Gut of Daphnia magna with Ordospora colligata

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Description: English: Anterior half of the gut of Daphnia magna with an infection by the microsporidium Ordospora colligata. The parasite is best seen as light clusters in the two blind-sacks in the upper left corner of the picture. Date: 20 March 2006. Source: Own work. Author: Dieter Ebert, Basel, Switzerland.