Brown Turban Snail
Phylum: Mollusca, Class: Gastropoda, Order: Trochida, Family: Trochidae, Genus: Tegula, Species: Tegula brunnea · Trochidae (Top snail family) · Gastropod, whole shell, spiral shape
Species
Tegula brunnea
Shell Type
Gastropod, whole shell, spiral shape
Family
Trochidae (Top snail family)
Size
Approximately 1 inch in diameter, which is average for this species. Adults typically range from 0.75 to 1.25 inches.
Color & Pattern
Mottled brown and olive-green base with subtle flammules or streaks, often exhibiting a slightly polished or pearly luster when wet. The colors appear mostly natural, showing minor sun-bleaching at the apex.
Rarity
Common
Habitat
Found in shallow subtidal and intertidal zones, typically on rocky shores, kelp forests, and rocky substrates where they graze on algae.
Geographic Range
Northeastern Pacific Ocean, ranging from British Columbia, Canada, down to central Baja California, Mexico.
Description
A compact, sturdy top-shaped gastropod shell featuring a low-spired profile, rounded whorls, and a smooth to finely textured exterior. The base of the shell features a modest umbilicus and an oblique aperture designed to fit snugly against rocks in heavy surf environments.
Key Features
Low conical to turbinate shape, solid construction, mottled brown/green coloration, lack of prominent nodes or heavy spines, and a pearly interior nacre.
Collector Value
Low to moderate value. While widely available and not a high-end collector prize, it is a staple educational and representative species for temperate Pacific marine collections, typically worth a few dollars.
Condition Notes
Good condition. The shell is structurally intact with some natural weathering on the apex. Surface luster is preserved well, making it a solid collectible grade specimen.
Interesting Facts
Brown turban snails are herbivorous grazers that play an important role in controlling microalgae populations in kelp forest ecosystems. They use a radula to scrape algae off rocks.
Ecological Role
Acts as an essential primary consumer and algae grazer in rocky intertidal and kelp forest food webs, serving as prey for crabs, sea stars, and marine fish.
Similar Species
Black Turban Snail (Tegula funebralis), which is typically darker blackish-purple and lacks the distinct brownish mottled patterns of Tegula brunnea.
Beach Finding Tips
Look along rocky intertidal shores of the Pacific Northwest and California during extreme low tides, particularly around tide pools and kelp holdfasts washed ashore.