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Tiny Organisms in Aquatic Habitats
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Green-colored Algae (1)
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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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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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Metazoa – Obazoa (Opisthokonta)
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Porifera
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Ephydatia fluviatilis
Spongilla lacustris
Hydrozoa
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Cordylophora caspia
Craspedacusta sowerbii
Hydra viridissima
Laomedea flexuosa
Annelida
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Spirorbis
spec.
Bryozoa
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Bryozoa species
Fredericella sultana
Plumatella
spec.
Crustacea
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Bosmina longirostris
Daphnia pulex
Rotifera
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Bdelloidae
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Philodina megalotrocha
Rotaria tardigrada
Collothecaceae
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Collotheca
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Collotheca
spec.
Collotheca ornata
Stephanoceros fimbriatus
Flosculariaceae
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Floscularia ringens
Ptygura
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Ptygura
spec.
Ptygura brachiata
Ptygura kostei
Ptygura longicornis
Ptygura pilula
Hexarthra
spec.
Filinia longiseta
Ploima
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Asplanchna priodonta
Brachionus
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Brachionus
spec.
Brachionus angularis bidens
Brachionus bidentatus
Keratella
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Keratella
spec.
Keratella cochlearis
Notommata allantois
Polyarthra
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Polyarthra
spec.
Polyarthra remata
Synchaeta
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Synchaeta
spec.
Synchaeta pectinata
Echinodermata
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Asterozoa species
Chordata
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Teleostei species
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Porifera
Ephydatia fluviatilis
Spongilla lacustris
Hydrozoa
Cordylophora caspia
Craspedacusta sowerbii
Hydra viridissima
Laomedea flexuosa
Annelida
Spirorbis
spec.
Bryozoa
Bryozoa species
Fredericella sultana
Plumatella
spec.
Crustacea
Bosmina longirostris
Daphnia pulex
Rotifera
Bdelloidae
Philodina megalotrocha
Rotaria tardigrada
Collothecaceae
Collotheca
Collotheca
spec.
Collotheca ornata
Stephanoceros fimbriatus
Flosculariaceae
Floscularia ringens
Ptygura
Ptygura
spec.
Ptygura brachiata
Ptygura kostei
Ptygura longicornis
Ptygura pilula
Hexarthra
spec.
Filinia longiseta
Ploima
Asplanchna priodonta
Brachionus
Brachionus
spec.
Brachionus angularis bidens
Brachionus bidentatus
Keratella
Keratella
spec.
Keratella cochlearis
Notommata allantois
Polyarthra
Polyarthra
spec.
Polyarthra remata
Synchaeta
Synchaeta
spec.
Synchaeta pectinata
Echinodermata
Asterozoa species
Chordata
Teleostei species
Illustrated Key for
Metazoa – Obazoa (Opisthokonta)
Porifera
Ephydatia
fluviatilis
Spongilla
lacustris
Ephydatia
fluviatilis
Spongilla
lacustris
© Wolfgang Bettighofer 2023–2024
New items
Glaucocystis
nostochinearum
Pseudopediastrum
subgranulatum
Pandorina
spec.
Lemmermannia
komarekii
Trebouxia
arboricola
Eremosphaera
viridis
Crucigenia
fenestrata
Goniochloris
tripus
Desmodesmus
subspicatus
Microthamnion
strictissimum
Raphidocelis
arcuata
Goniochloris
sculpta
Volvox
aureus
Crucigeniella
lunaris
Dimorphococcus
lunatus
Nephrochlamys
rostrata
Selenastrum
bibraianum
Microspora
irregularis
Dictyosphaerium
ehrenbergianum
Hydrodictyon
reticulatum
Oocystis
marssonii
Stauridium
tetras
Pseudostaurastrum
enorme
Oedogonium
spec.
