Search for genus Hydra returned 87 results.
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species: Hydra mesembryanthemum
Kingdom: Animalia
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species: Hydra crataegaria
Kingdom: Animalia
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species: Hydra parva
Kingdom: Animalia
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species: Hydra madagascariensis
Kingdom: Animalia
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species: Hydra mariana
Kingdom: Animalia
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species: Hydra oligactis – Brown Hydra
Brown Hydra, Grey Hydra
Kingdom: Animalia
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species: Hydra campanulata
Kingdom: Animalia
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species: Hydra harbinensis
Kingdom: Animalia
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species: Hydra rubra
Kingdom: Animalia
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species: Hydra orientalis
Kingdom: Animalia