analysoidulla
Analysoidulla is a genus of small, freshwater snails with a smooth shell, belonging to the family Hydrobiidae. The genus was first described by the German malacologist Karl Heinrich Rosenbusch in 1932. Analysoidulla species are characterized by their minute size, typically measuring less than 2 millimeters in length, and their lack of a distinct operculum, which is the shell that covers the aperture of the shell in most gastropods. The shell is typically conical to ovate in shape, with a smooth surface and a narrow aperture.
The genus is found in Europe, with species occurring in various freshwater habitats such as ponds, lakes,
The genus Analysoidulla currently includes two recognized species: Analysoidulla analis and Analysoidulla balthica. Both species are