Kingdom [Animalia] Linnaeus, 1758 - animals Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818 Class Ciliata see [unranked] ciliates Order Peritricha Stein, 1859 Suborder Mobilia Genus [Trichodina] Ehrenberg, [1830] 1 Trichodina domerguei Wallengren, 1897 2 Trichodina pediculus (Müller, 1773) Ehrenberg, 1830