A checklist of ciliates (Ciliophora) inhabiting on cnidarians Chatterjee, Tapas Dovgal, Igor Fernandez-Leborans, Gregorio Zootaxa 2021 2021-09-15 5039 2 151 178 YXNB Dons, 1946 Dons 1946 [151,561,835,862] Oligohymenophorea Vaginicolidae Cothurnia Chromista Peritrichida 16 167 Ciliophora species trophoniae   Record as epibiont on other hosts:This species was also found as epibiont on alga  Polysiphonia violacea(Roth) Sprengel, 1827, on polychaetes  Trophonia plumosa(Müller, 1771)and  Stylarioides plumosa(O.F. Müller, 1776), and on pantopod  Pallene brevirostrisJohnston, 1837in the Kiel Bay (the North Sea) ( Precht 1935). The species was also found on alga  Enteromorpha flexuosa(Wulfen) J. Agardh, 1883in Tamiahua Lagoon, Veracruz, Mexico( Aladro-Lubel et al. 2006). In addition, the species was registered in the Baltic Sea ( Mironova et al. 2009). Recently, the species was found on the green filamentous algae  Cladophora sivashensisMeyer, 1922in the Sivash Bay (the Sea of Azov) ( Sergeeva et al. 2020).