Three types of excavata cells. Top: Jakobida, 1-nucleus, 2-anterior flagellum, 3-ventral/posterior flagellum, 4-ventral feeding groove. Middle: Euglenozoa, 1-nucleus, 2-flagellar pocket/reservoir, 3-dorsal/anterior flagellum, 4-ventral/posterior flagellum, 5-cytostome/feeding apparatus. Bottom: Trichomonas (metamonada), 1-anterior flagella, 2-parabasal body, 3-undulating membrane, 4-posterior flagellum,  5-nucleus, 6-axostyle.
Own work
Franciscosp2