Dussumeriidae

Dussumeriidae is a taxonomic family of freshwater snails, belonging to the order Architaenioglossa. These operculate gastropods are characterized by their gill and lung, allowing them to inhabit both aquatic and terrestrial environments, though they are primarily found in freshwater habitats. The family is not widely recognized in all current classifications, with some sources considering it synonymous with or a subfamily of Viviparidae.

Members of the Dussumeriidae typically possess a globose or turbiniform shell with a moderately high spire. The shell is often smooth or exhibits fine striations. They are characterized by an operculum, a calcareous or horny plate that seals the aperture when the snail retracts into its shell. Their reproductive strategy generally involves ovoviviparity, where eggs hatch within the female's body, and live young are released. These snails are omnivorous, feeding on algae, detritus, and other organic matter. The geographic distribution of Dussumeriidae is primarily in Southeast Asia and parts of Africa. Due to taxonomic revisions and differing opinions on family-level distinctions, the exact species composition and status of Dussumeriidae can vary depending on the classification system used.