Invertebrate
Lettered Olive
Oliva sayanaAlso known as Lettered Olive Shell
Lettered olives produce glossy, cylindrical shells adorned with intricate reddish-brown lines resembling ancient calligraphy. These predatory snails burrow just beneath the surface of wet sandy beaches, gliding smoothly in search of buried bivalves and small crustaceans. At low tide, their movements leave distinctive raised trails in the sand that guide observant beachcombers directly to them.
MarinePredatoryMollusk
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & preyCoquina clams, Small bivalves, Amphipods
Predators
- Crabs
- Sea stars
- Shorebirds
ThreatsBeach nourishment projects, coastal development, shell collecting
HabitatsShallow marine waters, sandy beaches, intertidal flats
Life span5–10 years
Classification
- OrderNeogastropoda
- FamilyOlividae
- GenusOliva
- SpeciesOliva sayana
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance.
Responsible observation
- Look for Tracks: Search wet sand at low tide for telltale smooth V-shaped ridges marking buried snails.
- Observe Live Shells: Place live snails back into wet sand so they can rebury and avoid drying out.
- Distinguish Shells: Empty shells lack the fleshy mantle and muscular foot visible in living specimens.
Image unavailablePrey Frequent Companion Close Relative
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