[Light- and electron-microscopic study of pelobiont Pelomyxa secunda (Gruber, 1884) comb. nov. (Archamoebae, Pelobiontida)].

Morphology of a pelobiont Pelomyxa secunda (Gruber, 1884) comb. nov. was investigated at light- and electron-microscopical levels.

[Reisolation and redescription of pelobiont Pelomyxa paradoxa Penard, 1902 (Archamoebae, Pelobiontida)].

Morphology of a pelobiont Pelomyxa paradoxa Penard, 1902 was investigated at light- and electron-microscopical levels. Locomoting cells are cigar-shaped. The cells produce many hyaline pseudopodia of digital and conical form at lateral sides of the body.

[Comparative morphology of the subphilum Conosa Cavalier-Smith 1998].

Comparative analysis of archamoebae and slime molds morphology revealed that this organisms have a marked similarity in organization of locomotive forms, structure of glycocalix and also in organization of nuclear and flagellar apparatus. A possible scheme of formation the modern diversity of Conosa group was proposed.

[Morphology of Mastigamoeba aspera Schulze, 1875 (Archamoebae, Pelobiontida)].

The morphology of Mastigamoeba aspera, a type species of the genus Mastigamoeba Schulze, 1875, has been investigated at the light- and electron-microscopical level. Motile individuals are oval or peach-shaped. Motile flagella is situated at the anterior end of uninucleate cells.

[Light- and electron-microscopical study of Pelomyxa flava sp. n. (archamoebae, pelobiontida)].

Using light and electron microscopy, the morphology of a new species of pelobionts Pelomyxa flava was studied. The coverings of P. flava are represented by plasma membrane bearing the thick layer of weakly structured glycocalyx on its outer surface.