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Eumetazoa (metazoans)
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Bilateria (bilaterally symmetrical animals)
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Protostomia (protostomes)
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Arthropoda (arthropods)
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Crustacea (shrimps, crabs, lobsters, water fleas, and relatives)
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Class Maxillopoda
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Class Malacostraca
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Order Amphipoda
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Family Acanthonotozomellidae
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Family Allocrangonyctidae
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Family Amathillopsidae
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Family Ampeliscidae
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Family Amphilochidae
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Family Ampithoidae
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Family Anisogammaridae
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Family Aoridae
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Family Argissidae
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Family Aristiidae
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Family Artesiidae
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Family Bateidae
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Family Biancolinidae
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Family Bogidiellidae
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Family Calliopiidae
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Superfamily Caprelloidea
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Family Ceinidae
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Family Cheluridae
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Family Colomastigidae
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Family Corophiidae
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Family Crangonyctidae
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Family Cressidae
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Family Cyamidae
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Family Cyphocarididae
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Family Cyproideidae
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Superfamily Cystisomatoidea
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Family Dexaminidae
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Family Dogielinotidae
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Family Endevouridae
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Family Eophliantidae
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Family Epimeriidae
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Family Eusiridae
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Family Exoedicerotidae
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Family Gammaracanthidae
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Family Gammarellidae
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Family Gammaridae
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Family Gammaroporeiidae
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Family Hadziidae
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Family Haustoriidae
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Family Hyalellidae
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Family Hyalidae
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Family Hyperiopsidae
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Family Ingolfiellidae
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Family Iphimediidae
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Family Isaeidae
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Family Ischyroceridae
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Family Kamakidae
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Family Lafystiidae
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Superfamily Lanceoloidea
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Family Laphystiopsidae
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Family Leucothoidae
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Family Liljeborgiidae
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Superfamily Lycaeopsoidea
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Family Lysianassidae
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Family Megaluropidae
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Family Melitidae
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Family Melphidippidae
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Family Mesogammaridae
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Family Najnidae
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Family Neomegamphopidae
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Family Nihotungidae
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Family Ochlesidae
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Family Odiidae
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Family Oedicerotidae
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Family Opisidae
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Family Paracalliopiidae
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Family Paracrangonyctidae
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Family Paraleptamphopiidae
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Family Pardaliscidae
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Family Phliantidae
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Family Phoxocephalidae
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Family Phreatogammaridae
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Superfamily Phronimoidea
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Superfamily Phtisicoidea
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Family Platyischnopidae
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Superfamily Platysceloidea
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Family Pleustidae
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Family Podoceridae
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Family Pontoporeiidae
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Family Pseudocrangonyctidae
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Family Rakiroidae
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Superfamily Scinoidea
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Family Scopelocheiridae
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Family Sebidae
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Family Stegocephalidae
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Family Stenothoidae
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Family Stilipedidae
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Family Synopiidae
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Family Talitridae
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Family Uristidae
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Family Urothoidae
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Family Valettidae
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Superfamily Vibilioidea
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Family Vitjazianidae
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