Related how?
Biota
(Life)
Eukaryote
(Eukarya)
Chromista
Harosa
Halvaria
Alveolate
(Alveolata)
Ciliophora
(Ciliates)
Oligohymenophorea
Peritrichia
(Peritrich)
Sessilida
(Sesselida)
Operculariidae
Opercularia
(Opercularia (ciliate))
Opercularia nutans (
62001961
)