Angariidae

Angariidae is a family of sea snails, specifically marine gastropod mollusks, belonging to the superfamily Angarioidea. These snails are characterized by their relatively small to medium-sized shells, which are often trochiform or turbiniform in shape, meaning they are cone-shaped or top-shaped respectively. The shells typically exhibit prominent spiral ribs and tubercles, giving them a textured and often ornate appearance. Many species also possess a distinct operculum, a calcareous plate that seals the shell opening when the animal is retracted.

Angariidae are found in tropical and subtropical waters worldwide, inhabiting a range of marine environments, from shallow coral reefs to deeper offshore areas. They are generally herbivorous or omnivorous, feeding on algae, detritus, and small invertebrates. Reproduction in Angariidae typically involves external fertilization, with females releasing eggs and males releasing sperm into the water column. The larval stages are planktonic, allowing for dispersal across wider oceanic regions. While not extensively studied for commercial purposes, some species may be collected by shell enthusiasts. The taxonomy of Angariidae has undergone revisions, with some previously recognized genera now placed in other families or considered synonyms.