Diatoms, light micrograph
Fragilaria diatoms, light micrograph
Asterionella diatoms, light micrograph
Epithemia diatoms, light micrograph
Diatoms and green algae, light micrograph
Diatoms on red algae, light micrograph
Diatom and green algae, light micrograph
Gomphonema diatoms, light micrograph
Diatoma diatoms, light micrograph
Diatoms and desmids, light micrograph
Diatoms on duckweed, light micrograph
Aquatic snail and diatoms on algae
Epithemia diatom, light micrograph
Desmid on red algae, light micrograph
Diatoms and cyanobacteria, micrograph
Cyanobacteria, light micrograph
Euglena protozoa, light micrograph
Cosmarium desmid, light micrograph
Micrasterias desmid, light micrograph
Xanthidium desmids, light micrograph
Desmid and chlorophytes, micrograph
Desmidium desmids, light micrograph
Spirogyra sp. algae, micrograph
Cocconeis sp. algae, light micrograph
Nitzschia sigmoidea and gomphonema algae, light micrograph
Diatoms and Cladophora algae, light micrograph
Diatoms and Spirogyra algae, micrograph
Suctorian protozoa and fragilaria diatoms, light micrograph
Suctorian protozoan and fragilaria diatoms, light micrograph
Suctorian protozoan and diatoms, light micrograph
Diatoms and red algae, light micrograph
Amoeba, diatoms and red algae, micrograph
Volvox green algae, light micrograph
Green alga and sphagnum moss, micrograph
Desmids and sphagnum moss, micrograph
Desmids on sphagnum moss, micrograph
Zygnema algae on sphagnum moss
Desmid on sphagnum moss, light micrograph
Desmid and red algae, light micrograph
Desmids and red algae, light micrograph
Green and red algae, light micrograph
Ophrydium protozoa, light micrograph
Protozoan on green algae, micrograph
Micrasterias desmids, light micrograph
Closterium desmid, light micrograph
Shelled amoeba, light micrograph
Desmids on sphagnum moss
Desmid and sphagnum moss, micrograph
Desmids and cyanobacteria, micrograph
Cosmarium desmids, light micrograph
Hyalotheca desmids, light micrograph
Desmids, light micrograph
Desmid on sphagnum moss, micrograph
Desmid and Dictyosphaerium green algae
Desmids and Dictyosphaerium green algae