Dorsal infraciliature of Uroleptus piscis (MUELLER,1773) EHRENBERG,1831. 1-5= Dorsal bristle kineties. Collected from a eutrophic freshwater pond in Boise,Idaho.Stained by the Protargol A technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991).Brightfield.