| Euixodes hexagonus Bonnet, 1908 (synonym) |
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| Ixodes auricularis Robineau-Desvoidy, 1836 (synonym) |
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| Ixodes autumnalis Leach, 1815 (synonym) |
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| Ixodes autumnalis Schulze, 1941 (synonym) |
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| Ixodes erinacei Audouin, 1832 (synonym) |
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| Ixodes erinaceus Murray, 1877 (synonym) |
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| Ixodes hexagonus Clifford et al., 1973 (synonym) |
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| Ixodes hexagonus Neumann, 1911 (synonym) |
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| Ixodes hexagonus hexagonus Neumann, 1911 (synonym) |
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| Ixodes hexagonus hungaricus Babos, 1964 (synonym) |
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| Ixodes hexagonus pacata Doss & Anastos, 1977 (synonym) |
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| Ixodes hexagonus pacata Schulze, 1937 (synonym) |
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| Ixodes hexagonus rarus Morel & Pérez, 1973 (synonym) |
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| Ixodes sexpunctatus Koch, 1844 (synonym) |
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| Ixodes vulpis Pagenstecher, 1861 (synonym) |
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| Pholeoixodes hexagonus Morel & Pérez, 1973 (synonym) |
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