Simon Colmer / Great Pond Snail (Lymnaea stagnalis) on white background, UK
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Simon Colmer / Close-up of eggs in egg case of Great Pond Snail (Lymnaea stagnalis), captive UK
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Simon Colmer / Great Pond Snail (Lymnaea stagnalis) egg case, captive UK
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Simon Colmer / Great Pond Snail (Lymnaea stagnalis) on pond plant, captive UK
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Willem Kolvoort / Great pond snail (Lymnaea stagnalis) at water surface to breathe, garden pond, Holland
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Willem Kolvoort / Great pond snail (Lymnaea stagnalis) and two Great ramshorn snails (Planorbis corneus) under leaf of White water lily (Nymphaea alba) garden pond, Holland
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Willem Kolvoort / Great pond snail (Lymnaea stagnalis) at surface to breathe, sand winning pit, Holland.
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Willem Kolvoort / Stone loach (Nemacheiulus barbatula) and Great pond snail (Lymnaea stagnalis) in brook in Holland
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Willem Kolvoort / Great pond snails (Lymnaea stagnalis) with European edible frog spawn (Rana esculenta) Holland
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Willem Kolvoort / Great Pond Snail (Lymnaea stagnalis) underwater, scraping the algae off stem of White Water Lily (Nymphaea alba} peatbog lake, Holland
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Willem Kolvoort / Great Pond Snail (Lymnaea stagnalis) Holland
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Willem Kolvoort / Great Pond Snail (Lymnaea stagnalis) on Water lily leaf in garden pond, Holland
