Dugesia, a flatworm, and a member of the Platyhelmenthes. This specimen has besen stained to show the gastrovascular cavity. The head is on the left, and you can see the two eyespots.

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A vinegar eel, which is really a roundworm.

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An earthworm or the genus Lumbricus.

Two leeches, which are also Annelids.

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