Leptomyxida Pussard and Pons 1976, emend. Page 1987
Naked; locomotive form altering from flattened expanded or reticulate when slowly moving, to subcylindrical monopodial one when in rapid movement or under specific conditions; adhesive uroid.
1. Rhizamoeba Page 1972
Stationary forms flattened with numerous pseudopodia, often covered with debris; monopodial in locomotion, often eruptive; uni- or multinucleate. Some species form cysts.
2. Leptomyxa Goodey 1914
The distinction between Rhizamoeba and Leptomyxa is ambiguous.
Leptomyxa reticulata Goodey 1914
This large Leptomyxa reticulata cell has a length of 400 µm.