Testate Amoebae –
Amoebozoa (Part), Stramenopiles (Part), Rhizaria (Part)

Observations on Trinema enchelys

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Trinema enchelys (Ehrenberg, 1838) Leidy, 1878

Most likely ID: n.a.

Basionym: Difflugia enchelys Ehrenberg, 1838

Add’l Synonyms: Trinema acinus Dujardin, 1841
                   Arcella enchelys Ehrenberg, 1844
                   Euglypha pleurostoma Carter, 1857
                   Euglypha enchelys Wallich, 1864
                   Trinema (Difflugia) encheli Crevier, 1870

Sampling date 07/2018. Scale bars indicate 10 µm.

Two images.

First:	Synoptic representation of the test (shell). Cell in vetral view.
Second:	Optical cross-section showing food vacuoles and the large nucleus in the fundus (posteriorly) with one nucleolus at position one o’clock.

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: Lake Fuhlensee near Schilksee (Kiel, Germany)
Latitude: 54.43136338 Longitude: 10.16243935

Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF images.

Sampling date 09/2018. Scale bars indicate 10 µm.

Two images.

First:	Synoptic representation of the test (shell). Cell in dorsal (top) view. DOF image.
Second:	Ventral view with aperture.

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: Bog Kaltenhof near Kiel (Schleswig-Holstein, Germany)
Latitude: 54.42102744 Longitude: 10.07686615

Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII.

Sampling date 04/2021. Scale bars indicate 25 µm.

Four images.

First:	Synoptic representation of the test (shell). Cell in vetral view.
Second to fourth:	Optical cross-sections, the last one shows the large nucleus with one nucleolus at position four o’clock.

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: Pond near Großostheim (Germany)
Latitude: 49.88482168 Longitude: 9.09980822

Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII.

Sampling date 04/2021. Scale bars indicate 25 µm.

Three images.

First:	Synoptic representation of the test (shell). Cell in lateral view.
Second to fourth:	Optical cross-sections, the last one shows the large nucleus with one nucleolus at position nine o’clock.
Fouth:	Region of the test´s neck with a large quartz grain, which is covered with silica produced by the amoeba.
Fifth:	A look inside the test shows that idiosomes are produced in reserve and stored in the cytoplasm in order to be used during cell division to build the test of the daughter cell.

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: Pond near Großostheim (Germany)
Latitude: 49.88482168 Longitude: 9.09980822

Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII.

Sampling date 06/2023. Scale bar indicates 10 µm.

Place name: Wetland Paradieswiese near Kitzbühel (Tyrol, Austria)
Latitude: 47.47375067 Longitude: 12.37624884

Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII.

© 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 Trinema enchelys

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