Myzostomida
Cystimyzostomum Jagersten, 1940
Endomyzostoma Perrier, 1897
Hypomyzostoma Perrier, 1897
Myzostoma Leuckart, 1829
Myzostomum Leuckart, 1827
Notopharyngoides Fishelson, 1974
Protomyszostomum
Pulvinomyzostomum Jägersten, 1940