Acanthodrilus africanus Beddard, 1897 accepted as Chilota africanus (Beddard, 1897) (new combination reference)
Acanthodrilus capensis Beddard, 1885 accepted as Chilota capensis (Beddard, 1885) (new combination reference)
Acanthodrilus excavatus Beddard, 1897 accepted as Chilota excavatus (Beddard, 1897) accepted as Parachilota excavatus (Beddard, 1897) (new combination reference)
Acanthodrilus lucifuga Beddard, 1897 accepted as Chilota lucifuga (Beddard, 1897) accepted as Chilota lucifugus (Beddard, 1897) (new combination reference)
Acanthodrilus photodilus Beddard, 1897 accepted as Chilota photodilus (Beddard, 1897) accepted as Parachilota photodilus (Beddard, 1897) (new combination reference)
Acanthodrilus purcelli Beddard, 1897 accepted as Chilota purcelli (Beddard, 1897) (new combination reference)
Aeolosoma beddardi Michaelsen, 1900 (original description)
Alluroididae Michaelsen, 1900 (original description)
Benhamia aitkeni Fedarb, 1898 accepted as Octochaetus aitkeni (Fedarb, 1898) (new combination reference)
Bothrioneuron Štolc, 1886 (source of synonymy)
Bothrioneurum [auct. misspelling] accepted as Bothrioneuron Štolc, 1886 (basis of record)
Branchiodrilus Michaelsen, 1900 (original description)
Chaetogaster crystallinus Vejdovský, 1884 accepted as Chaetogaster cristallinus Vejdovský, 1884 (additional source)
Chilota patagonica (Kinberg, 1866) (status source)
Dichogaster bolaui (Michaelsen, 1891) represented as Dichogaster (Diplothecodrilus) bolaui (Michaelsen, 1891) (new combination reference)
Dichogaster bolaui (Michaelsen, 1891) represented as Dichogaster (Diplothecodrilus) bolaui (Michaelsen, 1891) (basis of record)
Dichogaster modiglianii (Rosa, 1896) represented as Dichogaster (Diplothecodrilus) modiglianii (Rosa, 1896) (basis of record)
Diporochaeta Beddard, 1890 (taxonomy source)
Diporochaeta dendyi (Spencer, 1893) (basis of record)
Drawida Michaelsen, 1900 (original description)
Eiseniella Michaelsen, 1900 (original description)
Enchytraeus buchholzi Vejdovský, 1878 (source of synonymy)
Eupolygaster modiglianii (Rosa, 1896) (status source)
Eutyphoeus Michaelsen, 1900 (original description)
Eutyphoeus orientalis (Beddard, 1883) (new combination reference)
Glossoscolecidae Michaelsen, 1900 (original description)
Haplotaxidae Michaelsen, 1900 (original description)
Hesperoscolex Michaelsen, 1900 (original description)
Hesperoscolex barbadensis (Beddard, 1893) (basis of record)
Hesperoscolex columbianus (Michaelsen, 1900) (basis of record)
Hesperoscolex hesperidum (Beddard, 1893) (basis of record)
Hoplochaetella Michaelsen, 1900 (original description)
Hoplochaetella stuarti (Bourne, 1886) (new combination reference)
Hormogastridae Michaelsen, 1900 (original description)
Lumbricus baicalensis Michaelsen, 1900 (additional source)
Mandane patagonica Kinberg, 1866 accepted as Chilota patagonica (Kinberg, 1866) (taxonomy source)
Megascolex monticola (Fletcher, 1888) (additional source)
Megascolides frenchi (Spencer, 1892) accepted as Plutellus frenchi (Spencer, 1892) accepted as Vesiculodrilus frenchi (Spencer, 1892) (new combination reference)
Nematogenia panamaensis (Eisen, 1900) (basis of record)
Notiodrilus luisae Michaelsen, 1899 accepted as Microscolex luisae (Michaelsen, 1899) (new combination reference)
Octochaetidae Michaelsen, 1900 (original description)
Octochaetus aitkeni (Fedarb, 1898) (basis of record)
Octochaetus antarcticus (Beddard, 1889) (basis of record)
Octochaetus huttoni Beddard, 1893 (additional source)
Octochaetus levis (Hutton, 1877) (basis of record)
Octochaetus multiporus (Beddard, 1885) (basis of record)
Paranais litoralis (Müller, 1784) (taxonomy source)
Perichaeta dorsalis Fletcher, 1887 accepted as Megascolex dorsalis (Fletcher, 1887) (new combination reference)
Perichaeta hoggii Spencer, 1893 accepted as Megascolex hoggii (Spencer, 1893) (additional source)
Plutellus frenchi (Spencer, 1892) accepted as Vesiculodrilus frenchi (Spencer, 1892) (basis of record)