Chelicerata Heymons, 1901 Opiliones Sundevall, 1833 - harvestmen Phalangida Bristowe, 1949 Suborder Dyspnoi Hansen & Sørensen, 1904 - ornate harvestmen Superfamily Troguloidea Sundevall, 1833 Family Nemastomatidae Simon, 1872 Genus Mitostoma Roewer, 1951