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Stylodrilus heringianus
Species, Annelid, Freshwater, terrestrial
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Stylodrilus lemani
Species, Annelid, Freshwater, terrestrial
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Stylodrilus parvus
Species, Annelid, Freshwater, marine, terrestrial
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Thalassodrilus prostatus
Species, Annelid, Freshwater, marine
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Theromyzon tessulatum – duck leech
Species, Annelid, Freshwater, terrestrial
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Trocheta bykowskii
Species, Annelid, Freshwater, marine, terrestrial
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Trocheta subviridis
Species, Annelid, Freshwater, terrestrial
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Tubifex ignotus
Species, Annelid, Freshwater, marine, terrestrial
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Tubifex nerthus
Species, Annelid, Freshwater, marine, terrestrial
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Tubifex tubifex
Species, Annelid, Freshwater, marine, terrestrial
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Tubificoides benedii
Species, Annelid, Freshwater, marine
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Tubificoides pseudogaster
Species, Annelid, Freshwater, marine
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Uncinais uncinata
Species, Annelid, Freshwater, marine
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Vejdovskyella comata
Species, Annelid, Freshwater, marine