Drawing

Descrição:

Cercomonas crassicauda Dujardin, 1841. Cercomonad cells which are elongate-ovate, from two to two and a half times as long as broad, its substance granulate, caudal filament usually very thick at its base, tapering to a fine point at its distal end, about equal in length to the body, anterior flagellum finer and longer than the caudal filament, two or three contractile vacuoles, located near the anterior extremity, nucleus subcentral. Length of body 27 microns