Diatoms, light micrograph
Diatoms and green algae, light micrograph
Cymbella diatoms, light micrograph
Diatoms and Spirogyra algae, micrograph
Diatoms and red algae, light micrograph
Amoeba, diatoms and red algae, micrograph
Cymbella diatom, light micrograph
Diatoms, polarised light micrograph
Diatoms and Cladophora algae, light micrograph
Protozoa and diatoms in periphyton
Epithemia diatoms, light micrograph
Melosira diatoms, light micrograph
Diatoma diatoms, light micrograph
Gomphonema diatoms, light micrograph
Synedra diatoms, light micrograph
Gomphonema diatoms, polarised light micrograph
Diatom on cyanobacteria, light micrograph
Gyrosigma diatom, light micrograph
Diatom and green algae, micrograph
Diatom, light micrograph
Fossil diatom, light micrograph
Tabellaria diatoms, polarised light micrograph
Diatom and green algae, light micrograph
Cyanobacteria and diatom, micrograph
Tabellaria diatoms, light micrograph
Ophrydium protozoa, light micrograph
Aquatic snail and diatoms on algae
Diatoms, SEM
Fossil diatoms, light micrograph
Encyonema freshwater diatoms, light micrograph
Eucampia marine diatoms, light micrograph
Assorted diatoms, light micrograph
Campylodiscus sp. diatoms, light micrograph
Aulacoseira granulata diatoms, light micrograph
Navicula sp. marine diatom, light micrograph
Fragilaria diatoms, light micrograph
Asterionella diatoms, light micrograph
Diatoms on red algae, light micrograph
Diatom fossil, light micrograph
Caloneis freshwater diatom, light micrograph
Diploneis freshwater diatom, light micrograph
Craticula freshwater diatom, light micrograph
Marine diatom Gyrosigma fasicola, light micrograph
Diploneis freshwater diatom colony, light micrograph
Diatom, SEM
various Diatoms, light micrograph
Odontella sp. diatom, light micrograph
Diatoms and radiolaria, SEM
Diatoms on mayfly nymph, SEM
Ciliate and diatoms, light micrograph
Diatoms and cyanobacteria, micrograph
Cladophora green algae, light micrograph