Littorinoidea
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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 order 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".
Taxonomy
These families and subfamilies have been recognized in the taxonomy of Bouchet & Rocroi (2005):
- Littorinidae Children, 1834 - the periwinkles Subfamily Littorininae Children, 1834 Subfamily Lacuninae Gray, 1857 Subfamily Laevilitorininae Reid, 1989
- † Bohaispiridae Youluo, 1978
- Pickworthiidae Iredale, 1917 Subfamily Pickworthiinae Iredale, 1917 (synonym: Reynellonidae Iredale, 1917) Subfamily Pelycidiinae Ponder & Hall, 1983 Subfamily Sherborniinae Iredale, 1917
- Pomatiidae Newton, 1891 (1828) Subfamily Pomatiinae Newton, 1891
- Annulariidae Henderson & Bartsch, 1920 Subfamily Annulariinae Henderson & Bartsch, 1920 Subfamily Rhytidopomatinae Henderson & Bartsch, 1920 Subfamily Tudorinae Watters, 2006
- † Purpurinidae Zittel, 1895
- Skeneopsidae Iredale, 1915
- † Tripartellidae Gründel, 2001
- Zerotulidae Warén & Hain, 1996
(Extinct taxa are indicated by a dagger, †.)
Families brought into synonymy
- Bembiciidae: synonym of Lacuninae
- Cyclostomatidae: synonym of Pomatiidae
- Ericiidae: synonym of Pomatiidae
- Faxiidae: synonym of Sherborniinae
- Lacunidae: synonym of Littorinidae
- Melarhaphidae: synonym of Littorininae
- Reynellonidae: synonym of Pickworthiinae
- Risellidae: synonym of Lacuninae