11 micrographs of views of a serially-sectioned contracted Vorticella convallaria cell that show the main features of this cell. This figure shows 5 food vacuoles and the edges of 2 more. The connection of the stalk with the cell body and the myonemes merging into the spasmoneme that passes into the contractile stalk are seen. The aboral end of the elongated macronucleus now appears. TEM taken on 4/2/71 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 2,150X. The raw negative was scanned with an Epson Perfection V750 Pro and this high resolution image is best used for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
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