Roostertail Conch (also known as the Rooster Conch or Roostertail Strombus)
Phylum: Mollusca Class: Gastropoda Order: Littorinimorpha Family: Strombidae Genus: Lobatus Species: Lobatus gallus · Strombidae (Conch family) · Gastropod (univalve snail), complete adult shell with expanded outer lip. Shape is overall conical to spindle-shaped with a long, thin, rearward-prolonged posterior expansion on the outer lip.
Species
Lobatus gallus (formerly Strombus gallus)
Shell Type
Gastropod (univalve snail), complete adult shell with expanded outer lip. Shape is overall conical to spindle-shaped with a long, thin, rearward-prolonged posterior expansion on the outer lip.
Family
Strombidae (Conch family)
Size
Estimated at approximately 4.5 to 5.5 inches (11 to 14 cm) in length. Adults typically range between 3.5 to 7 inches (9 to 18 cm).
Color & Pattern
Exterior features a rich mottled pattern of reddish-orange, tan, and dark brown zigzag lines over a cream base. The broad interior aperture glaze is glossy porcelain-white to soft yellowish-cream, while the outer margin of the flaring lip displays warm orange-brown banding.
Rarity
Uncommon to Rare. Unlike the abundant Queen Conch or Milk Conch, the Roostertail Conch is infrequently washed ashore and is considered a prized find by beachcombers and divers.
Habitat
Found in shallow subtidal to moderately deep water (typically 2 to 30 meters depth), preferring sandy bottoms, coral rubble, and turtle grass (Thalassia) beds near offshore coral reefs.
Geographic Range
Tropical Western Atlantic, including Southeast Florida, the Florida Keys, Bermuda, the Bahamas, throughout the Caribbean Sea, and south to eastern Brazil.
Description
A striking and highly sought-after true conch shell distinguished by its unique long, narrow extension of the outer lip that reaches high up past the spire, resembling a rooster's tail. The shell features strong knobby spines on the shoulder whorls, a tall spire, a narrow aperture lined with thick white enamel, and a pronounced stromboid notch near the anterior canal.
Key Features
1. Posterior lip extension that extends upward beyond the spire tip in a rooster-comb fashion. 2. Strong tubercules/knobs along the shoulder of the main whorl. 3. Deep stromboid notch near the base of the outer lip. 4. Glossy, smooth aperture shield contrasted with a heavily patterned, ridged exterior dorsal surface.
Collector Value
Highly desirable among conch collectors due to its elegant morphology and relative scarcity compared to other Caribbean Strombids. Value for clean, undamaged specimens typically ranges from $20 to $60 depending on size, lip integrity, and color richness.
Condition Notes
Fair to Good collector condition. The specimen retains excellent gloss on the parietal wall and strong original color patterns on the body whorl. However, the lip edges show some chipping/erosion, and there is collector writing ('HTOEDEL') in black ink near the lower aperture margin.
Interesting Facts
The extended wing of the outer lip in mature adults gives this species its common name due to its resemblance to a rooster's tail feathers. Like other true conchs, it possesses well-developed eyes on long stalks and uses its claw-like operculum to propel itself along the seafloor in a hopping motion rather than gliding.
Ecological Role
Herbivorous grazer feeding on benthic microalgae, detritus, and seagrass epibionts. Serves as prey for large marine predators like sea turtles, octopus, horse conchs, and rays. Not explicitly endangered like the Queen Conch, but vulnerable to habitat degradation.
Similar Species
Milk Conch (Lobatus costatus) - lacks the extreme long upper lip extension and is heavier/whiter; Hawk-wing Conch (Lobatus raninus) - has a shorter lip wing, dark brown aperture markings, and distinct bi-lobed spire nodules.
Beach Finding Tips
Rarely found intact on public beaches as it lives primarily offshore; search shallow reef flats, sandy pockets near patch reefs, or beach rubble lines after major storms in places like the Florida Keys or Bahamas.