Family: Vestibule at the anterior end; with gelatinous lorica; swim backward (Kudo, 1966).
Genus: Peristome circular, vestibule anterior; cytostome left-ventral, a slit; body cup-shaped; colonial, in gelatinous, dichotomous loricae; swims backwards (How to know the protozoa, 1979).
->> Description at WPRNO Google Image Search
M. socialis
72 x 52 μm
Saitama, 1998
M. socialis
64 x μm
Naruto
Chiba, 2003
M. socialis
48 x μm
Kisai town
Saitama, 2003
M. socialis
68 x 48 μm
near Town Hall
Shobu town
Saitama, 2004
Maryna sp.
37 x 23 μm
near Konuma
Akagi mountain
Gunma, 2005
Maryna sp.
39 x 26 μm
near Yakebitai mt.
Shiga highland
Nagano, 2006
