collinia beringensis collinia beringensis collinia beringensis is a species of parasitoid ciliates of the colliniidae family. it is an endoparasite of thysanoessa inermis, a species of krill. collinia beringensis scientific classification domain: eukaryota (unranked): sar (unranked): alveolata phylum: ciliophora class: oligohymenophorea order: apostomatida family: colliniidae genus: collinia species: c. beringensis binomial name collinia beringensis(capriulo & small, 1986)