Genus: Solitary or colonial; individual with tubular test; young individuals are
attached to the exterior of parent tests (Kudo, 1966).
Loricas tubular, attached to sides of one another (How to know the protozoa, 1979).
Species:
Hyalobryon,
tube-like lorica 30-40 μm long, 5 μm wide,
x 640, x 400, x 640, near Okubo ike (pond as water reservoir), Shinano town, Nagano Pref., Japan, November 7, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640