Diatom frustules, SEM
Diatom frustule, SEM
Diatom shell, SEM
Diatom, SEM
Diatom, light micrograph
Diatoms, SEM
Scenedesmus algae, SEM
Diatoms in sediment, SEM
Orbulina foraminiferan, SEM
Haematococcus algae, light micrograph
Golden algae, light micrograph
Diatoms, light micrograph
Haematococcus alga, light micrograph
Spirogyra algae, light micrograph
Green algae, light micrograph
Diatom algae, SEM
Colonial diatom, SEM
Synechococcus cyanobacteria, SEM
Pleurosigma sp diatom, light micrograph
Microalgae, light micrograph
Microcoleus cyanobacteria, SEM
Cyanobacteria, SEM
Radiolarian, SEM
Amphisphaerina radiolarian, SEM
Acrosphaera radiolarian, SEM
Symbiodinium dinoflagellates, light micrograph
Diatom alga, SEM
Melosira sp diatoms, light micrograph
Pleurosigma sp diatoms, light micrograph
Scrippsiella sp. dinoflagellates, light micrograph
Colonial diatom rhabdonema, SEM
Diatoms and radiolaria, SEM
Marine diatom alga, SEM
Selection of diatoms, SEM
Amoeba protozoa, SEM
Euplotes protozoa, SEM
Climacostomum protozoan, SEM
Euglena flagellate protozoa, SEM
Tabellaria diatoms, SEM
Archaea, SEM
Dinoflagellate protozoan, SEM
Tetrahymena protozoan, SEM
Ciliate protozoan, SEM
Paramecium protozoan, SEM
Vorticella protozoan, SEM
Chilodonella ciliate protozoan, SEM
Ciliate protozoans, SEM
Licmophora diatom alga, SEM
Pediastrum green algae, light micrograph
Stentor ciliate protozoa light micrograph
Plankton, SEM
Dinoflagellate, SEM
Thalassiosira diatom, LM