www.fgks.org   »   [go: up one dir, main page]

 
Photo: Close-up of a cowrie

Once used as status symbols among Fiji rulers, the golden cowrie is prized by shell collectors.

Photograph by Victor R. Boswell, Jr

Map

Map: Golden cowrie range

Golden Cowrie Range

Fast Facts

Type:
Invertebrate
Diet:
Omnivore
Size:
4 in (10 cm)
Did you know?
Ancient Romans used the word porculi, or little pigs, to refer to cowries. The word eventually transformed to porcelain to describe fine pottery.
Size relative to a tea cup:
Illustration: Golden cowrie compared with tea cup

The golden cowrie is a marine snail named for its brilliant orange shell. It is among the largest of the world's 250 known cowrie species, reaching four inches (ten centimeters) in length.

Rare and reclusive, these mollusks spend most of their lives hiding under rocks in the cracks and crevices of reefs in the South Pacific. They come out only at night to feed on sponges and algae.

Golden cowries are egg-shaped with a flat base and a narrow opening. Like other cowries, their shells are smooth and highly polished. They protect their glossy finish by wrapping their brightly colored mantle lobes nearly completely around their shells when they move.

Golden cowrie shells have been used as currency and religious symbols throughout the South Pacific. On the island of Fiji, they were worn on a necklace by a chieftain as a symbol of status and rank.

Golden cowrie shells are among the hardest shells to find and are prized by collectors. Unfortunately, habitat loss and over-harvesting are hurting the wild population numbers.

Invertebrate Features

  • Photo: Organ pipe coral

    Coral

    It's reef madness in this colorful gallery of coral formations.

  • Photo: Cluster of orange cup coral

    Photo Gallery: Coral Reefs

    About 80 percent of all life on Earth is found in the oceans, which cover 71 percent of the planet's surface. Take a look at how colorful life under the sea can be.

  • Photo: A lobster and crab on the seafloor

    Lobster

    Learn more about these popular crustaceans that some think of only as a meal. Find out the sizes that these sea creatures are capable of attaining.

  • Photo: Sea cucumber

    Sea Cucumber

    Learn how these amazing echinoderms deter predators by snaring them with sticky threads and even hurling their internal organs about.

Please select a test to run

Animals

From the Magazine

  1. Photo: Two adult preen, Ireland

    Gannets Pictures

    Champion divers but clumsy landers, doting parents but hostile neighbors—northern gannets abound in contradictions.

  2. Photo: Silent Ural owl

    Estonia's Ural Owls

    Photographer Sven Začek provides an intimate view of this large raptor.