Truncatelloidea

Truncatelloidea is a superfamily of snails, gastropod mollusks in the clade Caenogastropoda.

Elachisinidae is a family of sea snails, marine gastropod molluscs in the superfamily Truncatelloidea and the order Littorinimorpha.

Tornidae is a family of very small and minute sea snails with an operculum, marine gastropod mollusks in the clade Littorinimorpha. This family used to be known as the Vitrinellidae. Iredale has shown that the family Adeorbidae Monterosato, 1884 should be called Tornidae

Tateidae is a family of very small and minute aquatic snails with an operculum, gastropod molluscs in the superfamily Truncatelloidea.

species of mollusc

species of mollusc

species of mollusc

Tomichia is a genus of very small freshwater snails which have a gill and an operculum, gastropod molluscs or micromolluscs in the family Tomichiidae.

Clenchiellidae is a family of sea snails, marine gastropod molluscs in the superfamily Truncatelloidea.

Falsicingulidae is a family of very small sea snails, marine gastropod molluscs in the clade Littorinimorpha.

Hydrococcidae is a family of small sea snails, marine gastropod molluscs in the clade Littorinimorpha.

Epigrus is a genus of gastropods belonging to the family Epigridae.