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Choanoflagellida: Salpingoecidae

 Diploeca sp.
Ellis, 1930

Genus: Cell solitary; theca usually flask-shaped, of two layers; protoplast with 1 anterior flagellum encircled laterally by a well-developed collar (Illustrated Guide, 1985).
Species:
Similar Genus ->> Bicoeca (Bicosoecida); Stokesiella (Chrysophyta, Ochromonadidae)

Diploeca sp. (placita ? or Salpingoeca sp.) on Vorticella (1,2; comballaria, 3,4; campanula), cell body 11 μm long, flagellum > 18 μm long, x 400, x 640, Japan, 199? by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Diploeca Diploeca Diploeca Diploeca
Diploeca sp. on Campanella sp., x 400, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Diploeca Diploeca

D. placita: Theca 10 μm long, 4 μm wide; anterior flagellum ~10 μm long (Illustrated Guide, 1985).

cf.
Diplosiga Frenzel (Codonosigopsis Senn): With two collars; without lorica; a contractile vacuole; solitary or clustered; fresh water (Kudo, 1966). Transparent; ovoid; on stalk; solitary; with double collar (How to know the protozoa, 1979).

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