Family: Peristomal disc usually on stalk; with furrow that separates, elevates disc from margin of zooid.
Genus: Colonical when mature; macronucleus rounded; some species loricate (Illustrated Guide, 1985). Stalk non-contractile.
->> Description at WPRNO Google Image Search
Orbopercularia sp.
51 x 20 μm
Japan, 199?
Orbopercularia sp.
55 x 20 μm
Matsubushi
Saitama, 2003
Orbopercularia sp.
50 x 17 μm
Tenbo marsh
Tsugaike highland
Nagano, 2005
Orbopercularia sp.
55 x 30 μm
Kitamoto n.o.p.
Kitamoto
Saitama, 2007
Orbopercularia sp.
μm
Botanical Garden
Chuo-ku
Chiba, 2008
Orbopercularia sp.
μm
Kurome River
Asaka
Saitama, 2008
