top of page
< Back

Wavy Turban Snail

(Megastrea undosa)
Population Status in the Wild: Least Concern

The wavy turban snail is a species of marine gastropod found along the rocky shores of the Indo-Pacific region, particularly in coral reefs and tidal pools. This snail is easily recognized by its distinctive, brightly colored shell with wavy, spiral ridges, which can range from shades of brown, yellow, orange, or red. The shell can grow up to 6 inches in diameter, with the characteristic wavy pattern extending along its surface. The body of the snail is relatively small compared to its shell, typically measuring 1-2 inches.

Wavy turban snails are herbivores, primarily feeding on algae and other plant material. They use a specialized, radula (a tooth-like organ) to scrape algae from rocks, contributing to the health of coral reef ecosystems by controlling algal growth. These snails play an important role in maintaining the balance of marine habitats by preventing the overgrowth of algae, which could otherwise suffocate corals and other marine life.

One notable behavior of the wavy turban snail is its ability to cling tightly to rocks or coral surfaces using a large foot, which helps it resist strong waves and tides. It also has a thick, protective operculum (a hard, plate-like structure) that seals the opening of its shell when it retracts, offering protection from predators.

The wavy turban snail is not currently at risk, as it is classified as Least Concern. However, like many marine species, it can face threats from habitat degradation, pollution, and overcollection for the shell trade, especially as its shell is valued in the ornamental market.

Fun Facts:
The wavy turban snail's colorful, patterned shell is often used in jewelry and decorative crafts.

They are excellent climbers and can be found in high areas of coral reefs or rocky outcrops.

Despite their size, these snails are very slow movers, using a muscular foot to crawl across the reef.

ABOUT US >

Welcome to Cabrillo High School Aquarium, a student run program. Here at Cabrillo High School, we encourage growth and development within our students. As such our directory as well as our program are constantly evolving and changing, similar to the natural world.

​​

Students that made this possible

​

This site was last updated: 04/29/2025

​

CONTACT >

T: (805) 742-2888

E: eisen.greg@lusd.org

bottom of page