cothurnia elegans cothurnia elegans cothurnia elegans is a species of peritrichs in the family vaginicolidae. it is found in australia. cothurnia elegans scientific classification domain: eukaryota (unranked): sar (unranked): alveolata phylum: ciliophora subphylum: intramacronucleata class: oligohymenophorea subclass: peritrichia order: sessilida family: vaginicolidae genus: cothurnia species: c. elegans binomial name cothurnia elegansswarczewsky, 1930