A high resolution tangential view of the surface of a non-dividing cell shows several ribbons of microtubules between the alveolar sac and the epiplasm. The thick fibrous layer associated with the epi...

A high resolution view of the cytopharynx but in a dividing Didinium. This cytopharynx is in the proter (anterior) daughter cell. The lamellae, each consisting of a set of perpendicularly arranged mic...

Kinetodesmal fibers arise from the proximal ends of the basal bodies and curve upward and to the cell’s right of the kinety. Together with kds arising from more posterior basal bodies they form a st...

A high resolution image of 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 glutaraldehy...

A cross section of the probosis oral apparatus of Didinium showing the organization, distribution of toxicysts, and the ribbons of microtubules that support the ingestion of large prey. Further detail...

A view of a part of the oral apparatus of Conchophthirus which reveals details of cortical structure. This includes one oral membranelle and three vestibular kinities as well as cytoplasm and cortical...

High resolution image of Halteria showing the extension of buccal cavity and the cytopharynx passing into the cell. Vesicles accumulate at the cytopharynx next to the lamellae. These vesicles may be h...

A high resolution image of a dikinetid of Euplotes shows the transverse microtubular ribbon as well as a postciliary ribbon extending from the posterior basal body. Vesicles containing electron opaque...

A high resolution image of a longitudinal microtubular ribbon sandwiched between the alveoli and the epiplasm in the crest of the pellicular ridge. A parasomal sac, the distal end of basal body, the p...

A high resolution image of the pellicle of Didinium, in cross section of a non-dividing cell, has a plasma membrane with a distinct glycocalyx on its external surface and a flattened alveolar sac syst...