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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Deuterostomia (deuterostomes)
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Craniata (craniates)
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Euteleostomi (bony vertebrates)
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Order Cyprinodontiformes
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Genus Fundulus
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Fundulus nottii
Bayou topminnow
(Also: Gulf starhead topminnow; Southern starhead topminnow; starhead topminnow)