Tiny Organisms in Aquatic Habitats

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Colorless Flagellates –
Amoebozoa (Part), Cryptista (Part), Discoba (Part), Alveolates (Part), Stramenopiles (Part)
Illustrated Key for

Colorless Flagellates – Flagellates without Chloroplasts

SAR-Stramenopiles – Ochrophyta

Chrysophyceae/Chromulinales (colorless part)

Anthophysa vegetans
Anthophysa
vegetans
Siderodendron manganiferum
Siderodendron
manganiferum
Spumella spec.
Spumella
spec.
Spumella rivalis
Spumella
rivalis
Anthophysa vegetans
Anthophysa
vegetans
Siderodendron manganiferum
Siderodendron
manganiferum
Spumella spec.
Spumella
spec.
Spumella rivalis
Spumella
rivalis

© Wolfgang Bettighofer 2023–2024

New items

Glaucocystis nostochinearum
Glaucocystis
nostochinearum
Pseudopediastrum subgranulatum
Pseudopediastrum
subgranulatum
Pandorina spec.
Pandorina
spec.
Lemmermannia komarekii
Lemmermannia
komarekii
Trebouxia arboricola
Trebouxia
arboricola
Eremosphaera viridis
Eremosphaera
viridis
Crucigenia fenestrata
Crucigenia
fenestrata
Goniochloris tripus
Goniochloris
tripus
Desmodesmus subspicatus
Desmodesmus
subspicatus
Microthamnion strictissimum
Microthamnion
strictissimum
Raphidocelis arcuata
Raphidocelis
arcuata
Goniochloris sculpta
Goniochloris
sculpta
Volvox aureus
Volvox
aureus
Crucigeniella lunaris
Crucigeniella
lunaris
Dimorphococcus lunatus
Dimorphococcus
lunatus
Nephrochlamys rostrata
Nephrochlamys
rostrata
Selenastrum bibraianum
Selenastrum
bibraianum
Microspora irregularis
Microspora
irregularis
Dictyosphaerium ehrenbergianum
Dictyosphaerium
ehrenbergianum
Hydrodictyon reticulatum
Hydrodictyon
reticulatum
Oocystis marssonii
Oocystis
marssonii
Stauridium tetras
Stauridium
tetras
Pseudostaurastrum enorme
Pseudostaurastrum
enorme
Oedogonium spec.
Oedogonium
spec.
Kirchneriella obesa
Kirchneriella
obesa
Oocystis parva
Oocystis
parva
Tetradesmus dimorphus
Tetradesmus
dimorphus
Pseudostaurastrum limneticum
Pseudostaurastrum
limneticum
Ankistrodesmus falcatus
Ankistrodesmus
falcatus
Eremosphaera viridis cystozygote
Eremosphaera
viridis
cystozygote
Lacunastrum gracillimum
Lacunastrum
gracillimum
Rayssiella hemisphaerica
Rayssiella
hemisphaerica
Tetradesmus lagerheimii
Tetradesmus
lagerheimii
Bumilleria sicula
Bumilleria
sicula
Botryosphaerella sudetica
Botryosphaerella
sudetica
Glochiococcus aciculiferus
Glochiococcus
aciculiferus
Monactinus simplex
Monactinus
simplex
Tetrastrum elegans
Tetrastrum
elegans
Chlorophyta cyst
Chlorophyta
cyst
Tetraedron caudatum
Tetraedron
caudatum
Chaetophoropsis pisiformis
Chaetophoropsis
pisiformis
Characium angustum
Characium
angustum
Hindakia tetrachotoma
Hindakia
tetrachotoma
Monactinus simplex var. sturmii
Monactinus
simplex
var. sturmii
Asterococcus superbus
Asterococcus
superbus
Treubaria triappendiculata
Treubaria
triappendiculata
Coleochaete spec.
Coleochaete
spec.
Chlorotetraedron incus
Chlorotetraedron
incus
Parapediastrum biradiatum
Parapediastrum
biradiatum
Cladophora spec. zoospores
Cladophora
spec.
zoospores
Chlamydomonas mutabilis
Chlamydomonas
mutabilis
Chlorella spec.
Chlorella
spec.
Coelastrum microporum var. octaedricum
Coelastrum
microporum
var. octaedricum
Lemmermannia tetrapedia
Lemmermannia
tetrapedia
Pediastrum braunii
Pediastrum
braunii
Ulothrix speciosa
Ulothrix
speciosa
Chlamydomonas reinhardtii
Chlamydomonas
reinhardtii
Chlorella vulgaris
Chlorella
vulgaris
Desmodesmus communis
Desmodesmus
communis
Micractinium pusillum
Micractinium
pusillum
Pseudopediastrum boryanum var. longicorne
Pseudopediastrum
boryanum
var. longicorne
Klebsormidium dissectum
Klebsormidium
dissectum
Haematococcus lacustris
Haematococcus
lacustris
Coccomyxa confluens
Coccomyxa
confluens
Desmodesmus opoliensis var. carinatus
Desmodesmus
opoliensis
var. carinatus
Micractinium quadrisetum
Micractinium
quadrisetum
Porphyridium purpureum
Porphyridium
purpureum
Chrysopyxis paludosa
Chrysopyxis
paludosa
Octactis speculum
Octactis
speculum
Ceramium diaphanum
Ceramium
diaphanum
Virescentia helminthosa
Virescentia
helminthosa

