Extended Observation Descriptions

Amoeboid Protists
Naked Amoebae
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- Saccamoeba limax
Testate Amoebae
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- Pyxidicula operculata
Heliozoic Amoebae
Algae
- non-flagellous -
Chlorophyta
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- Eremosphaera viridis
Streptophyta (Desmidiaceae)
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OIigohymenophorea
Diatoms
- Bacillariophyta -
Coscinodiscophyceae
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- Melosira lineata
METAZOA
Cnidaria
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- Hydra viridissima
Rotifera
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- Ptygura kostei
- Ptygura longicornis

Extended Observation Description on Platycola longicollis

Platycola longicollis Kent, 1882

Taxonomic description in the Encyclopedia of Life

Link to the corresponding entry in Protisten.de

Platycola longicollis on Java Moss (Taxiphyllum barbieri) Filaments from a Freshwater Aquarium

First observation

Fig. 1: Platycola longicollis on a Java moss (Taxiphyllum barbieri) filament; image taken using a dissecting microscope. Length of the lorica appr. 100 µm.

Fig. 2: A closer look on Platycola longicollis. Objective 20x.
Scale bar indicates 50 µm.

Fig. 3: Another lorica with two cells of Platycola longicollis. Optical section through the cells. Objective 40x oil immersion.
Scale bar indicates 25 µm.

Fig. 4: The second optical section through the lorica shows the shape of the opening typical for this species. Objective 40x oil immersion.
Scale bar indicates 25 µm.

Fig. 5: Complete lorica, mounted on the Java moss stem with its long side in the direction of view. Objective 40x oil immersion.
Scale bar indicates 25 µm.

Second observation

Fig. 6: Optical section through the cell and the lorica showing the worm-shaped macronucleus traversing almost the entire cell (arrows). The brightly glowing dots are mitochondria. Objective 40x water immersion.
Scale bar indicates 50 µm.

Fig. 7: The sectional plane is placed in such a way that the striation on the cell body is partially shown (arrow). In order to be able to see this detail well, the page must be displayed at 200%. Objective 40x water immersion.
Scale bar indicates 50 µm.

Fig. 8: Representation of the complete lorica, it was exactly perpendicular to the direction of observation. Objective 40x water immersion.
Scale bar indicates 50 µm.

Fig. 9: Two optical sections through the Lorica mounted on a java moss trunk with the long side facing the viewer. The neck and opening of the bottle are detailed. Objective 40x oil immersion.
Scale bar indicates 50 µm.

© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
For permission to use of (high resolution) images please contact postmaster@protisten.de.

Protisten.de

Extended Observation Description on Platycola longicollis

Platycola longicollis on Java Moss (Taxiphyllum barbieri) Filaments from a Freshwater Aquarium

First observation

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