Ciliates – SAR-Alveolata (Ciliophora)

Observations on Heliophrya minima

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Heliophrya minima (Rieder, 1936) Foissner, 1988
Most likely ID: n.a.

Basionym: Craspedophrya rotunda f. minima Rieder, 1936

Add’l Synonyms: Heliophrya riederi Matthes, 1954

Sampling date 11/2012. Scale bars indicate 10 µm.

Two images. The specimen was grown on a slide placed in water.

First:

Top view showing nucleus and a contractile vacuole.

Second:

Optical longitudinal section through the
tentacles (arrows), which cuts into their bases (inset, arrowheads). This reveals two layers of the tentacles:
– the outer pellicle layer that forms the tentacle shaft and
– an inner ring-like structure that comes from microtubules.
For details on the structure of the tentacles of the suctoria, see Hausmann, K., Hülsmann, N., & Radek, R. (2003). Protistology. p 231.

Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!

Place name: Wetland Tegeler Fließ, Berlin (Germany)
Latitude: 52.623268 Longitude: 13.357816

Microscope Zeiss Universal, camera Canon EOS 600D. DOF images.

© 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.

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Observations on Heliophrya minima

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