Family: Free-floating or attached; with or without pedicel; solitary or colonical with clearly visible periplast or theca; collar well developed, laterally encircling base of single flagellum; 2 or more contractile vacuoles posterior (Illustrated Guide, 1985).
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).
Similar Genus ->> Bicoeca (Bicosoecida); Stokesiella (Chrysophyta, Ochromonadidae)
Diploeca ?
μm
Japan, 199?
