Most observed native clitellates
Native to the US, by how plants support them, most observed first.
Other species All
53 native species with no plant ties on record, most observed first.
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Smooth Turtle Leech
Placobdella parasitica
3,291 observations
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North American Medicinal Leech
Macrobdella decora
2,284 observations
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Sludge Worm
Tubifex tubifex
258 observations
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Duck Leech
Theromyzon tessulatum
245 observations
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Tiger Leech
Erpobdella punctata
204 observations
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Brook Leech
Glossiphonia elegans
142 observations
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Placobdella rugosa
128 observations
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Placobdella multilineata
111 observations