marine snail
Definitions
A gastropod mollusk that lives in a saltwater environment.
Any of various sea-dwelling snails, such as whelks, conchs, or periwinkles, typically possessing a hard external shell.
Examples
The marine snail moved slowly across the tide pool, leaving a shimmering trail on the wet sand.
Many species of marine snail possess a hard, spiral shell that protects them from predators in the ocean.