The Amoebidae are a family of amoebozoa, including naked amoebae that produce multiple pseudopodia of indeterminate length. These are roughly cylindrical in form, with a central stream of granular endoplasm, and do not have subpseudopodia. During locomotion one pseudopod typically becomes dominant, and the others are retracted as the body flows into it. In some cases the cell moves by "walking", with the relatively permanent pseudopodia serving as limbs. Subgroups Mycetozoa (slime moulds) Archamoebae Gymnamoebia Various others The Amoebozoa are a major group of amoeboid protozoa, comprising the majority of the amoebae that move using blunt or lobose pseudopods. ...

The most important genera are Amoeba and Chaos, which are set apart from the others by longitudinal ridges. They group together on molecular trees, suggesting the Amoebidae are a natural group. Shelled amoebozoans have not been studied molecularly but produce very similar pseudopodia, so although they are traditionally classified separately they may be closely related to this group. Amoeba is a genus of protozoa that moves by means of temporary projections called pseudopods, and is well-known as a representative unicellular organism. ... Chaos is a genus of giant amoebae, varying from 1-5 mm in length. ...

References

• Jahn, Bovee, Jahn (1979) How to know the protozoa, Wm. C. Brown Company Publishers. ISBN 0-697-04759-8