Haplotaxida
Alphadrilus Brinkhurst, 1988
Delaya Brinkhurst, 1988
Haplotaxis Hoffmeister, 1843
Hologynus Brinkhurst, 1988
Pelodrilus Beddard, 1891
Pheroryctes Rapp, 1849
Phreoryctus Forbes, 1890
Tiguassu Righi, Ayres & Bittencourt, 1978