Skip to content
Tiny Organisms in Aquatic Habitats
Protisten.de
Menu
Home
Bacteria
Close
Proteobacteria
Cyanobacteria and Chlorobi
Close
Amoeboid Protists
Close
Naked Amoebae
Testate Amoebae
Heliozoic Amoebae
Close
Flagellate Organisms
Close
Colored Flagellates
Colorless Flagellates
Close
Diatoms
Algae without Flagella
Close
Diatoms
Golden-brownish-colored Algae
Green-colored Algae (1)
Reddish-colored Algae
Close
Ciliates
Metazoa
Observation descriptions
Close
Amoeboid Protists
Close
Naked Amoebae
Close
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
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
Close
Close
Usage Hints
Search
Search
Metazoa – Obazoa (Opisthokonta)
All Items
Porifera
Close
Ephydatia fluviatilis
Spongilla lacustris
Hydrozoa
Close
Cordylophora caspia
Craspedacusta sowerbii
Hydra viridissima
Laomedea flexuosa
Annelida
Close
Spirorbis
spec.
Bryozoa
Close
Bryozoa species
Fredericella sultana
Plumatella
spec.
Crustacea
Close
Bosmina longirostris
Daphnia pulex
Rotifera
Close
Bdelloidae
Close
Philodina megalotrocha
Rotaria tardigrada
Collothecaceae
Close
Collotheca
Close
Collotheca
spec.
Collotheca ornata
Stephanoceros fimbriatus
Flosculariaceae
Close
Floscularia ringens
Ptygura
Close
Ptygura
spec.
Ptygura brachiata
Ptygura kostei
Ptygura longicornis
Ptygura pilula
Hexarthra
spec.
Filinia longiseta
Ploima
Close
Asplanchna priodonta
Brachionus
Close
Brachionus
spec.
Brachionus angularis bidens
Brachionus bidentatus
Keratella
Close
Keratella
spec.
Keratella cochlearis
Notommata allantois
Polyarthra
Close
Polyarthra
spec.
Polyarthra remata
Synchaeta
Close
Synchaeta
spec.
Synchaeta pectinata
Echinodermata
Close
Asterozoa species
Chordata
Close
Teleostei species
Menu
All Items
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, Protostomia)
Rotifera
Philodina
megalotrocha
Rotaria
tardigrada
Collotheca
spec.
Collotheca
ornata
Stephanoceros
fimbriatus
Floscularia
ringens
Ptygura
spec.
Ptygura
brachiata
Ptygura
kostei
Ptygura
kostei
Ptygura
longicornis
Ptygura
pilula
Ptygura
pilula
Hexarthra
spec.
Filinia
longiseta
Filinia
longiseta
Asplanchna
priodonta
Brachionus
spec.
Brachionus
angularis
bidens
Brachionus
bidentatus
Keratella
spec.
Keratella
cochlearis
Notommata
allantois
Polyarthra
spec.
Polyarthra
remata
Synchaeta
spec.
Synchaeta
pectinata
Philodina
megalotrocha
Rotaria
tardigrada
Collotheca
spec.
Collotheca
ornata
Stephanoceros
fimbriatus
Floscularia
ringens
Ptygura
spec.
Ptygura
brachiata
Ptygura
kostei
Ptygura
kostei
Ptygura
longicornis
Ptygura
pilula
Ptygura
pilula
Hexarthra
spec.
Filinia
longiseta
Filinia
longiseta
Asplanchna
priodonta
Brachionus
spec.
Brachionus
angularis
bidens
Brachionus
bidentatus
Keratella
spec.
Keratella
cochlearis
Notommata
allantois
Polyarthra
spec.
Polyarthra
remata
Synchaeta
spec.
Synchaeta
pectinata
© 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