Potamopyrgus

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41	PDF Document Add to Reading List Source URL: mollusca.sav.sk Language: English - Date: 2010-07-06 16:17:06 Hydrobiidae Potamopyrgus New Zealand mud snail
42	PDF Document Add to Reading List Source URL: www.borenv.net Language: English - Date: 2010-06-22 09:00:18 Baltic Sea Theodoxus fluviatilis New Zealand mud snail Potamopyrgus Archipelago Sea Theodoxus Åland Islands Lake Water Hydrobiidae Neritidae Geography of Europe