Turbidiidi

Turbidiidi is a term that refers to a group of marine worms belonging to the family Turbinidae. These creatures are characterized by their spirally coiled shells, which are typically robust and often possess a rough or spiny exterior. The shell's aperture, or opening, can vary in shape and size among different species. Turbinidiids are gastropod mollusks, meaning they are a type of mollusk that moves by means of a muscular foot.

These marine snails are found in a variety of oceanic environments, ranging from shallow, tropical waters to deeper, cooler seas. They are often associated with rocky substrates, coral reefs, and kelp forests, where they can find food and shelter. Their diet generally consists of algae, which they scrape from surfaces using a radula, a ribbon-like tongue covered in tiny teeth.

Reproduction in turbinidiids typically involves external fertilization, with males and females releasing their gametes into the water column. The resulting larvae are planktonic, drifting in the ocean currents before settling to the seabed and metamorphosing into juvenile snails. The diversity within the Turbinidae family is considerable, with numerous genera and species described, each adapted to its specific ecological niche. Some well-known examples include the turban snails and the top shells. Their shells have sometimes been used historically by humans for ornamental purposes or as a source of nacre, also known as mother-of-pearl.