Alzoniella is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus Alzoniella are crenobiotic, i.e. they are dependent on springs as a habitat.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0