High resolution image of a tangential section of basal body pair (dikinetid) showing a connecting fiber linking the BBs as well as attachments to a kinetodesmal fiber, to postciliary microtubules, an...

Cilia arise out of shallow depressions in the cell surface. Accessory microtubules, the transverse microtubules and postciliary microtubules splay out from the sides of the basal bodies of a dikinetid...

A micrograph showing the partially open cytoproct of Colpoda cucullus. The alveoli stop at the edges of the cytoproct and filamentous material (actin?) coats the inside of the single membrane that cov...

A view of the cytopharynx and its nascent food vacuole forming region. The flattened pharyngeal vesicles that may contain monolayers or bilayers of lipids seem to be equivalent to the discoidal vesicl...

Cortex and cytoplasm of Didinium. This cell cortex image includes the extrusive organelles mucocysts involved in cyst formation and one cyrtocyst of unknown function. Also, a few ciliated basal bodies...

Cortex and food vacuole of Didinium. The food vacuole contains unexploded trichocysts of Paramecium. Further details available at Wessenberg, H. and Antipa, G. 1968. Studies on Didinium nasutum. I. St...

A high resolution image of the base of a dikinetid deeper in the cell. A postciliary ribbon and other microtubules fan out from it's basal bodies. TEM taken on 6/3/69 by R. Allen with Philips 300 oper...

A high resolution micrograph showing the partially open cytoproct of Colpoda cucullus. The alveoli stop at the edges of the cytoproct and filamentous material (actin?) coats the inside of the single m...

A higher magnification view that shows the bilayer nature of the ciliary membrane, plasma membrane and the outer and inner (alveolar sac membranes of the alveoli. The 9-doublet + 2-singlet microtubula...

Longitudinal section of a striated band lying superficially to an arm of the infraciliary lattice but not contacting it. A post is seen at the junction of a branch in the infraciliary lattice. TEM tak...