Vase-shaped Thuricola

SESSILE CILIATES

length approx. 220 – 420 µm
usually one longer and one shorter individual live together in a transparent lorica
individuals are trumpet-shaped
when irritated they retreat into the lorica

IN ACTIVATED SLUDGE AND BIOFILMS:

tolerant of ammonium loads and high ammonium concentrations
relatively tolerant of oxygen concentration

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