Mole Cowrie (Also known as Talparia talpa)
Phylum: Mollusca, Class: Gastropoda, Order: Littorinimorpha, Family: Cypraeidae, Genus: Talparia, Species: Talparia talpa · Cypraeidae (Cowrie family) · Gastropod univalve with an oval-cylindrical shell shape
Species
Talparia talpa
Shell Type
Gastropod univalve with an oval-cylindrical shell shape
Family
Cypraeidae (Cowrie family)
Size
Approximately 2 to 3 inches in length, which is average for an adult specimen of this species. The maximum size can reach up to 4 inches.
Color & Pattern
The base color is typically a rich golden-brown or yellowish-tan, crossed by three darker brown transverse bands. The margins and base are dark brown to blackish. The dorsum of this particular specimen shows weathering and sun-bleaching, muting the classic rich tones into a more greyish-brown hue.
Rarity
Common to Uncommon, though finding a fresh, high-grade specimen while beachcombing in locations like Hawaii requires some searching due to wave action tumbling.
Habitat
Found in shallow to moderately deep subtidal waters, typically inhabiting coral reefs, under coral slabs, and in crevices during the day.
Geographic Range
Indo-Pacific region, extending from East Africa and the Red Sea across the Indian Ocean to Polynesia and Hawaii.
Description
An oblong, cylindrical cowrie shell with a smooth, highly polished exterior when fresh. It features a narrow aperture running the length of the base, lined with numerous fine teeth on both the outer and inner lips. The margins are slightly thickened, and the ends are moderately produced.
Key Features
Elongated cylindrical shape, distinctive three dark bands across a golden-brown dorsum, dark brown base and margins, and finely toothed narrow aperture.
Collector Value
Low to Moderate. While it is a popular and striking species for beginning and intermediate collectors, worn beach specimens hold minimal commercial value compared to pristine gem-grade variants.
Condition Notes
The shell appears weathered and sun-bleached with a dulled exterior finish and some surface erosion, typical of a dead-collected beach shell. Collectibility grade is Fair to Good.
Interesting Facts
Like all cowries, the living animal possesses a mantle that covers the shell, protecting it from fouling organisms and depositing the glossy outer layer of enamel.
Ecological Role
Acts as a nocturnal grazer feeding on sponges, algae, and detritus on the reef, helping to maintain benthic community balance.
Similar Species
Talparia argus (Argus Cowrie), which features distinctive eye-spots on the dorsum rather than plain transverse bands.
Beach Finding Tips
Look along reef-adjacent beaches, in shell drift lines, and sift through coral rubble after heavy storms or rough surf conditions.
Notes
Found on Goat Island near Laie