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| Hydrochidae |
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| Hydrochus angustatus Germar, 1824 |
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| Hydrochus brevis (Herbst, 1793) |
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| Hydrochus crenatus (Fabricius, 1792) |
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| Hydrochus elongatus (Schaller, 1783) |
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| Hydrochus flavipennis Küster, 1852 |
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| Hydrochus grandicollis Kiesenwetter, 1870 |
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| Hydrochus ignicollis Motschulsky, 1860 |
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| Hydrochus megaphallus Berge Henegouwen, 1988 |
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| Hydrochus nitidicollis Mulsant, 1844 |
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| Hydrochus smaragdineus Fairmaire, 1879 |
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