It is characterized by flagellae, pseudopodia, or both. Amoeba proteus is very well known for its extending pseudopodia. Reticulopodia are complex structures bearing individual pseudopodia which form irregular nets. This form has a pseudopodia for locomotion. Species of "Amoeba" move and feed by extending temporary structures called pseudopodia. Lamellipodia are broad and flat pseudopodia used in locomotion. Protozoa are largely defined by their method of locomotion, including flagella, cilia, and pseudopodia. "Amoebozoa" are characterized by the use of pseudopodia for movement and feeding. Principally, these pseudopodia are food collecting structures. Different types of pseudopodia can be classified by their distinct appearances. "E. coli" trophozoites can be distinguished by their wide and tapered pseudopodia. Nassellarian feeding is mainly done through extension of pseudopodia out of the basal opening. Lillian and Paula began publishing a small, quarterly literary magazine, "Pseudopodia", in 1936. Like other lobose amoebae, "Chaos" move by extending pseudopodia. They use their pseudopodia, a temporary cell extension, for moving and taking in food.