Diatom, light micrograph
Diatoms, light micrograph
Green alga, light micrograph
Closterium sp. desmid, light micrograph
Rhodomonas sp. algae, light micrograph
Pyrocystis sp., light micrograph
Algae and ciliate on aquatic plant, light micrograph
Meridion circulare diatoms, LM
Glaucocystis algae, light micrograph
Volvox sp. green algae, light micrograph
Ditylium brightwellii marine diatom, LM
Green algae on aquatic plant stalk, light micrograph
Algae settled on Myriophyllum sp., light micrograph
Woloszynskia algae, light micrograph
Lepocinclis acus protist, light micrograph
Pyrocystis sp. algae, light micrograph
Leonella granifera algae, light micrograph
Leonella granifera alga, light micrograph
Pyrocystis lunula algae, light micrograph
Fossil diatom, light micrograph
Lepocinclis spirogyroides, algae, light micrograph
Tabellaria flocculosa diatom, light micrograph
Cladophora green algae, light micrograph
Green algae, light micrograph
Phacus sp. flagellate, LM
Bellerochea malleus diatoms, LM
Tabellaria fenestrata, light micrograph
Desmid and diatoms, light micrograph
Roof microbial mat, LM
Tetraselmis chui algae, light micrograph
Microalgae, light micrograph
Thalassiosira punctigera, 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
Desmids and spirogyra, light micrograph
Difflugia amoeba and sp. diatoms, light micrograph
Green alga on an aquatic plant, light micrograph
Mallomonas caudata algae, light micrograph
Mediopyxis helysia diatoms, LM
Ciliate protozoan, light micrograph
Paramecium bursaria protozoan, light micr
Synedra diatom group, LM
Diatoma diatom, LM
Stephanodiscus diatom, LM
Coscinodiscus sp. diatom, LM
Pyrocystis lunula dinoflagellates, light micrograph
Spirogyra algae
Silicoflagellate, light micrograph
Chlorella sp., green algae, light micrograph
Ophiocytium sp., green algae, light micrograph
Porphyridium sp. red algae, light micrograph
Microspora sp. algae, light micrograph
Chlamydomonas suboogama green algae, light micrograph
Chlorogonium sp. green algae, light micrograph
Kirchneriella sp. green algae, light micrograph
Pyrocystis lunula alga, light micrograph
Cyanoptyche algae, light micrograph
Euglena alga, light micrograph
Phacus alga, light micrograph
Phacus algae, light micrograph
Trachelomonas alga, light micrograph
Ophiocytium algae, light micrograph
Spirulina cyanobacteria, 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
Phaeothamnion sp. algae, light micrograph
Glaucocystis sp. alga, light micrograph
Glaucocystis sp. algae, light micrograph
Achnanthes sp. algae, light micrograph
Groenbladia undulata algae, light micrograph
Ophiocytium sp. alga, light micrograph
Porphyridium sordidum algae, light micrograph
Closterium moniliferum alga, light micrograph
Tabellaria sp. algae, light micrograph
Pyramimonas amylifera algae, light micrograph
Lepocinclis ovum alga, 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 alga, light micrograph
Cryptomonas lundii algae, light micrograph
Closterium moniliferum algae, light micrograph
Tetmemorus granulatus algae, light micrograph
Trachelomonas volvocinopsis alga, light micrograph
Trachelomonas volvocinopsis algae, light micrograph
Euglena mutabilis alga, light micrograph
Phacus ranula algae, light micrograph
Phacus ranula alga, light micrograph
Phacus smulkowskianus algae, light micrograph
Haplotaenium rectum algae, light micrograph
Pleurotaenium truncatum algae, light micrograph
Monomorphina sp. (Euglenozoa), light micrograph
Phormidium sp. cyanobacteria, light micrograph
Penium green alga, light micrograph
Euastrum humerosum desmid algae, light micrograph
Staurastrum sp. green algae, light micrograph
Pediastrum duplex cf. algae, light micrograph
Penium silvae nigrae green alga, light micrograph
Mougeotia sp. green alga, light micrograph
Cyanoptyche sp. green algae, light micrograph
Spirogyra algae, light micrograph
Green hydra, light micrograph
Haematococcus alga, light micrograph
Haematococcus algae, light micrograph
Pleurosigma sp diatoms, light micrograph
Encyonema freshwater diatoms, light micrograph
Eucampia marine diatoms, light micrograph
Euastrum desmid, light micrograph
Ceratium cornutum algae, light micrograph