Achaeta affinis Nielsen & Christensen, 1959 (additional source)
Achaeta bohemica (Vejdovský, 1879) (additional source)
Achaeta littoralis Lasserre, 1968 (additional source)
Bryodrilus parvus Nurminen, 1970 (additional source)
Buchholzia fallax Michaelsen, 1887 (additional source)
Buchholzia fallax var. arenaria Healy, 1979 accepted as Buchholzia fallax Michaelsen, 1887 (original description)
Cernosvitoviella atrata (Bretscher, 1903) (additional source)
Cognettia cognettii (Issel, 1905) (additional source)
Cognettia sphagnetorum (Veydovsky, 1878) (additional source)
Enchytraeus capitatus von Bülow, 1957 (additional source)
Enchytronia parva Nielsen & Christensen, 1959 (additional source)
Fridericia alata Nielsen & Christensen, 1959 (additional source)
Fridericia aurita Issel, 1905 (additional source)
Fridericia bulboides Nielsen & Christensen, 1959 (additional source)
Fridericia bulbosa (Rosa, 1887) (additional source)
Fridericia callosa (Eisen, 1878) (additional source)
Fridericia connata Bretscher, 1902 (additional source)
Fridericia galba (Hoffmeister, 1843) (additional source)
Fridericia gracilis von Bülow, 1957 accepted as Fridericia minor Friend, 1913 (additional source)
Fridericia healyae Schmelz, 2003 (additional source)
Fridericia paroniana Issel, 1904 (additional source)
Fridericia perrieri (Vejdovský, 1878) (additional source)
Fridericia polychaeta Bretscher, 1900 (redescription)
Henlea similis Nielsen & Christensen, 1959 (additional source)
Lumbricillus profugus (Eisen, 1878) (additional source)
Marionina argentea (Michaelsen, 1889) (additional source)
Marionina communis Nielsen & Christensen, 1959 (additional source)
Marionina spicula (Leuckart, 1847) (additional source)
Mesenchytraeus armatus (Levinsen, 1884) (additional source)
Mesenchytraeus glandulosus (Levinsen, 1884) (additional source)
Mesenchytraeus sanguineus Nielsen & Christensen, 1959 (additional source)

 Nomenclature

 for Buchholzia fallax var. arenaria Healy, 1979

a new name published after 1960 expressly as a ‘variety’ is considered to be infrasubspecific and as such does ... [details]