Pink Toothshell, also known as the Red Tusk Shell
Phylum: Mollusca, Class: Scaphopoda, Order: Dentaliida, Family: Dentaliidae, Genus: Dentalium, Species: Dentalium rubescens · Dentaliidae (Tooth shell and tusk shell family) · Scaphopod (tusk shell), whole shell, tubular and slightly curved shape
Species
Dentalium rubescens
Shell Type
Scaphopod (tusk shell), whole shell, tubular and slightly curved shape
Family
Dentaliidae (Tooth shell and tusk shell family)
Size
Approximately 1 to 1.5 inches in length, which is average for this species. Adults typically range from 0.75 to 2 inches.
Color & Pattern
Vibrant reddish-pink to deep rose base color with faint longitudinal striations running along the length of the tubular shell. The coloration appears completely natural, rich, and unfaded.
Rarity
Uncommon, as whole, brightly colored specimens require careful searching in fine sand driftlines.
Habitat
Found in marine environments, typically inhabiting soft sand or muddy substrates in shallow to moderately deep subtidal waters.
Geographic Range
Indo-Pacific region, including waters off Southeast Asia, Australia, and the tropical Indian Ocean.
Description
A striking and delicate marine shell characterized by its slender, tapering tubular form that resembles an elephant's tusk. The exterior features subtle longitudinal ridges and a polished, glossy surface adorned with a brilliant pink-to-red hue. Both ends are open, with the wider anterior serving as the opening for the living animal's head and foot.
Key Features
Slender, gently curved tubular shape, open at both ends, smooth to finely ribbed surface texture, and a distinct deep pink or red coloration.
Collector Value
Moderately desirable for specialized marine mollusk and scaphopod collectors. Specimens with intact tips and rich coloration are valued, though most individual pieces sell for a low to moderate price range.
Condition Notes
Good to Fine condition. The shell is intact with minimal wear on the apical tip, retaining its vibrant original coloration and smooth aperture edges.
Interesting Facts
Scaphopods are often called tusk shells because of their curved, tubular shape. In ancient times, various indigenous cultures and native peoples used tooth shells as currency, jewelry, and for intricate beadwork.
Ecological Role
Scaphopods live buried vertically in sediment with only the narrow posterior tip exposed to draw in water. They feed primarily on microscopic foraminifera and organic detritus using specialized tentacular structures called captacula.
Similar Species
Dentalium entalis (Common European tusk shell), which is typically white or cream-colored rather than pink, and Dentalium elephantinum, which possesses stronger, more pronounced longitudinal ribs.
Beach Finding Tips
Look in fine shell driftlines and shell hash on tropical sandy beaches, especially after storms or during extremely low tides when subtidal sediments are washed ashore.