Dodatak:Popis trbodlaka, M
- Macrodasyida
- Macrodasyida incertae sedis
- Macrodasyidae Remane, 1924
- Macrodasys Remane, 1924
- Marinellina
- Megadasys Schmidt, 1974
- Mesodasys Remane, 1951
- Multitubulatina
- Musellifer Hummon, 1969
- Muselliferidae Leasi & Todaro, 2008