A high resolution overview of Opercularia coarctata showing that cytostome divides the peristome from the cytopharynx. The cytopharynx starts where the alveoli end in the oral region. TEM taken on 6/1...

A view of the microtubular bundles that compose rods that outline the food vacuole-forming zone of Coleps. Eleven of these rods that surround the oral apparatus are obliquely sectioned in this microgr...

A high resolution image of an individual cirrus of Euplotes with 91 cilia/basal body complexes. The transition from basal body to cilium can be followed from right to left in each row. Small vesicles,...

Cross section of basket from Nassula aurea (C.N.R.S., Yvette, France) through its “waist”. Rods, rod lamellae, and the surrounding sheath are seen. Cytopharyngeal vesicles fill the basket lumen an...

Detail of cytopharyngeal basket from Nassula aurea. Microtubules make up the rods, rod lamellae and sheath. TEM taken on 3/2/71 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 19,500X. Bar = 0....

Oblique section of the Coleps contractile vacuole pore revealing the supporting microtubules and adjacent fibrous layer. Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in al...

An image of the transition from basal bodies to cilia within a portion of one of the oral membranelles of Euplotes. Parasomal sacs occur between the rows of basal bodies although these endocytic ports...

An image that shows the extensive layer of cortical microtubules which lie under the pellicle and many other microtubules and mitochondria that form a mass in the cytosol. Standard glutaraldehyde fixa...

The proximal ends of the basal bodies of a cirrus are embedded in a perforated plate of electron opaque material. Microtubules arise from this opaque material. A secondary fretwork of connections bind...

This high resolution micrograph may show important features involved in calcareous plate formation within the alveoli that underlie the plasma membrane in Coleps. Densities are seen on the inner alveo...