Heterotrich ciliate Stylonychia

It is here seen from the underside, moving upside down on the underside of the coverglass. The Stylonychia can be considered a typical example of a heterotrich ciliate (although in some systems it is classed as a hypotrich) on account of the cirri on its ventral surface (underside) which act as legs, and the membranelle which follows the line of the oral groove