Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails, but also including some freshwater snails and land snails.
The Aciculidae are a family of minute land snails which have opercula. In other words, Aciculidae are terrestrial operculate gastropods. Even though Aciculidae are land snails, they live in rather wet conditions, among mosses and dead leaves and they have sometimes been described as "winkles come ashore".
Dicharax is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Alycaeidae.
Streptaxidae is a family of carnivorous air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora. Six Streptaxidae subfamilies are accepted in the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi.
Assimineidae is a family of minute snails with an operculum, gastropod mollusks or micromollusks in the superfamily Rissoidae. Many of these very small snails live in intermediate habitats, being amphibious between saltwater and land; others live in freshwater.
Diplommatinidae is a family of small land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea. The Cochlostomatinae Kobelt, 1902, were previously considered a subfamily of the Diplommatinidae, but are now known to be a separate family.
Cyclophoridae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the order Architaenioglossa belonging to the subclass Caenogastropoda.
Maizaniidae is a family of minute land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Pupinidae is a taxonomic family of land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Megalomastomatidae is a family of tropical land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Neocyclotidae is a family of tropical land snails with gills and an operculum, terrestrial gastropod mollusks in the informal group Architaenioglossa belonging to the clade Caenogastropoda.
The family Pomatiidae is a taxonomic family of small operculate land snails, terrestrial gastropod mollusks that can be found over the warmer parts of the Old World. In the older literature, this family is designated as Pomatiasidae.
Cyclophorus is a genus of operculate land snails, terrestrial gastropod mollusks in the family Cyclophoridae.
Architaenioglossa is a taxonomic group of snails which have gills and often an operculum. They are primarily land and freshwater gastropod mollusks within the clade Caenogastropoda.
Plectopylidae is a taxonomic family of large air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Plectopyloidea.
Alycaeidae is a taxonomic family of small to large tropical land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Leptopoma is a genus of land snails with a gill and an operculum, terrestrial gastropod mollusks in the family Cyclophoridae.
Cyclotus is a genus of tropical land snails in the subfamily Cyclophorinae of the family Cyclophoridae.
Euplecta is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Ariophantidae.
Ganesella is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Camaeninae of the family Camaenidae.
