In this article we will discuss about the structure of opalina. This will also help you to draw the structure and diagram of opalina.
1. It is an endoparasite in the rectum of vertebrates especially frogs and toads.
2. Body some what oval and flattened with uniform cilliation all over.
3. Cytostome, cytopharynx, cytopyge and vacuoles are absent, but a tough pellicle is present.
4. Cytoplasm differentiated into ectoplasm and endoplasm.
5. Ectoplasm has oblique rows of myonemes.
6. Endoplasm has numerous nuclei.
7. Nutrition saprozoic.
8. Reproduction through plasmotomy binary fission, encystment and conjugation.