page_title: Lymnaea stagnalis
section_title: Life cycle
hierarchical_section_title: Lymnaea stagnalis / Life cycle
caption_attribution_description: Potamogeton natans leaf underside with spawn of Lymnaea stagnalis.
context_page_description: Lymnaea stagnalis, better known as the great pond snail, is a species of large air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae.
  Limnaea stagnalis var. baltica Lindström, 1868: synonym of Lymnaea stagnalis
context_section_description: Lymnaea stagnalis is a simultaneously hermaphroditic species and can mate in the male and female role, but within one copulation only one sexual role is performed at a time. Lymnaea stagnalis perform more inseminations in larger groups and prefer to inseminate novel over familiar partners. Such higher motivation to copulate when a new partner is encountered is known as the Coolidge effect and has been demonstrated in hermaphrodites firstly in 2007.
caption: Eggs of Lymnaea stagnalis
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