FIGS 19 in Ciliated protozoa from a volcanic crater-lake in Victoria, Australia

FIGS 19±22. L embadion curvatum n. sp. Silver-carbonate impregnation; (19, 21) ventral side of the cell. PO1, PO2, paroral kineties. PO1 is formed by paired kinetosomes (not zig-zagged). PO2 is formed by paired kinetosomes in zig-zag. Sometimes it seems to be formed by three kinetosomes arranged in zig-zag (see text). PK, oral polykinetid. CC, caudal cilia. L1, L2, L3, argentiferous longitudinal lines (L3 can be seen in (21 )). Ma, macronucleus. (20, 22) Dorsal side of the cell. Arrowheads in (20) and (21) to the`steps' marked by the end of the kineties in the middle course of PK.