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Phytomastigophora: Volvocida: Polyblephaeridina: Carteriiidae
Chlorophyta: Chlorophyceae: Dunaliellales

Polytomella parva
Pringsheim 1955

Polytomella Genus (Aragoa): Cell body ovoid or pyriform with conical or pointed posterior end; 4 equal-length flagella inserted at the base of a papilla; cells colorless; eyspot present or absent; 1-layered cysts common; 2 anterior contractile vacuoles; cell division by longitudinal fission; sexual reproduction isogamous to form a 4-flagellate zygote (Illustrated Guide, 1985).
Species: Cell body narrowly egg-shaped; a small papilla present; no eyespot (John et al. 2002).


Polytomella parva Pringsheim 1955, stock Sim-1, axenic culture with EM, cell body μm long, μm wide, cytoplasm gathered at anterior half of the cell body, x 640, Near Chyokyu-ji (temple), Miyadera, Iruma city, Saitama Pref., Japan, May 2003 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva

Polytomella parva, stock Sim-1, axenic culture with EM (June 9 to June 12, 2003, in a test tube), cell body μm long, μm wide, cytoplasm gathered at posterior half of the cell body, x 640, Near Chyokyu-ji (temple), Miyadera, Iruma city, Saitama Pref., Japan, May 2003 by Y. Tsukii
Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva

Polytomella, stock Sim-2?, axenic culture (February 4 to March 7, 2006), cysts 10-13 μm in diam., x 400, x 640, Japan, 2006 by Y. Tsukii
Polytomella parva Polytomella parva Polytomella parva Polytomella parva Polytomella parva


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