High resolution image of the decorated ER tubules and 'rails' on the surface of the ER next to the myonemal sheet. Dense rods accompany the surface ridges adjacent to the myonemes. Pellicular pores are the peritrich homologue to clathrin coated pits. TEM taken on 6/9/69 by R. Allen with Philips 300 operating at 60kV. Neg. 36,500X. The raw film was scanned with a Nikon Coolscan 9000ED. This image is suitable for quantitative analysis. 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/).