Genus: Lorica has constricted neck instead of collar; lorica smooth; many species
(How to know the protozoa, 1979).
Species:
Lorica broad spindle-shaped or ellipsoidal, collar cylindrical, surface smooth,
28-38 μm long, 12-17 μm wide, lorica opening slanted
(Illustrations of the Fresh-water Algae, 1977).
Similar genus -->>Trachelomonas;
Strombomonas fluviatilis (Lemmermann) Deflandre,
lorica 69 μm long, 32 μm wide,
x 640, wetland, near Town Hall, Shobu town, Saitama Pref., Japan, June 27, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Trachelomonas (Strombomonas) fluviatilis (Lemmermann) Deflandre:
Lorica broad spindle-shaped or ellipsoidal, collar cylindrical, surface smooth,
28-38 μm long, 12-17 μm wide, lorica opening slanted
(Illustrations of the Fresh-water Algae, 1977).