Silverline system

Description:

Image of the silverline system (argyrome) of Vorticella (Linnaeus, 1767). The fine parallel transverse striations have no interconnections. In the similar genera, Pseudohaplocaulus (Warren, 1988) and Pseudovorticella (Foissner and Schiffmann, 1975) the transverse argentophilic striations are connected by irregularly spaced vertical lines giving the silverline system a mesh-like appearance. In this instance the silverline system was tained by the silver carbonate technic technic (see Foissner, W. Europ. J. Protistol.27, 313-330; 1991). Usually silver carbonate and protargol methods do not stain the silverline sytem. The silverline sytem is most often stained using sliver nitrate methods. Collected from a freshwater pond near Boise, Idaho. Brightfield.