Protodrilus a anclud 19 fieuj:
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Protodrilus affinis Jouin 1968
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Protodrilus albicans Jouin 1970
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Protodrilus brevis Jouin 1970
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Protodrilus ciliatus Jägersten 1952
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Protodrilus gelderi Riser 1997
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Protodrilus hatscheki Pierantoni 1908
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Protodrilus hochbergi Martínez, Di Domenico, Jörger, Norenburg & Worsaae 2013
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Protodrilus huanghaiensis Wu, Sun & Chen 1980
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Protodrilus infundibuliformis Schmidt & Westheide 1977
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Protodrilus jagersteni von Nordheim 1989
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Protodrilus leuckartii Hatschek 1881
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Protodrilus litoralis von Nordheim 1989
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Protodrilus oculifer Pierantoni 1908
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Protodrilus puniceus Sato-Okoshi, Okoshi & Fujiwara 2015
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Protodrilus pythonius Di Domenico, Martínez, Lana & Worsaae 2013
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Protodrilus robustus Jägersten 1952
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Protodrilus smithsoni Martínez, Di Domenico, Jörger, Norenburg & Worsaae 2013
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Protodrilus spongioides Pierantoni 1903
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Protodrilus submersus von Nordheim 1989
vëdde ëd pi