Family Tubificidae Vejdovský, 1876 - sludge worms see Family Naididae Ehrenberg, 1828 1 Subfamily Aulodrilinae see Subfamily Tubificinae Vejdovský, 1876 2 Genus Limnodrilus Claparède, 1862 3 Genus Tubifex Lamarck, 1816 4 Genus Monopylephorus Levinsen, 1884 5 Genus Peloscolex Leidy, 1851 6 Genus Psammoryctides Hrabě, 1964 7 Genus Quistadrilus Brinkhurst, 1981