Natura - nature
actualia - actual entities
Mundus Plinius - physical world
naturalia - natural bodies
Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Clade neomura Cavalier-Smith, 1987
Domain Eukaryota Chatton, 1925 - eukaryotes
Clade discaria Cavalier-Smith, 2021
Clade dorsates Cavalier-Smith, 2021
Clade podiates Cavalier-Smith, 2012
Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
Clade Obazoa Brown, Sharpe, Silberman, Heiss, Lang, Simpson & Roger 2013
Clade Opisthokonta Cavalier-Smith 1987 [Simpson & Medina 2020] - animal-fungal clade
Superkingdom Holozoa Lang, O'Kelly, Nerad, Gray & Burger, 2002
Clade filozoa Shalchian-Tabrizi, Minge, Espelund, Orr, Ruden, Jakobsen & Cavalier-Smith, 2008
Kingdom Animalia Linnaeus, 1758 - animals
Clade Planulozoa Wallberg, Thollesson, Farris & Jondelius 2004
Subkingdom Bilateria Hatschek, 1888 - bilaterians
Clade Nephrozoa Jondelius, Ruiz-Trillo, Baguñà & Riutort 2002
Infrakingdom Protostomia Grobben, 1908
Superphylum Spiralia Schleip, 1929
Clade Platytrochozoa Struck, Wey-Fabrizius, Golombek, Hering, Weigert, Bleidorn, Klebow, Iakovenko, Hausdorf, Petersen, Kück, Herlyn & Hankeln 2014
Clade Lophotrochozoa Halanych, Bacheller, Aguinaldo, Liva, Hillis & Lake 1995 - lophotrochozoans
Clade Trochozoa Beklemischev, 1944 - trochozoans
Phylum Annelida Lamarck, 1809 - segmented worms
Class Clitellata Michaelsen, 1919
Subclass Hirudinida
Order Rhynchobdellida Blanchard, 1894
Family Piscicolidae Johnston, 1865
Genus Aestabdella Burreson, 1976
Genus Austrobdella Badham, 1916
Genus Baicalobdella Dogel, 1957
Genus Beringobdella
Genus Caspiobdella Epstein, 1966
Genus Cystobranchus Diesing, 1859
Genus Hemibdella Beneden & Hesse, 1863
Genus Johanssonia Selensky, 1914
Genus Mysidobdella Selensky, 1927
Genus Notostomum Levinsen, 1882
Genus Oceanobdella Caballero y Caballero, 1956
Genus Orientobdella Epshtein, 1962
Genus Ostreobdella Oka, 1927
Genus Oxytonostoma Malm, 1863
Genus "Piscicolaria" Whitman, 1889, nom. nud.
Genus Trachelobdella
1 Subfamily Piscicolinaeᵀ Llewellyn, 1966
2 Subfamily Platybdellinae Epshtein, 1970
3 Subfamily Pontobdellinae Caballero, 1956