Spirotrichonympha (spire-o-trick-o-nympha-a) is a trichonymphid flagellate from the intestines of the termite Reticulotermes. These are hypermastigids in which the flagella insert in spiral arrays. Nucleus lies some distance behind the anterior end of the cell, but more or less determines the boundary between the front and the back of the cell. The back of the cell is capable of ingesting particles of wood. Phase contrast.