Family: More ore less broadly ovate, granular mass postcentral,
usually surrounded by clear border.
Genus: Without pseudopods from clear border; body mass as a post-central hump
(Illustrated Guide, 1985).
Similar Genus -->> Cochliopodium;
Vannella;
Hyalodiscus rubicundus Hertwig & Lesser 1874,
cell body 38 μm long, 53 μm wide, L/W=0.7,
x 640, Futayo-no-ike (pond) near Haguro mountain, Haguro town, Yamagata Pref., Japan, July 10, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640