| Actinedida van der Hammen, 1968 (Order) |
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| Actinedida Eupodina (Suborder) |
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| Actinedida Eupodina Halacaroidea Murray, 1877 (Superfamily) |
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| Halacaridae Murray, 1877 (Family) |
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| Halacaridae subfam. Acarochelopodinae Bartsch, 1977 (Subfamily) |
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| Acarochelopoda Angelier, 1954 (Genus) |
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| Halacaridae subfam. Actacarinae Viets, 1939 (Subfamily) |
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| Actacarus Schulze, 1937 (Genus) |
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| Halacaridae subfam. Astacopsiphaginae Viets, 1931 (Subfamily) |
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| Astacopsiphagus Viets, 1931 (Genus) |
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| Halacaridae subfam. Australacarinae Otto, 2000 (Subfamily) |
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| Halacaridae subfam. Copidognathinae Bartsch, 1983 (Subfamily) |
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| Acarothrix I. Bartsch, 1990 (Genus) |
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| Copidognathides Bartsch, 1976 (Genus) |
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| Copidognathus Trouessart, 1888 (Genus) |
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| Pontacarus Lohmann, 1901 (Genus) |
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| Werthella Lohmann, 1907 (Genus) |
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| Halacaridae subfam. Enterohalacarinae Viets, 1938 (Subfamily) |
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| Enterohalacarus Viets, 1938 (Genus) |
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| Halacaridae subfam. HalacaridaeIncertaesedis (Subfamily) |
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| Acanthohalacarus Bartsch, 2001 (Genus) |
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| Acanthopalpus N. G. Makarova, 1978 (Genus) |
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| Agauides I. Bartsch, 1988 (Genus) |
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| Anomalohalacarus Newell, 1949 (Genus) |
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| Arenihalacarus H. Abe, 1991 (Genus) |
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| Australacarus I. Bartsch, 1987 (Genus) |
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| Bathyhalacarus Sokolov & Yankovskaya, 1968 (Genus) |
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| Camactognathus I. M. Newell, 1984 (Genus) |
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| Corallihalacarus Otto, 1999 (Genus) |
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| Halacaroides I. Bartsch, 1981 (Genus) |
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| Halacaropsis Bartsch, 1996 (Genus) |
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| Katharinera Vercammen-Grandjean, 1976 (Genus) |
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| Mictognathus I. M. Newell, 1984 (Genus) |
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| Pelacarus I. Bartsch, 1986 (Genus) |
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| Peregrinacarus Bartsch, 1999 (Genus) |
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| Phacacarus I. Bartsch, 1992 (Genus) |
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| Thalassophthirius V. M. Behan-Pelletier, 1989 (Genus) |
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| Tropihalacarus Otto & Bartsch, 1999 (Genus) |
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| Velardeacarus J. I. Gil & F. Mane-Garzon, 1980 (Genus) |
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| Werthelloides I. Bartsch, 1986 (Genus) |
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| Winlundia I. M. Newell, 1984 (Genus) |
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| Halacaridae subfam. Halacarinae Murray, 1877 (Subfamily) |
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| Agauopsis Viets, 1927 (Genus) |
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| Arhodeoporus Newell, 1947 (Genus) |
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| Atelopsalis Trouessart, 1896 (Genus) |
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| Coloboceras Trouessart, 1889 (Genus) |
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| Copidognathopsis Viets, 1927 (Genus) |
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| Halacarellus Viets, 1927 (Genus) |
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| Halacarus Gosse, 1855 (Genus) |
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| Halacaridae subfam. Halixodinae Viets, 1927 (Subfamily) |
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| Agaue Lohmann, 1889 (Genus) |
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| Bradyagaue Newell, 1971 (Genus) |
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| Halixodes Brucker & Trouessart, 1899 (Genus) |
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| Parhalixodes Laubier, 1960 (Genus) |
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| Polymela Lohmann, 1901 (Genus) |
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| Halacaridae subfam. Limnohalacarinae Viets, 1927 (Subfamily) |
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| Hamohalacarus Walter, 1931 (Genus) |
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| Himejacarus Imamura, 1957 (Genus) |
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| Limnohalacarus Walter, 1917 (Genus) |
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| Parasoldanellonyx Viets, 1929 (Genus) |
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| Soldanellonyx Walter, 1917 (Genus) |
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| Halacaridae subfam. Lohmannellinae Viets, 1927 (Subfamily) |
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| Lohmannella Trouessart, 1901 (Genus) |
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| Scaptognathus Trouessart, 1889 (Genus) |
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| Xenohalacarus Otto, 2000 (Genus) |
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| Halacaridae subfam. Porohalacarinae Viets, 1933 (Subfamily) |
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| Caspihalacarus Viets, 1928 (Genus) |
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| Lobohalacarus Viets, 1939 (Genus) |
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| Porohalacarus Sig Thor, 1922 (Genus) |
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| Troglohalacarus (Genus) |
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| Walterella Romijn, 1924 (Genus) |
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| Halacaridae subfam. Porolohmannellinae Viets, 1933 (Subfamily) |
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| Porolohmannella Viets, 1933 (Genus) |
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| Halacaridae subfam. Rhombognathinae Viets, 1927 (Subfamily) |
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| Isobactrus Newell, 1947 (Genus) |
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| Metarhombognathus Newell, 1947 (Genus) |
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| Rhombognathoides Viets, 1927 (Genus) |
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| Rhombognathopsis Viets, 1927 (Genus) |
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| Rhombognathus Trouessart, 1888 (Genus) |
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| Halacaridae subfam. Ropohalacarinae I. Bartsch, 1989 (Subfamily) |
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| Ropohalacarus I. Bartsch, 1989 (Genus) |
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| Halacaridae subfam. Simognathinae Viets, 1927 (Subfamily) |
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| Acarochelopodia Angelier, 1954 (Genus) |
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| Acaromantis Trouessart, 1893 (Genus) |
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| Simognathus Trouessart, 1889 (Genus) |
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| Halacaridae subfam. Spongihalacarinae Otto, 2000 (Subfamily) |
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| Spongihalacarus Otto, 2000 (Genus) |
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