Left side

Description:

Left side of the pleurostome ciliate,Opisthodon niemeccense (Stein,1859).The flexible cell is lanceolate in outline and laterally compressed.The somatic kineties of the right side meet at an anterior suture.A single file dorsal brush terminates in a small anterior depression (seen here).Thre are two perioral kineties.The oral aperture extends from the anterior end to the mid-body (on viewer's left). The macronucleus is bipartite. There is one contractile vacuole dorsally(on viewer's right here). Collected from sapropelic bottom sediments of a freshwater pond near Boise, Idaho;43°19'07.45"N  115°27'31.99"W,  elev.4712 ft.October 2005.DIC.