page_title: Planorboidea
hierarchical_section_title: Planorboidea
caption_attribution_description: English: Photo of Physella acuta, in Mie prefecture, Japan. 日本語: 有肺目サカマキガイ科に分類される淡水産の巻貝のサカマキガイ（逆巻貝）。日本の三重県伊勢市の水槽内で繁殖した個体を本人が撮影。
context_page_description: Planorboidea is a superfamily of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks.
  All of the gastropods in this superfamily are sinistral in shell coiling.
  The monophyly of Planorboidea was confirmed by Albrecht et al.
context_section_description: Planorboidea is a superfamily of air-breathing freshwater snails, aquatic pulmonate gastropod mollusks.
  All of the gastropods in this superfamily are sinistral in shell coiling.
  The monophyly of Planorboidea was confirmed by Albrecht et al. (2007).
caption: Physella acuta, family Physidae
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