Iglica (gastropod)

Iglica is a genus of very small freshwater snails, aquatic gastropod mollusks in the family Truncatellidae.

These minute snails are characterized by their elongated, slender shells, often described as needle-like or awl-shaped (hence the name Iglica which translates to "needle" or "awl" in some languages). They typically inhabit subterranean or spring-fed freshwater habitats, such as caves, springs, and small streams. Due to their small size and cryptic habitats, they are often overlooked and may be locally endemic, meaning they are restricted to a specific geographical area. This restricted distribution can make them vulnerable to habitat degradation and extinction.

The shells of Iglica species are usually smooth and translucent or whitish in color. The operculum, a structure used to close the shell aperture, is present. As with many Truncatellidae, the shell has a truncated appearance, particularly in mature specimens.

Research on Iglica is ongoing, with new species continually being discovered as scientists explore previously unstudied subterranean habitats. Due to their small size and specialized habitats, accurately identifying and classifying these snails requires careful anatomical examination, often involving microscopy and molecular techniques. They play a role in the local ecosystem, primarily as detritivores or grazers, feeding on organic matter and algae in their aquatic environment.