Marginellidae
The Marginellidae are a family of small, predatory sea snails, marine gastropod mollusks in the superfamily Marginelloidea. These snails are typically found in tropical and subtropical waters worldwide, often inhabiting sandy bottoms and coral reefs.
Common Names
Members of the Marginellidae are commonly known as "marginellas" or "margin shells." Some species are also called "miters" or "mitre shells." The name "marginella" refers to the distinctive marginal lip that often characterizes these shells.
Characteristics
Marginellas are characterized by their small, smooth, and glossy shells, often with intricate patterns and colors. The shells typically have a rounded shape, with a spire that is short and pointed. The aperture, or opening of the shell, is narrow and elongated, and the outer lip is often thickened and flared. Marginellas have a foot that is large and well-developed, allowing them to crawl along the seabed. They also possess a siphon, a tube-like structure that they use to draw in water and filter out food particles.
Diet
Marginellas are carnivorous, feeding on other small marine invertebrates, such as polychaete worms, crustaceans, and other gastropods. They use their radula, a tongue-like structure with rows of teeth, to scrape and tear their prey. The radula of marginellas is highly specialized and adapted for their predatory lifestyle.
Habitat
Marginellas are typically found in shallow water habitats, often in sandy bottoms, coral reefs, and rocky shores. They are particularly common in tropical and subtropical regions, but some species can be found in temperate waters.