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Tiny Organisms in Aquatic Habitats
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and Chlorobi
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Golden-brownish-
colored Algae
Green-colored
Algae (1)
Green-colored
Algae (2):
Desmids sensu lato
Reddish-colored
Algae
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Amoeboid Protists
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Naked Amoebae
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Heliozoic Amoebae
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Flagellate Organisms
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Colored Flagellates
Colorless Flagellates
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Metazoa
Organisms grouped by Taxonomy
Extended Observation Descriptions
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Amoeboid Protists
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Naked Amoebae
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Saccamoeba limax
Hunting for
Pyxidicula
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Testate Amoebae
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Pyxidicula
spec. as a Neuston Organism
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Heliozoic Amoebae
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Defecation in
Nuclearia
spec.
Nuclearia delicatula
, a Multinucleated Organism
Cell Division in
Nuclearia simplex
Raphidocystis pallida
as Neuston Member
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Chlorophytes
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Chlorella
spec. as Zoochlorellae
Cystozygotes of
Eremosphaera viridis
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Streptophytes (Desmids)
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Mitochondria in
Micrasterias
Dictyosomes in
Micrasterias
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Ciliates
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Fine Structure of
Coleps hirtus
Carapace
Platycola longicollis
on Java Moss
Binary Fission in
Vorticella
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Diatoms
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Sexual Reproduction of
Melosira inflexa
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Cnidaria
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Fine Structure of
Hydra viridissima
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Rotifers
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Ptygura kostei
on Java Moss
Ptygura longicornis
on Java Moss
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Table of Contents
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Home
Bacteria
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Proteobacteria
Cyanobacteria and Chlorobi
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Algae without Flagella
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Diatoms
Other Golden-brownish-colored Algae
Green-colored Algae (1)
Green-colored Algae (2): Desmids sensu lato
Reddish-colored Algae
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Amoeboid Protists
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Naked Amoebae
Testate Amoebae
Heliozoic Amoebae
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Ciliates
Diatoms
Flagellate Organisms
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Colored Flagellates
Colorless Flagellates
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Metazoa
Organisms grouped by Taxonomy
Extended Observation Descriptions
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Amoeboid Protists
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Naked Amoebae
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Saccamoeba limax
Hunting for
Pyxidicula
Close
Testate Amoebae
Close
Pyxidicula
spec. as a Neuston Organism
Close
Heliozoic Amoebae
Close
Defecation in
Nuclearia
spec.
Nuclearia delicatula
, a Multinucleated Organism
Cell Division in
Nuclearia simplex
Raphidocystis pallida
as Neuston Member
Close
Close
Chlorophytes
Close
Chlorella
spec. as Zoochlorellae
Cystozygotes of
Eremosphaera viridis
Close
Streptophytes (Desmids)
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Mitochondria in
Micrasterias
Dictyosomes in
Micrasterias
Close
Ciliates
Close
Fine Structure of
Coleps hirtus
Carapace
Platycola longicollis
on Java Moss
Binary Fission in
Vorticella
Close
Diatoms
Close
Sexual Reproduction of
Melosira inflexa
Close
Cnidaria
Close
Fine Structure of
Hydra viridissima
Close
Rotifers
Close
Ptygura kostei
on Java Moss
Ptygura longicornis
on Java Moss
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Usage Hints
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Naked Amoebae –
Amoebozoa (Part), Stramenopiles (Part), Rhizaria (Part)
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Amoebozoa
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Discosea
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Flabellinia
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Dermamoebida
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Mayorella
spec.
Mayorella penardi
Thecamoebida
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Thecamoeba similis
Thecamoeba striata
Vannellidae
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Platyamoeba
spec.
Vannella simplex
Himantismenida
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Cochliopodiidae
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Cochliopodium
spec.
Cochliopodium bilimbosum
Cochliopodium vestitum
Evosea
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Archamoebae
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Mastigamoeba aspera
Pelomyxa palustris
Variosea
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Enteromyxa paludosa
Tubulinea
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Elardia/Euamoebida
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Amoebidae
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Amoeba proteus
Hartmannellidae
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Saccamoeba
spec.
Saccamoeba limax
Elardia/Leptomyxida
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Rhizamoeba clavarioides
SAR-Stramenopiles
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Sinurophyceae/Rhizochloridales
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Chlamydomyxa labyrinthuloides
SAR-Rhizaria
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Cercozoa/Granofilosea
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Hedriocystis pellucida
Heliomorpha mutans
Microgromia socialis
Endomyxa/Vampyrellida
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Leptophrys vorax
Placopus rubicundus
Vampyrella lateritia
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All Items
Amoebozoa
Discosea
Flabellinia
Dermamoebida
Mayorella
spec.
