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Porifera (sponges)
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Class Demospongiae
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Order Lithistida
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Family Azoricidae
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Family Corallistidae
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Family Desmanthidae
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Family Isoraphiniidae
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Family Lithistida incertae sedis
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Family Macandrewiidae
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Family Neopeltidae
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Family Phymaraphiniidae
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Family Phymatellidae
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Family Pleromidae
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Family Scleritodermidae
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Family Siphonidiidae
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Family Theonellidae
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Family Vetulinidae
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