Tiger Cowrie (Cypraea tigris)
Phylum: Mollusca, Class: Gastropoda, Order: Littorinimorpha, Family: Cypraeidae, Genus: Cypraea, Species: Cypraea tigris · Cypraeidae (Cowrie family) · Gastropod, whole shell, oval/pyriform shape with a long, narrow, toothed aperture
Species
Cypraea tigris
Shell Type
Gastropod, whole shell, oval/pyriform shape with a long, narrow, toothed aperture
Family
Cypraeidae (Cowrie family)
Size
Approximately 4-5 inches, which is within the normal adult size range of 3 to 6 inches for this species.
Color & Pattern
Displays the classic tiger-like pattern with dark brown to black spots and blotches over a creamy white to light tan dorsum. The margins feature dark spotting, and the base is a clean white with prominent, fine teeth lining both sides of the elongated aperture.
Rarity
Common, frequently found by divers and occasionally washed up on Indo-Pacific beaches, though high-grade specimens remain sought after.
Habitat
Found in shallow tropical waters, typically inhabiting coral reefs, reef flats, and lagoon areas under coral heads and in crevices, down to depths of about 30 meters.
Geographic Range
Indo-Pacific region, spanning from the eastern coast of Africa through the Indian Ocean and across the Pacific to Polynesia and Hawaii.
Description
A magnificent and heavy cowrie with a smooth, highly polished porcelain-like finish. The dorsum is arched, curving down smoothly to thick, rounded margins. The aperture is long, narrow, and flanked by distinct, prominent white teeth on both the outer and inner lips.
Key Features
Distinguished by its heavy, inflated oval shape, smooth glossy finish, and characteristic dark brown spots mimicking a tiger's pelt over a light background, paired with a strongly toothed aperture.
Collector Value
Moderately valued by collectors. While common, large, well-patterned specimens with pristine gloss are staples in most shell collections and readily available in shell shops.
Condition Notes
The specimen appears to be in very good condition with strong natural gloss, intact margins, and well-defined teeth along the aperture, grading as a Fine to Gem collector specimen.
Interesting Facts
Like all cowries, the living animal covers its glossy shell with fleshy, patterned mantle lobes equipped with sensory tentacles, which protect the shell from fouling organisms and continually secrete new shell layers to maintain its high polish.
Ecological Role
Functions primarily as a nocturnal herbivore, grazing on algae growing on coral reefs, helping to maintain reef health by preventing algal overgrowth.
Similar Species
Panther Cowrie (Cypraea pantherina), which has smaller, more numerous spots and a slightly more cylindrical shape compared to the broader Tiger Cowrie.
Beach Finding Tips
Dead shells are occasionally found in drift lines or shallow reef margins in the Indo-Pacific, though the best specimens are typically found living under coral slabs by snorkelers and divers.