Pseudina

Pseudina is a genus of small, air-breathing land snails belonging to the family Pupillidae. These snails are characterized by their minute size, typically possessing a shell that is only a few millimeters in height. The shells are usually ovate or cylindrical in shape and often exhibit ribs or other forms of surface ornamentation.

The genus Pseudina is found in various parts of the world, including regions of Europe and the Americas. These snails are typically found in moist environments, such as under leaf litter, rocks, and logs. They feed on decaying organic matter and algae.

Due to their small size and cryptic habits, Pseudina snails can be difficult to study. Their exact distribution and conservation status are not fully understood for all species within the genus. Further research is needed to better understand the biology and ecology of these tiny land snails. The classification and relationships within the Pupillidae family, including Pseudina, have been subject to revision and may continue to evolve as new data becomes available.