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| Kingdom Animalia |
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Acanthodrilidae -- valid |
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Alluroididae -- valid |
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Arctiostrotus McKey-Fender, 1982 -- valid |
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Arctiostrotus adunatus McKey-Fender, 1994 -- valid |
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Arctiostrotus altmani (Gates, 1942) -- valid |
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Arctiostrotus fontinalis McKey-Fender, 1994 -- valid |
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Arctiostrotus johnsoni McKey-Fender, 1994 -- valid |
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Arctiostrotus perrieri (Benham, 1892) -- valid |
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Arctiostrotus pluvialis McKey-Fender, 1994 -- valid |
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Arctiostrotus vancouverensis McKey-Fender, 1994 -- valid |
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Drilocheira Fender and McKey-Fender, 1990 -- valid |
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Drilocheira chenowithensis (McKey-Fender, 1970) -- valid |
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Driloleirus Fender & McKey-Fender, 1990 -- valid |
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Driloleirus americanus (Smith, 1897) -- valid |
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Driloleirus cascadensis (Smith, 1937) -- valid |
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Driloleirus eiseni (Smith, 1937) -- valid |
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Driloleirus macelfreshi (Smith, 1937) -- valid |
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Driloleirus michaelseni (Smith, 1937) -- valid |
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Driloleirus wellsi (Altman, 1936) -- valid |
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Enchytraeida -- invalid |
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Enchytraeidae -- valid |
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Enchytraeina -- invalid |
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Eudrilidae -- valid |
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Glossoscolecidae -- valid |
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Haplotaxida Brinkhurst, 1971 -- invalid -- aquatic oligochaete worm |
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Haplotaxidae Michaelsen, 1900 -- valid -- aquatic oligochaete worm |
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Haplotaxina -- invalid |
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Kincaidodrilus McKey-Fender, 1982 -- valid |
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Kincaidodrilus kincaidii (Altman, 1936) -- valid |
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Komarekionidae -- valid |
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Kurenkovidae -- invalid |
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Lumbricidae -- valid |
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Lutodrilidae -- valid |
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Macnabodrilus Fender & McKey-Fender, 1990 -- valid |
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Macnabodrilus hopsonae (McKey-Fender, 1970) -- valid |
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Megascolecidae -- valid |
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Moniligastrida -- valid |
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Moniligastridae -- valid |
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Ocnerodrilidae -- valid |
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Octochaetidae -- invalid |
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Parvidrilidae Erséus, 1999 -- valid -- aquatic oligochaete worm |
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Propappidae Coates, 1986 -- valid |
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Randiellidae -- valid |
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Sparganophilidae -- valid |
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Tiguassidae -- invalid |
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Toutellus Fender & McKey-Fender, 1990 -- valid |
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Toutellus adecus (Macnab & McKey-Fender, 1959) -- valid |
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Toutellus hyoiedes (Macnab & McKey-Fender, 1959) -- valid |
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Toutellus oregonensis (Smith, 1937) -- valid |
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Toutellus toutellus (Altman, 1936) -- valid |
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Tubificida Brinkhurst, 1982 -- valid -- aquatic oligochaete worm |
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Tubificina -- invalid |
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