which they use to seal the aperture tightly for protection against predators and desiccation during low tide.
Ecological Role
Herbivorous grazers that feed on microalgae and film algae on rocks, helping to maintain the balance of benthic algae populations in intertidal ecosystems.
Similar Species
Other members of the Turbinidae family such as Lunella cinerea or Turbo species, which can be distinguished by differences in node prominence, umbilical depression, and exact aperture shape.
Beach Finding Tips
Look among rocky intertidal zones, inside shallow rock pools, or sift through shell grit washed up in crevices during extreme low tides.
Notes
Maluku