Nitzschia sp. diatom and red algae, light micrograph
Red algae and diatoms, light micrograph
Suctorian ciliate, light micrograph
Stentor sp. ciliate and red algae, light micrograph
Stentor ciliate and red algae, light micrograph
Green and red algae, light micrograph
Ciliate and Batrachospermum red algae, light micrograph
Pond life, light micrograph
Red alga and diatoms, polarised light micrograph
Porphyridium sp. red algae, light micrograph
Coscinodiscus sp. diatom, LM
Heliozoan and Sirgonium, light micrograph
Achnanthes sp. algae, light micrograph
Tabellaria sp. algae, light micrograph
Odontella sp. algae, light micrograph
Porphyridium sordidum algae, light micrograph
Batrachospermum sp., LM
Stylonema sp. red alga filaments, LM
Diatoms, light micrograph
Algae, light micrograph
Microorganisms, light micrograph
Closterium sp. green algae, light micrograph
Synedra diatom group, LM
Diatoma diatom, LM
Stephanodiscus diatom, LM
Odontella sp. diatom, LM
Cymbella sp. Diatoms, LM
Compsopogon red alga, LM
Batrachospermum sp. red algae, light micrograph
Rotifer and green algae, light micrograph
Microalgae settled on Lemna sp. root, light micrograph
Synedra sp. diatoms, light micrograph
Cymbella sp. diatoms, light micrograph
Stentor sp. ciliate and diatoms, light micrograph
Gomphonema sp. diatoms and green alga, light micrograph
Cymbella Diatoms, LM
Asterionella diatoms, LM
Rotifer, light micrograph
Navicula diatoms, light micrograph
Melosira sp. diatoms, LM
Batrachospermum red algae, light micrograph
Ankistrodesmus sp. green algae, LM
Pyramimonas sp. green algae, LM
Zygnema sp. algae filaments, LM
Heliozoans on green alga, light micrograph
Stentor ciliate and diatoms, light micrograph
Pandorina sp. algae, light micrograph
Phormidium sp. algae, light micrograph
Pyrocystis sp. algae, light micrograph
Phaeothamnion sp. algae, light micrograph
Glaucocystis sp. algae, light micrograph
Tribonema sp. algae, light micrograph
Xanthonema sp. algae, light micrograph
Ophiocytium sp. algae, light micrograph
Chlorella sp., green algae, light micrograph
Ophiocytium sp., green algae, light micrograph
Cosmarium reniforme sp. algae, light micrograph
Staurastrum sp. green algae, light micrograph
Volvox sp., green algae, light micrograph
Cyanobacteria and diatoms, light micrograph
Diatoms on red algae, light micrograph
Rhoicosphenia sp. algae, light micrograph
Chaetoceros sp. algae, light micrograph
Orthoseira sp. algae, light micrograph
Euglena sp. algae, light micrograph
Pediastrum dupley algae, LM
Tabellaria freshwater diatoms, LM
Gyrosigma freshwater diatoms, LM
Thalassiosira punctigera, light micrograph
Diatom, light micrograph
Cyanoptyche algae, light micrograph
Woloszynskia algae, light micrograph
Phacus algae, light micrograph
Ophiocytium algae, light micrograph
Botryococcus sp. algae, LM
Microthamnion sp. green alga, LM
Euglena mutabilis algae, light micrograph
Peridinium cinctum algae, light micrograph
Netrium digitus algae, light micrograph
Staurastrum margaritaceum algae, light micrograph
Scenedesmus quadricauda algae, light micrograph
Leonella granifera algae, light micrograph
Groenbladia undulata algae, light micrograph
Pyramimonas amylifera algae, light micrograph
Mesostigma viride algae, light micrograph
Spirogloea muscicola algae, light micrograph
Cryptomonas lundii algae, light micrograph
Closterium moniliferum algae, light micrograph
Tetmemorus granulatus algae, light micrograph
Pyrocystis lunula algae, light micrograph
Trachelomonas volvocinopsis algae, light micrograph
Phacus ranula algae, light micrograph
Phacus smulkowskianus algae, light micrograph
Haplotaenium rectum algae, light micrograph
Pleurotaenium truncatum algae, light micrograph
Tetraselmis chui algae, light micrograph
Euastrum humerosum desmid algae, light micrograph
Pediastrum duplex cf. algae, light micrograph
Difflugia amoeba and sp. diatoms, light micrograph
Colacium sp., LM
Dictyospaerium sp., LM
Coelastrum sp., LM
Glaucocystis sp., LM
Oedogonium sp., LM
Stigeoclonium sp., LM
Vaginicola ciliate on cyanobacteria, light micrograph
Glaucocystis sp. alga, light micrograph
Ophiocytium sp. alga, light micrograph
Scenedesmus sp. green alga, LM
Monomorphina sp. (Euglenozoa), light micrograph
Phormidium sp. cyanobacteria, light micrograph
Algae and ciliate on aquatic plant, light micrograph
Ceratium sp. dinoflagellates, light micrograph
Stentor sp. ciliates, light micrograph
Stentor sp. ciliate, light micrograph
Scrippsiella sp. dinoflagellates, light micrograph
Mougeotia sp. green alga, light micrograph
Pediastrum green algae, light micrograph
Eudorina green algae, light micrograph
Amoeba with Euglena and diatoms, light micrograph
Ophrydium protozoa, light micrograph
Bambusina sp. green algae, light micrograph
Audouinella sp., light micrograph
Closterium sp. desmid, light micrograph
Hydorus sp. water flea, light micrograph
Batrachospermum algae and diatoms, light micrograph
Batrachospermum red algae and diatoms, light micrograph
Pinnularia Diatom
Red algae, light micrograph
Thalassiosira diatom, LM
Thalassionema diatom, LM
Chaetoceros diatom, LM
Ditylium diatom, LM
Eucampia diatom, LM
Thalassiosira sp. diatom, light micrograph
Nematode among green algae, light micrograph
Batrachospermum sp. algae, light micrograph
Glaucocystis algae, LM