Tetrahymenidae

Tetrahymenidae
Tetrahymena thermophila
Scientific classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: Sar
Clade: Alveolata
Phylum: Ciliophora
Class: Oligohymenophorea
Order: Hymenostomatida
Suborder: Tetrahymenina
Family: Tetrahymenidae

Tetrahymenidae is a family of ciliates.