Flame Helmet (also known as the Flame Conch or Cameo Shell)

Phylum: Mollusca, Class: Gastropoda, Order: Littorinimorpha, Family: Cassidae, Genus: Cypraecassis, Species: Cypraecassis flammea · Cassidae (Helmet shell family) · Gastropod (univalve, spiral shape, whole shell)

Flame Helmet (also known as the Flame Conch or Cameo Shell)

Species

Cypraecassis flammea

Shell Type

Gastropod (univalve, spiral shape, whole shell)

Family

Cassidae (Helmet shell family)

Size

Approximately 4-5 inches in length, which is average for this species. Adult specimens typically range from 3 to 7 inches.

Color & Pattern

Rich chestnut-brown and creamy white flammulated markings and spiral bands. The surface features striking flame-like streaks radiating across the body whorl. The outer layer shows natural coloration with a smooth, polished appearance on the body and raised tubercles.

Rarity

Uncommon, requiring dedicated searching or diving, as live specimens and pristine shells are seldom found washed ashore intact.

Habitat

Found primarily in shallow sub-tidal waters, inhabiting coral reefs, rocky areas, and sandy bottoms down to depths of about 30 meters.

Geographic Range

Western Atlantic Ocean, including the southeastern United States, Florida, the Bahamas, the Caribbean Sea, and parts of northern South America.

Description

A magnificent and heavy marine snail shell characterized by a robust, rounded body whorl, a distinctive low spire, and prominent rows of blunt knobs or tubercles. The outer lip is thickened and heavily toothed on the inner margin. The large parietal shield and vibrant flame patterns make it a visually striking specimen.

Key Features

Heavy, solid shell with a low spire, distinct rows of rounded knobs along the shoulders, a thick outer lip with prominent denticles, and characteristic flame-like brown and white axial markings.

Collector Value

Highly desirable and sought-after by shell collectors for its robust build and beautiful flame patterns. Specimen value typically ranges from moderate to high depending on size and condition.

Condition Notes

The shell is in Fine to Good condition, largely intact with minimal wear, retaining its natural coloration and sculptural details without significant sun-bleaching or major structural damage.

Interesting Facts

Helmet shells like this one are carnivorous predators that specialize in feeding on sea urchins. They use a specialized acidic secretion to soften the urchin's test before boring through it with their radula.

Ecological Role

Acts as an apex predator of sea urchins, helping to regulate herbivore populations on coral reefs and maintain ecological balance. Empty shells often serve as vital secondary habitats for hermit crabs.

Similar Species

Cypraecassis rufa (Bull-mouth Helmet), which is generally larger and features reddish-orange tones, and Cassis madagascariensis (Emperor Helmet), which lacks the prominent flame pattern of C. flammea.

Beach Finding Tips

Finding a whole specimen on a beach is rare; they are more commonly discovered by divers or snorkelers exploring rocky reef habitats and sandy patches in the Caribbean.

Identified on 8/4/2026
Flame Helmet (also known as the Flame Conch or Cameo Shell) | Sea Shell Identifier