Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Annelida (Annelid)
Clitellata
Leech (Hirudinea)
Euhirudinea (True leeches)
Arhynchobdellida (Proboscisless leeches)
Hirudiniformes
Xerobdellidae
Xerobdella
Xerobdella anulata (50359991)