Mayorella penardi
Thecamoebida
Thecamoeba similis
Thecamoeba striata
Vannellidae
Platyamoeba
spec.
Vannella simplex
Himantismenida
Cochliopodiidae
Cochliopodium
spec.
Cochliopodium bilimbosum
Cochliopodium vestitum
Evosea
Archamoebae
Mastigamoeba aspera
Pelomyxa palustris
Variosea
Enteromyxa paludosa
Tubulinea
Elardia/Euamoebida
Amoebidae
Amoeba proteus
Hartmannellidae
Saccamoeba
spec.
Saccamoeba limax
Elardia/Leptomyxida
Rhizamoeba clavarioides
SAR-Stramenopiles
Sinurophyceae/Rhizochloridales
Chlamydomyxa labyrinthuloides
SAR-Rhizaria
Cercozoa/Granofilosea
Hedriocystis pellucida
Heliomorpha mutans
Microgromia socialis
Endomyxa/Vampyrellida
Leptophrys vorax
Placopus rubicundus
Vampyrella lateritia
Illustrated Key for
Naked Amoebae – Amoebozoa (Evosea)
Archamoebae
Mastigamoeba
aspera
Pelomyxa
palustris
Mastigamoeba
aspera
Pelomyxa
palustris
© Wolfgang Bettighofer 2023–2024
New items
Cylindrocystis
crassa
Netrium
digitus
var.
lamellosum
Netrium
digitus
var.
latum
Netrium
oblongum
Planotaenium
interruptum
Spirogyra
spec.
Zygnema
spec.
Gonatozygon
kinahanii
Mougeotia
spec.
Penium
polymorphum
var.
polymorphum
Mougeotia
spec.
Penium
spirostriolatum
Netrium
digitus
Cylindrocystis
brebissonii
Micrasterias
rotata
Desmidium
swartzii
Staurastrum
capitulum
Xanthidium
antilopaeum
Euastrum
neosinuosum
Tetmemorus
brebissonii
Cosmarium
pachydermum
Micrasterias
thomasiana
var.
notata
Euastrum
ansatum
Staurastrum
forficulatum
var.
verrucosum
Cosmarium
neodepressum
Xanthidium
armatum
Euastrum
oblongum
Cosmarium
porteanum
Micrasterias
truncata
Euastrum
rhomboidale
Staurastrum
furcatum
Xanthidium
uncinatum
Hyalotheca
dissiliens
Cosmarium
pseudonitidulum
var.
validum
Micrasterias
truncata
var.
bahusiensis
Euastrum
bidentatum
Staurastrum
hirsutum
Actinotaenium
cucurbitinum
Hyalotheca
minor
Cosmarium
pyramidatum
Micrasterias
truncata
var.
quadrata
Euastrum
binale
var.
gutwinskii
Staurastrum
inconspicuum
Bambusina
borreri
Micrasterias
americana
Cosmarium
quadratulum
Pleurotaenium
trabecula
var.
elongatum
Euastrum
coeseli
Staurastrum
margaritacaeum
Cosmarium
bicuneatum
Micrasterias
apiculata
Cosmarium
simplicius
Pleurotaenium
crenulatum
Euastrum
crassum
Staurastrum
simonyi
var.
sparsiaculeatum
Cosmarium
caelatum
Micrasterias
crux-melitensis
Cosmarium
sparsepunctatum
Pleurotaenium
ehrenbergii
Euastrum
didelta
Staurastrum
spongiosum
var.
perbifidum
Cosmarium
connatum
Micrasterias
denticulata
Cosmarium
subarctoum
Pleurotaenium
trabecula
var.
trabecula
Euastrum
humerosum
Staurastrum
teliferum
Staurodesmus
dejectus
Pandorina
spec.
