Dero incisa Michaelsen, 1903 accepted as Dero digitata (Müller, 1774) (original description)
Dichogaster greeffi Michaelsen, 1903 (original description)
Drawida burchardi Michaelsen, 1903 (original description)
Eisenia kucenkoi Michaelsen, 1903 (original description)
Eisenia nordenskioldi caucasica Michaelsen, 1903 (original description)
Eisenia skorikowi Michaelsen, 1903 (original description)
Eisenia veneta zebra Michaelsen, 1903 (original description)
Eudichogaster Michaelsen, 1903 (original description)
Eudichogaster ashworthi Michaelsen, 1903 (original description)
Eudrilus kamerunensis Michaelsen, 1903 (original description)
Glyphidrilus malayanus Michaelsen, 1903 (original description)
Helodrilus (Allolobophora) acystis Michaelsen, 1903 accepted as Eisenia nordenskioldi acystis (Michaelsen, 1903) (original description)
Helodrilus (Dendrobaena) attemsi Michaelsen, 1903 accepted as Dendrobaena attemsi (Michaelsen, 1903) (original description)
Helodrilus (Dendrobaena) ganglbaueri (Rosa, 1894) accepted as Dendrobaena ganglbaueri (Rosa, 1894) (basis of record)
Helodrilus (Dendrobaena) ganglbaueri annectens (Rosa, 1895) (basis of record)
Helodrilus (Dendrobaena) ganglbaueri byblica (Rosa, 1893) accepted as Dendrobaena byblica (Rosa, 1898) (basis of record)
Helodrilus (Dendrobaena) ganglbaueri olympiaca Michaelsen, 1903 (original description)
Helodrilus (Eophila) sotschiensis Michaelsen, 1903 (original description)
Iridodrilus preussi Michaelsen, 1903 (original description)
Limnodrilus newaensis Michaelsen, 1903 accepted as Tubifex newaensis (Michaelsen, 1903) (original description)
Microchaetus griseus Michaelsen, 1903 accepted as Tritogenia grisea (Michaelsen, 1903) (original description)
Pheretima dunckeri Michaelsen, 1903 (original description)
Thamnodrilus buchwaldi Michaelsen, 1903 accepted as Thamnodrilus iserni (Rosa, 1895) (original description)
Thamnodrilus rehbergi Michaelsen, 1903 (original description)
Zapotecia keiteli Michaelsen, 1903 (original description)