New items

Glaucocystis nostochinearum
Glaucocystis
nostochinearum
Pseudopediastrum subgranulatum
Pseudopediastrum
subgranulatum
Pandorina spec.
Pandorina
spec.
Lemmermannia komarekii
Lemmermannia
komarekii
Trebouxia arboricola
Trebouxia
arboricola
Eremosphaera viridis
Eremosphaera
viridis
Crucigenia fenestrata
Crucigenia
fenestrata
Goniochloris tripus
Goniochloris
tripus
Desmodesmus subspicatus
Desmodesmus
subspicatus
Microthamnion strictissimum
Microthamnion
strictissimum
Raphidocelis arcuata
Raphidocelis
arcuata
Goniochloris sculpta
Goniochloris
sculpta
Volvox aureus
Volvox
aureus
Crucigeniella lunaris
Crucigeniella
lunaris
Dimorphococcus lunatus
Dimorphococcus
lunatus
Nephrochlamys rostrata
Nephrochlamys
rostrata
Selenastrum bibraianum
Selenastrum
bibraianum
Microspora irregularis
Microspora
irregularis
Dictyosphaerium ehrenbergianum
Dictyosphaerium
ehrenbergianum
Hydrodictyon reticulatum
Hydrodictyon
reticulatum
Oocystis marssonii
Oocystis
marssonii
Stauridium tetras
Stauridium
tetras
Pseudostaurastrum enorme
Pseudostaurastrum
enorme
Oedogonium spec.
Oedogonium
spec.
Kirchneriella obesa
Kirchneriella
obesa
Oocystis parva
Oocystis
parva
Tetradesmus dimorphus
Tetradesmus
dimorphus
Pseudostaurastrum limneticum
Pseudostaurastrum
limneticum
Ankistrodesmus falcatus
Ankistrodesmus
falcatus
Eremosphaera viridis cystozygote
Eremosphaera
viridis
cystozygote
Lacunastrum gracillimum
Lacunastrum
gracillimum
Rayssiella hemisphaerica
Rayssiella
hemisphaerica
Tetradesmus lagerheimii
Tetradesmus
lagerheimii
Bumilleria sicula
Bumilleria
sicula
Botryosphaerella sudetica
Botryosphaerella
sudetica
Glochiococcus aciculiferus
Glochiococcus
aciculiferus
Monactinus simplex
Monactinus
simplex
Tetrastrum elegans
Tetrastrum
elegans
Chlorophyta cyst
Chlorophyta
cyst
Tetraedron caudatum
Tetraedron
caudatum
Chaetophoropsis pisiformis
Chaetophoropsis
pisiformis
Characium angustum
Characium
angustum
Hindakia tetrachotoma
Hindakia
tetrachotoma
Monactinus simplex var. sturmii
Monactinus
simplex
var. sturmii
Asterococcus superbus
Asterococcus
superbus
Treubaria triappendiculata
Treubaria
triappendiculata
Coleochaete spec.
Coleochaete
spec.
Chlorotetraedron incus
Chlorotetraedron
incus
Parapediastrum biradiatum
Parapediastrum
biradiatum
Cladophora spec. zoospores
Cladophora
spec.
zoospores
Chlamydomonas mutabilis
Chlamydomonas
mutabilis
Chlorella spec.
Chlorella
spec.
Coelastrum microporum var. octaedricum
Coelastrum
microporum
var. octaedricum
Lemmermannia tetrapedia
Lemmermannia
tetrapedia
Pediastrum braunii
Pediastrum
braunii
Ulothrix speciosa
Ulothrix
speciosa
Chlamydomonas reinhardtii
Chlamydomonas
reinhardtii
Chlorella vulgaris
Chlorella
vulgaris
Desmodesmus communis
Desmodesmus
communis
Micractinium pusillum
Micractinium
pusillum
Pseudopediastrum boryanum var. longicorne
Pseudopediastrum
boryanum
var. longicorne
Klebsormidium dissectum
Klebsormidium
dissectum
Haematococcus lacustris
Haematococcus
lacustris
Coccomyxa confluens
Coccomyxa
confluens
Desmodesmus opoliensis var. carinatus
Desmodesmus
opoliensis
var. carinatus
Micractinium quadrisetum
Micractinium
quadrisetum
Porphyridium purpureum
Porphyridium
purpureum
Chrysopyxis paludosa
Chrysopyxis
paludosa
Octactis speculum
Octactis
speculum
Ceramium diaphanum
Ceramium
diaphanum
Virescentia helminthosa
Virescentia
helminthosa