It is a fine example of European architecture, designed and built by Sir Michael Filose. They are sometimes grouped by whether they are "filose" or "reticulose". Nucleariida is a group of amoebae with filose pseudopods, known mostly from soils and freshwater. The group includes most amoeboids and flagellates that feed by means of filose pseudopods. Colonel Filose and Colonel Alexander were Catholics, but Colonel Jacob was an Armenian. Together with the nucleariids they include the majority of the naked filose amoebae. Feeding occurs through the pseudopodia of the cell, filose pseudopodia engulf and phagocytize prey. The ancestral opisthokont cell is assumed to have possessed slender filose (thread-like) projections or 'tentacles'. Cercozoan amoeboids, such as "Euglypha" and "Gromia", have slender, thread-like (filose) pseudopods. The amoebae move using filose pseudopods, and are attracted to chemicals produced by other amoebae. Filopodia (or filose pseudopods) are slender and filiform with pointed ends, consisting mainly of ectoplasm. Other notable filose cercozoans include the cercomonads, which are common soil flagellates. Some other filose amoebae produce organic shells, including the tectofilosids and "Gromia".