Ancistrum is a marine ciliate that inhabits the mantle cavity of mytiliid mussels. This image is a slightly higher resolution scan of CIL:24921 that shows a good view of the macronucleus and what are ...

Cytoplasm of a green Trichodina that lives on the surface of a freshwater snail collected in central Illinois. In this view the abundant endosymbiotic zoochlorellae and a single endosymbiotic bacteriu...

A view of the entry to the oral apparatus of the green Trichodina that lives on the surface of a freshwater snail collected in central Illinois. In this view the haplokinety and the polykinety of the ...

A view of the cytoplasm of a green Trichodina that lives on the surface of a freshwater snail collected in central Illinois. In this view the 10 endosymbiotic bacteria are evident as well as an endosy...

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...

Only the macronucleus contains nucleoli which is the site of ribosomal RNA synthesis and ribosome subunit assembly. This EM also contains the distal end of the food vacuole forming cytopharynx which c...

Food vacuoles arise from the single membrane that lines the cytopharynx. Vesicles, similar to discoidal vesicles, attach to the cytopharyngeal microtubules (lamellar clumps) that arise from the dorsal...

The contractile vacuole pore is supported on its cytosolic side by a coil of microtubules and other microtubules extend from the pore to the CV membrane. The plasma membrane and CV membrane cover the ...

The ER tubules in the spasmoneme bear elements of the linkage complex, both the mid piece and rails. These elements are more disperse than in the body of the cell. The fibers from the mid piece pass i...

The acidosome-like vesicle has a bull’s eye appearance with the invagination appearing in the middle of the vesicle. Other vesicles contain multiple layers resembling multilipid layers. Two vesicles...