Quick-freeze deep-etch rotary-shadowed replica of a portion of the chemically-unfixed cytopharynx. The cytopharynx is continuous with the plasma membrane and is covered by only one membrane which is p...

High resolution of the detail of the 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 7...

A higher resolution cross section of the oral basket from Nassula aurea (C.N.R.S., Yvette, France) through its “waist”. Rods, rod lamellae, and the surrounding sheath are seen. Cytopharyngeal vesi...

A high resolution image of a section through the cytopharynx of Coleps showing the corrugated lips containing lamellae surrounding the atrium of the buccal cavity. Rods composed of hexagonally packed ...

Polykinetids of one membranelle of the buccal cavity, probably membranelle 1. Accessory microtubules arise from the row of basal bodies on one side. Parasomal sacs are not seen associated with this me...

The two CV pores of a cell. An impression of the helically wound microtubules are detectable in the right pore. TEM taken on 4/21/78 by R. Allen with Hitachi HU11A operating at 60kV. Neg. 21,750X. Bar...

The postoral microtubular bundles form a track along which a newly released food vacuole rapidly migrates to the cell’s posterior end. Here the flattened cytopharyngeal membrane lies next to these b...

The finger-like alveolar extension in longitudinal view lies along the dorsal surface of the filamentous reticulum from which the cytopharyngeal microtubular ribbons originate. Whiskers of electron de...

Adapted with permission. Extensions of cytopharyngeal microtubular ribbons that pass into the endoplasm from the cytopharynx. Discoidal vesicles bind to one side only of these ribbons (the anterior si...

A circular depression on the dorsal surface of the cell marks the expulsion site of a contractile vacuole. This is referred to as the contractile vacuole “pore.". Microtubules encircle the pore. Tr...