Darkfield photomicrograph of a testate amoeba Difflugia bacillifera


Testate amoebae (or thecamoebians, Arcellinida or lobose testate amoebae) are single-celled protists partially enclosed in a simple test (shell).They are commonly found in soils, leaf litter, peat bogs and near/in fresh water. Almost all testate amoebae reproduce asexually via binary fission. A sexual component to reproduction has not yet been found. Testate amoebae move by using pseudopodia (false feet), a temporary cell extension used for moving, and taking in amoebae taxa are differentiated by their test characteristics and what kind of pseudopodia they have (lobose, recticulose, or filose).


Size: 5106px × 3455px
Photo credit: © Scenics & Science / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: amoeba, arcella, arenaria, bacillifera, biodiversity, darkfield, difflugia, ecology, heleopera, microscope, photomicrograph, pseudopodia, soil, sphangi, testate, vulgaris