Flame Auger, also known as the Flame Tessellation Auger
Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Terebridae, Genus: Hastula, Species: Hastula flammea · Terebridae (Auger family) · Gastropod (snail/univalve), whole shell, slender pointed spiral shape
Species
Hastula flammea
Shell Type
Gastropod (snail/univalve), whole shell, slender pointed spiral shape
Family
Terebridae (Auger family)
Size
Approximately 1 to 1.5 inches in length, which is average for this species. Adults typically range from 1 to 2 inches.
Color & Pattern
Striking coloration featuring rich dark brown to nearly black bands contrasting with warm amber, tan, and cream flames or streaks running longitudinally. The upper spire tends to be lighter, cream or tan, while the lower body whorl darkens significantly. Colors appear natural and glossy.
Rarity
Common in its native range, but individual finds depend heavily on local beach conditions and targeted sand sifting.
Habitat
Found in shallow subtidal and intertidal zones, typically buried in clean, fine sand flats, sandbars, and shallow sand pockets near coral reefs.
Geographic Range
Indo-Pacific region, including East Africa, Madagascar, the Red Sea, and Southeast Asia to northern Australia and Polynesia.
Description
A graceful, elongated auger shell with a high, pointed spire composed of numerous tightly wound whorls. The surface features fine longitudinal growth striae crossed by subtle spiral lines, creating a finely textured grid pattern. The body tapers neatly to a short anterior canal, exhibiting a polished finish with dramatic flamed markings.
Key Features
Slender, turreted spire; distinctive flame-like or mottled longitudinal dark brown and amber patterning; relatively smooth surface with subtle axial sculpturing; narrow aperture.
Collector Value
Moderately low to moderate value. While widely available in shell shops and common within its range, nicely patterned specimens like this are staples in general conchology collections, typically valued at a few dollars.
Condition Notes
Good to Fine condition. The spire apex is slightly worn but intact, and the rich color pattern is well-preserved without major fading or chipping.
Interesting Facts
Auger snails are carnivorous predators that hunt marine worms using a specialized venom gland and a radula modified into tiny harpoon-like teeth. They use their slender shape to rapidly burrow beneath the sand when disturbed.
Ecological Role
Plays an important role as a sand-dwelling predator keeping polychaete worm populations in balance. They serve as prey for larger fish and predatory gastropods.
Similar Species
Hastula strigata and Hastula cinerea. Hastula flammea is distinguished by its warmer amber tones and more distinct flamed or banded contrasting patterns rather than uniform gray or fine linear streaks.
Beach Finding Tips
Look along tropical sand beaches at low tide, particularly after storms or heavy wave action. Sifting through the upper layers of sand in shallow lagoons or sandbars often yields the best results.