Kirchneriella
obesa
Oocystis
parva
Tetradesmus
dimorphus
Pseudostaurastrum
limneticum
Ankistrodesmus
falcatus
Eremosphaera
viridis
cystozygote
Lacunastrum
gracillimum
Rayssiella
hemisphaerica
Tetradesmus
lagerheimii
Bumilleria
sicula
Botryosphaerella
sudetica
Glochiococcus
aciculiferus
Monactinus
simplex
Tetrastrum
elegans
Chlorophyta
cyst
Tetraedron
caudatum
Chaetophoropsis
pisiformis
Characium
angustum
Hindakia
tetrachotoma
Monactinus
simplex
var.
sturmii
Asterococcus
superbus
Treubaria
triappendiculata
Coleochaete
spec.
Chlorotetraedron
incus
Parapediastrum
biradiatum
Cladophora
spec.
zoospores
Chlamydomonas
mutabilis
Chlorella
spec.
Coelastrum
microporum
var.
octaedricum
Lemmermannia
tetrapedia
Pediastrum
braunii
Ulothrix
speciosa
Chlamydomonas
reinhardtii
Chlorella
vulgaris
Desmodesmus
communis
Micractinium
pusillum
Pseudopediastrum
boryanum
var.
longicorne
Klebsormidium
dissectum
Haematococcus
lacustris
Coccomyxa
confluens
Desmodesmus
opoliensis
var.
carinatus
Micractinium
quadrisetum
Porphyridium
purpureum
Chrysopyxis
paludosa
Octactis
speculum
Ceramium
diaphanum
Virescentia
helminthosa
New items
Glaucocystis
nostochinearum
Pseudopediastrum
subgranulatum
Pandorina
spec.
Lemmermannia
komarekii
Trebouxia
arboricola
Eremosphaera
viridis
Crucigenia
fenestrata
Goniochloris
tripus
Desmodesmus
subspicatus
Microthamnion
strictissimum
Raphidocelis
arcuata
Goniochloris
sculpta
Volvox
aureus
Crucigeniella
lunaris
Dimorphococcus
lunatus
Nephrochlamys
rostrata
Selenastrum
bibraianum
Microspora
irregularis
Dictyosphaerium
ehrenbergianum
Hydrodictyon
reticulatum
Oocystis
marssonii
Stauridium
tetras
Pseudostaurastrum
enorme
Oedogonium
spec.
Kirchneriella
obesa
Oocystis
parva
Tetradesmus
dimorphus
Pseudostaurastrum
limneticum
Ankistrodesmus
falcatus
Eremosphaera
viridis
cystozygote
Lacunastrum
gracillimum
Rayssiella
hemisphaerica
Tetradesmus
lagerheimii
Bumilleria
sicula
Botryosphaerella
sudetica
Glochiococcus
aciculiferus
Monactinus
simplex
Tetrastrum
elegans
Chlorophyta
cyst
Tetraedron
caudatum
Chaetophoropsis
pisiformis
Characium
angustum
Hindakia
tetrachotoma
Monactinus
simplex
var.
sturmii
Asterococcus
superbus
Treubaria
triappendiculata
Coleochaete
spec.
Chlorotetraedron
incus
Parapediastrum
biradiatum
Cladophora
spec.
zoospores
Chlamydomonas
mutabilis
Chlorella
spec.
Coelastrum
microporum
var.
octaedricum
Lemmermannia
tetrapedia
Pediastrum
braunii
Ulothrix
speciosa
Chlamydomonas
reinhardtii
Chlorella
vulgaris
Desmodesmus
communis
Micractinium
pusillum
Pseudopediastrum
boryanum
var.
longicorne
Klebsormidium
dissectum
Haematococcus
lacustris
Coccomyxa
confluens
Desmodesmus
opoliensis
var.
carinatus
Micractinium
quadrisetum
Porphyridium
purpureum
Chrysopyxis
paludosa
Octactis
speculum
Ceramium
diaphanum
Virescentia
helminthosa