Genus: Lorica attached aborally by stalk; operculum attached just behind peristomal border
(Illustrated Guide, 1985).
Body attached posteriorly to a lorica; a discoidal corneous operculum developed beneath
border of peristome (Kudo, 1966).
Species:
Similar Genus ->> Thuricola;
Vaginicola;
Cothurnia;
Platycola Pyxicola pusilla or similar species,
cell body 50 μm long, 18 μm wide, L/W=2.8,
peristome 17 μm wide,
lorica 45 μm long, 25 μm wide, L/W=1.8,
x 640, near Oh-hashi (large bridge), Asa-kawa (Asa river), Hachioji city, Tokyo, Japan, March 26, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640