Monopisthocotylea
Actinocleidus
Aliatrema
Ancyrocephalus
Bravohollisia
Cleidodiscus
Enterogyrus
Euryhaliotrema
Euryhaliotrematoides
Eutrianchoratus
Haliotrema
Haliotrematoides
Heteronchocleidus
Ligophorus
Malayanodiscoides
Mastacembelocleidus
Metahaliotrema
Onchobdella
Onchocleidus
Placodiscus
Pseudohaliotrema
Quadriacanthus
Scutogyrus
Tetrancistrum
Thylacicleidus
Trianchoratus
Urocleidus