| Spirostreptida Brandt, 1833 (Order) |
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| Iulomorphidae Verhoeff, 1924 (Family) |
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| Amastigogonus Brölemann, 1913 (Genus) |
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| Atelomastix Verhoeff, 1924 (Genus) |
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| Dinocambala Attems, 1911 (Genus) |
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| Euethogonus Chamberlin, 1920 (Genus) |
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| Hypochlorella Attems, 1928 (Genus) |
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| Iulomorpha Porat, 1872 (Genus) |
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| Julomorpha Porat, 1872 (Genus) |
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| Merioproscelum Verhoeff, 1924 (Genus) |
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| Podykipus Attems, 1911 (Genus) |
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| Samichus Attems, 1911 (Genus) |
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| Stenjulomorpha Schubart, 1966 (Genus) |
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| Thaumaceratopus Verhoeff, 1924 (Genus) |
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| Victoriocambala Verhoeff, 1944 (Genus) |
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| Zinagon Chamberlin, 1957 (Genus) |
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