Cylindroperidinidae

Cylindroperidinidae is a family of marine gastropod mollusks within the superfamily Rissooidea. These are typically small to minute snails, often found in marine environments. Their shells are generally cylindrical or turreted, hence the family name "Cylindroperidinidae." The aperture is often ovate and may have a short siphonal canal.

Members of this family inhabit a variety of marine habitats, including sandy bottoms, muddy substrates, and rocky shores. They are often found in shallow to moderate depths. The diet of Cylindroperidinidae species is not extensively documented but likely consists of algae or detritus, consistent with other small gastropods in similar ecological niches.

The taxonomy of Cylindroperidinidae has undergone revisions, and classification within Rissooidea can be complex due to the small size and subtle morphological differences among species. Research into their genetics and detailed morphology continues to refine our understanding of their evolutionary relationships. They are considered part of the benthic fauna in many marine ecosystems.