Deuteramoeba algonquinensis (Baldock, Rogerson & Berger, 1983)

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Diagnosis. form polypodial, although one species monopodial and only polypodial on occasion. Moving cells generally 70 to 180 µm in length with one pseudopodium dominant. Pseudopodia without ridges. Anterior hyaline caps frequently fill with advancing granuloplasm. Posterior morulate uroid. Cytoplasm with crystals, most as paired inclusions or as bipyramidal crystals. Nucleus spherical with nucleolar material in a few granular pieces or as a central endosome. At least one species forms cysts.
At the ultrastructural level the cell coat has filaments.

Type species. Deuteramoeba algonquinensis

Ecology: Freshwater and terrestrial.