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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Platyhelminthes (flatworms)
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Class Turbellaria
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Order Macrostomida
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Family Macrostomidae
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Genus Macrostomum
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Species Macrostomum collistylum
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Species Macrostomum curvistylum
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Species Macrostomum gilberti
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Species Macrostomum glochostylum
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Species Macrostomum lewisi
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Species Macrostomum lineare
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Species Macrostomum norfolkense
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Species Macrostomum ontarioense
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Species Macrostomum orthostylum
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Species Macrostomum phillipsi
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Species Macrostomum reynoldsi
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Species Macrostomum riedeli
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Species Macrostomum ruebushi
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Species Macrostomum sensitivum
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Species Macrostomum sillimani
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Species Macrostomum stirewalti
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Species Macrostomum tennesseense
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Species Macrostomum tuba
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Species Macrostomum virginianum
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