Atlantic Deer Cowrie, Measled Cowrie (alternate names include Cervone)
Phylum: Mollusca, Class: Gastropoda, Order: Littorinimorpha, Family: Cypraeidae, Genus: Macrocypraea, Species: Macrocypraea zebra · Cypraeidae (Cowrie family) · Gastropod (snail/univalve), whole shell, ovate shape
Species
Macrocypraea zebra
Shell Type
Gastropod (snail/univalve), whole shell, ovate shape
Family
Cypraeidae (Cowrie family)
Size
Approximately 1 to 2 inches based on visual context, though mature adults typically range between 3 to 5 inches.
Color & Pattern
Base color is a warm brownish-tan to greyish-brown overlaid with three distinct lighter transverse bands. Faint spots are visible on the dorsal surface. The glossiness suggests natural polish.
Rarity
Common to Uncommon, depending on the specific locality and depth of searching.
Habitat
Shallow subtidal waters, typically found hiding under coral rubble, rocks, or inside crevices in coral reefs and rocky areas.
Geographic Range
Western Atlantic, including the southeastern United States, Florida Keys, Caribbean Sea, and parts of the Gulf of Mexico.
Description
An ovate, smooth, and highly polished shell with rounded margins and a narrow, toothed aperture running the length of the base. The dorsal surface exhibits characteristic banding and faint spotting patterns.
Key Features
Smooth, glossy ovate dorsal surface with characteristic transverse light bands and narrow, long aperture with teeth on both lips.
Collector Value
Moderately sought after by beginner and intermediate collectors; valued more for larger, pristine specimens with vibrant patterns. Typically inexpensive in shell shops.
Condition Notes
Appears to be in good to fine condition with intact form and retained pattern, though slightly smaller or partially obscured in the image.
Interesting Facts
Cowries were historically used as a form of currency in various parts of the world. The living animal possesses a mantle that covers the shell, keeping it polished and shiny.
Ecological Role
Acts as an algae scraper and grazer on coral reefs, helping to control algal growth. Serves as prey for various marine carnivores.
Similar Species
Atlantic Measled Cowrie (Macrocypraea zebra) can be confused with Macrocypraea cervus (Atlantic Deer Cowrie), but differs in size, spot clarity, and marginal markings.
Beach Finding Tips
Best found by snorkeling or diving around coral reefs and rocky ledges, or occasionally washed ashore after severe storms during low tide.