Alphabet Cone, also known as the Lettered Cone
Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Conidae, Genus: Conus, Species: Conus spurius · Conidae (Cone Snail family) · Gastropod univalve, whole shell with a distinct biconical or cone shape
Species
Conus alphonsi or Conus spurius (specifically the Atlantic Alphabet Cone / Conus spurius atlanticus)
Shell Type
Gastropod univalve, whole shell with a distinct biconical or cone shape
Family
Conidae (Cone Snail family)
Size
Approximately 2 to 2.5 inches in length, which is a medium-to-large size for this species. Adults typically range from 1.5 to 3 inches.
Color & Pattern
Creamy white base color adorned with distinct rows of yellowish-brown to dark brown rectangular spots, blotches, and tent-like markings arranged in spiral bands that resemble letters or characters. The patterns are natural and sharp.
Rarity
Common to Uncommon, frequently found by dedicated snorkelers and beachcombers in the Caribbean and Florida regions.
Habitat
Found in shallow subtidal waters, typically on sandy substrates, sand bars, and in seagrass beds from the intertidal zone down to about 30 meters depth.
Geographic Range
Western Atlantic Ocean, including the Gulf of Mexico, Caribbean Sea, and south along the coast of Florida and Brazil.
Description
A classic solid cone shell with a low, flat-topped spire and a smooth, polished exterior. The body whorl tapers neatly toward the anterior end. The pattern of square and rectangular brown markings on a pale background gives it its unique letter-like appearance.
Key Features
Low, flat spire with slightly rounded whorls; smooth porcelain-like texture; characteristic spiral rows of square brown spots and blotches resembling letters; narrow, straight aperture.
Collector Value
Moderately sought after by shell collectors due to its clear, striking pattern. Specimens in pristine condition with bright markings are prized, though common enough to be affordable, typically valued between $5 and $15.
Condition Notes
Good to Fine condition, displaying clear natural coloration with minimal wear on the apex and intact outer lip. Collectibility grade is Fine.
Interesting Facts
Cone snails are predatory marine gastropods equipped with a modified radular tooth that acts like a harpoon to inject potent venom into their prey, primarily marine worms or small fish.
Ecological Role
Acts as a carnivorous predator in benthic marine ecosystems, helping control populations of polychaete worms and small fish. Live cone snails should be handled with extreme care due to venomous harpoons.
Similar Species
Conus mus (Mouse Cone) and Conus daucus (Carrot Cone), which have different coloration, smaller sizes, and distinct sculptural details or spires.
Beach Finding Tips
Look along sandy beaches and shallow sandbars following severe storms or rough surf. Snorkeling in shallow, clear sandy areas during low tide yields the best live or empty specimens.