Cosmarium
conspersum
Lemmermannia
komarekii
Micrasterias
papillifera
Trebouxia
arboricola
Cosmarium
venustum
var.
excavatum
Eremosphaera
viridis
Spondylosium
pulchellum
Goniochloris
tripus
Tetmemorus
granulatus
var.
granulatus
Desmodesmus
subspicatus
Euastrum
humerosum
var.
affine
Glaucocystis
nostochinearum
Staurodesmus
convergens
Raphidocelis
arcuata
Cosmarium
integrum
Volvox
aureus
Micrasterias
rotata
Crucigeniella
lunaris
Desmidium
grevillei
Dimorphococcus
lunatus
Staurastrum
alternans
Microspora
irregularis
Tetmemorus
laevis
var.
laevis
Dictyosphaerium
ehrenbergianum
Euastrum
luetkemuelleri
var.
carniolicum
Hydrodictyon
reticulatum
Stauridium
tetras
Pseudostaurastrum
limneticum
Eremosphaera
viridis
cystozygote
Hindakia
tetrachotoma
Monactinus
simplex
var.
sturmii
Parapediastrum
biradiatum
Coelastrum
microporum
var.
octaedricum
Pediastrum
braunii
Chlamydomonas
reinhardtii
Micractinium
pusillum
Haematococcus
lacustris
Octactis
speculum
Ceramium
diaphanum
New items
Cylindrocystis
crassa
Netrium
digitus
var.
lamellosum
Netrium
digitus
var.
latum
Netrium
oblongum
Planotaenium
interruptum
Spirogyra
spec.
Zygnema
spec.
Gonatozygon
kinahanii
Mougeotia
spec.
Penium
polymorphum
var.
polymorphum
Mougeotia
spec.
Penium
spirostriolatum
Netrium
digitus
Cylindrocystis
brebissonii
Micrasterias
rotata
Desmidium
swartzii
Staurastrum
capitulum
Xanthidium
antilopaeum
Euastrum
neosinuosum
Tetmemorus
brebissonii
Cosmarium
pachydermum
Micrasterias
thomasiana
var.
notata
Euastrum
ansatum
Staurastrum
forficulatum
var.
verrucosum
Cosmarium
neodepressum
Xanthidium
armatum
Euastrum
oblongum
Cosmarium
porteanum
Micrasterias
truncata
Euastrum
rhomboidale
Staurastrum
furcatum
Xanthidium
uncinatum
Hyalotheca
dissiliens
Cosmarium
pseudonitidulum
var.
validum
Micrasterias
truncata
var.
bahusiensis
Euastrum
bidentatum
Staurastrum
hirsutum
Actinotaenium
cucurbitinum
Hyalotheca
minor
Cosmarium
pyramidatum
Micrasterias
truncata
var.
quadrata
Euastrum
binale
var.
gutwinskii
Staurastrum
inconspicuum
Bambusina
borreri
Micrasterias
americana
Cosmarium
quadratulum
Pleurotaenium
trabecula
var.
elongatum
Euastrum
coeseli
Staurastrum
margaritacaeum
Cosmarium
bicuneatum
Micrasterias
apiculata
Cosmarium
simplicius
Pleurotaenium
crenulatum
Euastrum
crassum
Staurastrum
simonyi
var.
sparsiaculeatum
Cosmarium
caelatum
Micrasterias
crux-melitensis
Cosmarium
sparsepunctatum
Pleurotaenium
ehrenbergii
Euastrum
didelta
Staurastrum
spongiosum
var.
perbifidum
Cosmarium
connatum
Micrasterias
denticulata
Cosmarium
subarctoum
Pleurotaenium
trabecula
var.
trabecula
Euastrum
humerosum
Staurastrum
teliferum
Staurodesmus
dejectus
Pandorina
spec.
Cosmarium
conspersum
Lemmermannia
komarekii
Micrasterias
papillifera
Trebouxia
arboricola
Cosmarium
venustum
var.
excavatum
Eremosphaera
viridis
Spondylosium
pulchellum
Goniochloris
tripus
Tetmemorus
granulatus
var.
granulatus
Desmodesmus
subspicatus
Euastrum
humerosum
var.
affine
Glaucocystis
nostochinearum
Staurodesmus
convergens
Raphidocelis
arcuata
Cosmarium
integrum
Volvox
aureus
Micrasterias
rotata
Crucigeniella
lunaris
Desmidium
grevillei
Dimorphococcus
lunatus
Staurastrum
alternans
Microspora
irregularis
Tetmemorus
laevis
var.
laevis
Dictyosphaerium
ehrenbergianum
Euastrum
luetkemuelleri
var.
carniolicum
Hydrodictyon
reticulatum
Stauridium
tetras
Pseudostaurastrum
limneticum
Eremosphaera
viridis
cystozygote
Hindakia
tetrachotoma
Monactinus
simplex
var.
sturmii
Parapediastrum
biradiatum
Coelastrum
microporum
var.
octaedricum
Pediastrum
braunii
Chlamydomonas
reinhardtii
Micractinium
pusillum
Haematococcus
lacustris
Octactis
speculum
Ceramium
diaphanum