Algae and ciliate on aquatic plant, light micrograph
Green alga on an aquatic plant, light micrograph
Ciliate protozoa, light micrograph
Green algae on aquatic plant stalk, light micrograph
Vaginicola ciliate on cyanobacteria, light micrograph
Algae settled on Myriophyllum sp., light micrograph
Closterium sp. desmid, light micrograph
Green alga, light micrograph
Diatoms, light micrograph
Diatom, light micrograph
Rhodomonas sp. algae, light micrograph
Meridion circulare diatoms, LM
Volvox sp. green algae, light micrograph
Desmids, light micrograph
Stentor ciliate and red algae, light micrograph
Stentor sp. ciliate and red algae, light micrograph
Stentor ciliate and diatoms, light micrograph
Stentor sp. ciliate and diatoms, light micrograph
Difflugia amoeba and sp. diatoms, light micrograph
Ditylium brightwellii marine diatom, LM
Phacus sp. flagellate, LM
Bellerochea malleus diatoms, LM
Rivularia cyanobacteria, light micrograph
Heliozoans on green alga, light micrograph
Rivularia cyanobacteria colony, light micrograph
Heliozoan and Sirgonium, light micrograph
Cyanobacteria and diatoms, light micrograph
Filamentous cyanobacteria, light micrograph
Stentors ciliate, light micrograph
Stentor ciliate, LM
Coleps ciliate, LM
Stentor ciliate, light micrograph
Stentor sp. ciliate, light micrograph
Aquatic plant with cyanobacteria and algae, light micrograph
Desmids and spirogyra, light micrograph
Green algae, light micrograph
Tabellaria fenestrata, light micrograph
Cladophora green algae, light micrograph
Netrium desmid, light micrograph
Mediopyxis helysia diatoms, LM
Water milfoil stalk, light micrograph
Stentor sp. ciliates, light micrograph
Spirogyra algae, light micrograph
Lepocinclis spirogyroides, algae, light micrograph
Green alga on aquatic plant, light micrograph
Stentor protozoan, light micrograph
Green algae colony, light micrograph
Sirogonium sp. and Melosira sp., light micrograph
Diatoms and filamentous algae, light micrograph
Green algae colony attached to sand grain, light micrograph
Algae colonies attached to sand grains, light micrograph
Ciliate and Batrachospermum red algae, light micrograph
Cosmarium desmid, light micrograph
Euglena, light micrograph
Pyrocystis lunula dinoflagellates, light micrograph
Roof microbial mat, LM
Desmid and diatoms, light micrograph
Pyrocystis sp., light micrograph
Spirogyra algae
Netrium oblongum green algae, LM
Tabellaria flocculosa diatom, light micrograph
Mallomonas caudata algae, light micrograph
Glaucocystis algae, light micrograph
Lepocinclis acus protist, light micrograph
Ciliate protozoan, light micrograph
Suctorian ciliate, light micrograph
Dinoflagellate
Spirogyra reproducing, light micrograph
Euastrum desmid cell division, light micrograph
Spirogyra algae and cyanobacteria
Spirogyra sp. , algae, light micrograph
Stentor ciliate and Volvox algae colony, light micrograph
Gomphonema sp. diatoms and green alga, light micrograph
Glaucocystis algae, LM
Cyanoptyche algae, light micrograph
Woloszynskia algae, light micrograph
Phacus algae, light micrograph
Ophiocytium algae, light micrograph
Algae, light micrograph
Phycopeltis green alga, light micrograph
Protozoan on green algae, micrograph
Draparnaldia green algae, light micrograph
Euglena mutabilis algae, light micrograph
Peridinium cinctum algae, light micrograph
Pandorina sp. algae, light micrograph
Netrium digitus algae, light micrograph
Staurastrum margaritaceum algae, light micrograph
Phormidium sp. algae, light micrograph
Scenedesmus quadricauda algae, light micrograph
Pyrocystis sp. algae, light micrograph
Leonella granifera algae, light micrograph
Phaeothamnion sp. algae, light micrograph
Glaucocystis sp. algae, light micrograph
Achnanthes sp. algae, light micrograph
Groenbladia undulata algae, light micrograph
Porphyridium sordidum algae, light micrograph
Tabellaria sp. algae, light micrograph
Pyramimonas amylifera algae, light micrograph
Tribonema sp. algae, light micrograph
Mesostigma viride algae, light micrograph
Spirogloea muscicola algae, light micrograph
Xanthonema sp. algae, light micrograph
Odontella sp. 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
Spirogyra and Fragilaria diatoms, micrograph
Staurastrum sp. green algae, light micrograph
Eremosphaera viridis green algae, light micrograph
Pediastrum duplex cf. algae, light micrograph
Volvox sp., green algae, light micrograph
Euastrum humerosum desmid algae, light micrograph
Cosmarium reniforme sp. algae, light micrograph
Ciliate protozoan ingesting algae
Stellate diatom, light micrograph