Cystiscidae

Cystiscidae is a taxonomic family of small sea snails, marine gastropod mollusks or micromollusks.

Gibberula is a genus of minute sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae, previously placed in the family Marginellidae, the margin shells or marginellids.

species of mollusc

Persicula is a taxonomic genus of minute to small predatory sea snails, marine gastropod mollusks. It includes several species which are micromollusks.