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Biota (Life)
Eukaryote (Eukarya)
Chromista
Harosa
Halvaria
Alveolate (Alveolata)
Ciliophora (Ciliates)
Spirotrichea (Spirotrich)
Sporadotrichida
Oxytrichidae
Stylonychinae

Rigidohymena (25361429)

Children (4 direct children, 4 direct and indirect children):

Rigidohymena tetracirrata

Rigidohymena quadrinucleata

Rigidohymena inquieta

Rigidohymena candens