Ceratium sp. dinoflagellates, light micrograph
Scrippsiella sp. dinoflagellates, light micrograph
Testate amoeba, light micrograph
Stentor sp. ciliates, light micrograph
Nitzschia sp. diatom and red algae, light micrograph
Stylonychia ciliate, light micrograph
Ophiocytium sp. algae, light micrograph
Melosira sp diatoms, light micrograph
Pleurosigma sp diatoms, light micrograph
Pleurosigma sp diatom, light micrograph
Porphyridium sp. red algae, light micrograph
Stentor sp. ciliate, light micrograph
Stentors ciliate, light micrograph
Ciliate, light micrograph
Loxophyllum ciliate protozoa, light micrograph
Symbiodinium dinoflagellates, light micrograph
Rotifer, light micrograph
Phacus sp., light micrograph
Uroleptopsis protozoan, light micrograph
Netrium desmid, light micrograph
Micrasterias desmid, light micrograph
Micrasterias desmids, light micrograph
Netrium desmids, light micrograph
Stentor protozoan, light micrograph
Haematococcus alga, light micrograph
Euastrum desmid, light micrograph
Ciliate protozoan, light micrograph
Spirogyra algae, light micrograph
Xanthidium desmids, light micrograph
Desmids, light micrograph
Diatoms, light micrograph
Cosmarium desmids, light micrograph
Green algae, light micrograph
Euastrum desmids, light micrograph
Diatom, light micrograph
Vorticella protozoan, light micrograph
Loxophyllum ciliate, light micrograph
Green alga, light micrograph
Vorticella protozoa, light micrograph
Hypotrich protozoan, light micrograph
Paramecium ciliate protozoa, light micrograph
Stentor ciliate protozoa light micrograph
Microsterias green alga, light micrograph
Pediastrum green algae, light micrograph
Keratella quadrata rotifer, light micrograph
Amoeba, light micrograph
Algae, light micrograph
Stentor ciliate, light micrograph
Microorganisms, light micrograph
Vorticella sp. ciliate, light micrograph
Synedra sp. diatoms, light micrograph
Cymbella sp. diatoms, light micrograph
Closterium sp. desmid, light micrograph
Stentor sp. ciliate and diatoms, light micrograph
Hypotrich ciliate, light micrograph
Gomphonema sp. diatoms and green alga, light micrograph
Lepadella sp. rotifer, light micrograph
Spirulina sp. cyanobacteria, light micrograph
Vorticella peritrich, light micrograph
Silicoflagellate, light micrograph
Cyanobacteria, polarised light micrograph
Desmid, light micrograph
Bambusina desmids, light micrograph
Paramecium protozoan,light micrograph
Paramecium protozoa,light micrograph
Paramecium protozoa, light micrograph
Chlorella sp., green algae, light micrograph
Ophiocytium sp., green algae, light micrograph
Cosmarium reniforme sp. algae, light micrograph
Amphileptus sp. ciliate, light micrograph
Hydorus sp. water flea, light micrograph
Suctorian ciliate, light micrograph
Nassula sp. protozoa, light micrograph
Heliozoan and Sirgonium, light micrograph
Rotifer and green algae, light micrograph
Heliozoans on green alga, light micrograph
Closterium sp. green algae, light micrograph
Carchesium colony, light micrograph
Stentor sp. ciliate and red algae, light micrograph
Proteus amoeba, light micrograph
Ciliate protozoa, light micrograph
Stentor ciliate and diatoms, light micrograph
Ciliate and Batrachospermum red algae, light micrograph
Amoeba protozoan, light micrograph
Arcella sp., light micrograph
Volvox colony, light micrograph
Spirulina cyanobacteria, light micrograph
Phaeothamnion sp. algae, light micrograph
Glaucocystis sp. alga, light micrograph
Glaucocystis sp. algae, light micrograph
Ophiocytium sp. alga, light micrograph
Tribonema sp. algae, light micrograph
Xanthonema sp. algae, light micrograph
Trachelomonas sp. protist, light micrograph
Phacus alga, light micrograph
Phacus algae, light micrograph
Trachelomonas alga, light micrograph
Ophiocytium algae, light micrograph
Frontonia protist, light micrograph
Radiolarian, light micrograph
Rivularia cyanobacteria, light micrograph
Ophrydium protozoa, light micrograph
Euglena protozoan, light micrograph
Euglena protozoa, light micrograph
Iodamoeba buetschlii parasitic cyst
Euglena flagellate protozoan
Euglena sp. algae, light micrograph
Euglena mutabilis algae, light micrograph
Euglena mutabilis alga, light micrograph
Closterium moniliferum algae, light micrograph
Trachelomonas volvocinopsis alga, light micrograph
Trachelomonas volvocinopsis algae, light micrograph
Phacus ranula algae, light micrograph
Phacus ranula alga, light micrograph