spesies yang ditemukan dalam air tawar dan banyak dipelajari dalam laboratorium.
|This article needs additional citations for verification. (December 2015) (Learn how and when to remove this template message)|
(Pallas, 1766) Leidy, 1878
This small protozoan uses tentacular protuberances called pseudopodia to move and phagocytose smaller unicellular organisms,(which may be greater in size than of amoeba), which are enveloped inside the cell's cytoplasm in a food vacuole, where they are slowly broken down by enzymes. Amoeba proteus is very well known for its extending pseudopodia. It occupies freshwater environments and feeds on other protozoans, algae, rotifers, and even other smaller amoebae. Due to phytochromes, A. proteus may appear in a variety of colors (often yellow, green and purple) under a microscope.