are predatory ciliates. However, they give very little indication of the ciliate-ness. There are normally no cilia. Suctoria
are sessile, and only when they divide do they produce ciliated forms which then swim away and find somewhere new to settle. Instead the body produces a number of tentacles. These are mouths, and the end of the them are expanded because of a concentration of extrusomes which are used to grab hold of their food - usually other protists. This form is stalked. Differential interference contrast.