Primitive wood-dwelling termites represented by Calotermes flavicollis: Morphology and mode of movement in flagellates living in the fermentation chamber: Joenia in Calotermes, Koruga and Mixotricha in Mastotermes; Mixotricha with bacteria which show flagella-like movement. Spirotrichonymphs and trichonymphs in Reticulitermes. Other small flagellates and bacteria. With animation 24-100 frames/s.