“…Suctorian ciliates are common commensals on the representatives of marine meiofauna including nematodes, halacarids, harpacticoid copepods, kinorhynchs etc. from different regions around the world (Precht, 1935;Tato-Porto, 2000a, 2000b;Dovgal et al, 2008aDovgal et al, , 2008bDovgal et al, , 2009aDovgal et al, , 2009bIngole et al, 2010;Chatterjee et al, , 2013Chatterjee et al, a, 2013bChatterjee et al, , 2013Chatterjee et al, c, 2014aChatterjee et al, , 2014bChatterjee et al, , 2018. Recently, individuals of the suctorian ciliate Praethecacineta halacari were observed on Copidognathus venustus Bartsch, 1977 and two different Rhombognathus sp.…”