| Diplopoda DeBlainville in Gervais, 1844 (Class) |
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| Julida Brandt, 1833 (Order) |
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| Aprosphylosomatidae Hofman, 1961 (Family) |
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| Blaniulidae C. L. Koch, 1847 (Family) |
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| Californiulidae Verhoeff, 1938 (Family) |
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| Chelojulidae Enghoff, 1991 (Family) |
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| Galliobatidae Brölemann, 1921 (Family) |
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| Isobatidae Cook, 1895 (Family) |
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| Julida_incerta_sedis (Family) |
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| Julidae Leach, 1814 (Family) |
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| Leucogeorgiidae Verhoeff, 1930 (Family) |
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| Mongoliulidae Pocock, 1903 (Family) |
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| Nemasomatidae Bollman, 1893 (Family) |
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| Nemasomidae Chamberlin & Hoffman, 1958 (Family) |
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| Okeanobatidae Verhoeff, 1942 (Family) |
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| Pachyiulidae Verhoeff, 1899 (Family) |
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| Paeromopidae Cook, 1895 (Family) |
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| Paeromopodidae Cook, 1895 (Family) |
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| Paraiulidae Bollman, 1893 (Family) |
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| Parajulidae Bollman, 1893 (Family) |
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| Protoiulidae Verhoeff, 1896 (Family) |
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| Pseudonemasomatidae Enghoff, 1991 (Family) |
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| Rhopaloiulidae Attems, 1926 (Family) |
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| Telsonemasomatidae Enghoff, 1991 (Family) |
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| Trichoblaniulidae Verhoeff, 1911 (Family) |
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| Trichonemasomatidae Enghoff, 1991 (Family) |
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| Zosteractiidae Loomis, 1943 (Family) |
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| Zosteractinidae Loomis, 1943 (Family) |
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