Nice view of the oral apparatus, macronuclear organization, cortex, and cytoplasm of Opercularia. Neg of unknown magnification. Estimate sizes from the approximate 0.2µm diameter of a ciliary axoneme. The raw film was scanned with an Epson Perfection V750 Pro.
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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