A checklist of ciliates (Ciliophora) inhabiting on cnidarians Author Chatterjee, Tapas Near Harimandir Road, Dhanbad 826001, Jharkhand, India. Author Dovgal, Igor A. O. Kovalevsky Institute of Biology of the Southern Seas of Russian Academy of Sciences, 2, Nakhimov ave., Sevastopol, 299011, Russia. Author Fernandez-Leborans, Gregorio Department of Biodiversity, Ecology and Evolution, Facultad de Biología, Universidad Complutense de Madrid, C / José Antonio Novais, 12, 28040, Madrid, Spain. text Zootaxa 2021 2021-09-15 5039 2 151 178 journal article 10.11646/zootaxa.5039.2.1 1175-5326 5508963 C2B00051-A562-4FCA-83D5-DE284D0D90CE Cothurnia spissa Fromentel, 1874 = Cothurnia calix ( Wailes, 1928 ) Record as epibiont on cnidarians: Under synonymic name Cothurnia calix the species was recorded on hydroids from Departure Bay, Canada ( Wailes 1943 ; Mccazuley & Hancock 1971 ). Record as epibiont on other hosts: The species also found on the algae from Departure Bay, Canada ( Wailes 1943 , Mccazuley & Hancock 1971 ). The species was found attached to freshwater Confervae ( Warren & Paynter 1991 ).