Chelicerata Heymons, 1901 Opiliones Sundevall, 1833 - harvestmen Suborder Cyphophthalmi Simon, 1879 - mite harvestmen 1 Family Neogoveidae Shear, 1980 2 Family Ogoveidae Shear, 1980 3 Family Pettalidae Shear, 1980 4 Family Sironidae Leach, 1816 5 Family Stylocellidae Hansen & Sørensen, 1904 [monotypic] 6 Family Troglosironidae Shear, 1993