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 cone or biconical shape

Alphabet Cone (also known as the Lettered Cone)

Species

Conus spurius

Shell Type

Gastropod univalve, whole shell with a distinct cone or biconical shape

Family

Conidae (Cone snail family)

Size

Approximately 2 to 2.5 inches in length. This is a medium-sized specimen, while adults of the species typically range from 1.5 to 3.5 inches, with exceptionally large specimens reaching up to 4 inches.

Color & Pattern

Cream to off-white base color adorned with distinct yellowish-brown to dark brown tent-like markings, dashes, and interrupted spiral bands resembling letters or hieroglyphics. The pattern is natural, showing slight signs of sun bleaching on the spire. The surface is smooth and glossy in pristine areas.

Rarity

Common, frequently found by snorkelers, scuba divers, and occasionally beachcombers after heavy storms in its native range.

Habitat

Found primarily in shallow subtidal waters down to about 30 meters. It prefers sandy bottoms, sand flats, and areas near coral reefs or seagrass beds where it can bury itself during the day. It is a marine species.

Geographic Range

Western Atlantic Ocean, including the Gulf of Mexico, Caribbean Sea, southern Florida, Bermuda, and down along the coast of South America.

Description

An elegant, solid, and heavy cone shell featuring a low, flat-topped spire and a distinctively tapered body whorl. The surface is smooth to the touch with fine growth lines. The intricate tent-like and letter-like markings wrap around the body whorl in interrupted spiral bands, giving it a unique typographic appearance.

Key Features

Low, flat spire with slightly rounded shoulder knobs; smooth, glossy heavy shell; characteristic yellowish-brown tent or letter-like markings arranged in three or four spiral bands against a pale cream background.

Collector Value

Moderately sought after by shell collectors for its beautiful geometric patterns. Because they are common, standard specimens are affordable, typically ranging from a few dollars to fifteen dollars depending on size, color saturation, and locality data.

Condition Notes

Good condition. The shell is structurally intact with minor wear on the spire tip and slight surface fading indicative of a beach find or an older specimen. The aperture and outer lip are mostly preserved. Collectibility grade: Good to Fine.

Interesting Facts

Live cone snails are venomous predators that use a modified, harpoon-like radular tooth charged with neurotoxins to immobilize prey, primarily marine worms or small fish. Collectors should always exercise caution with live specimens, though empty shells found on beaches pose no danger.

Ecological Role

As nocturnal carnivores, cone snails help regulate prey populations of marine worms and small fish on sandy substrates. They are an integral part of the benthic marine food web. Conservation status is generally secure, though local populations can be affected by over-collection and habitat degradation.

Similar Species

Conus alphonsi or Conus textile (Textile Cone), but C. spurius is easily distinguished by its heavier build, lower spire, and more blocky, tent-like brownish markings rather than the fine, intricate lace patterns found on textile cones.

Beach Finding Tips

Look for empty specimens washed up on sandy beaches of southwest Florida and the Caribbean following strong onshore winds or tropical storms. Low tide exposing sandbars is the ideal time for beachcombing.

Identified on 9/24/2026
Alphabet Cone (also known as the Lettered Cone) | Sea Shell Identifier