Littorinoidea
| Littorinoidea | |
|---|---|
| Apertural view of a shell and an operculum of the land snail Tudorella sulcata in the family Pomatiidae | |
| The land snail Tropidophora fimbriata | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Littorinoidea Children, 1834 |
| Families | |
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See text | |
Littorinoidea are a superfamily of both sea snails and land snails which have a gill and an operculum, terrestrial and marine gastropod mollusks in the clade Littorinimorpha.
The terrestrial family within this group, the Pomatiidae, are sometimes called "land winkles" because the group originated in the sea and the closely related family Littorinidae are known as "winkles".