Testate Lobose Amoebae

Microchlamys (mike-row-clam-iss) is a testate amoeba, but one with a flexible shell or lorica. Optical section through the cell. Two nuclei with dark nucleoli and the light coloured contractile vacuole are evident. Phase contrast.

The lateral view shows an elliptical profile whereas the shape is circular in topview. Pseudopods appear as tapered protuberances of protoplasma. The aperture is almost as wide as the shell diameter, the rim is visible. Dimensions of specimen: 15µm x 20 µm  Sample from a pond on the island of Hiddensee (Baltic Sea, Germany). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.

Portrait of Netzelia tuberculata (Wallich,1864) test. The test or shell is composed of quartz particles arranged in small knob-like aggregates on its surface. The approximately circular shell aperture has a narrow collar of quartz particles. Pseudopodia (not seen in this image) are lobose. Collected from freshwater irrigation canal near Boise, Idaho in November 2003. Brightfield illumination.

The specimen was gathered in the pond Birkensee near Rödelsee (Lower Franconia, Germany). Copyright Dr. Rainer Meisch, Würzburg, Germany.Images were taken using Zeiss Axioplan with Canon DSLR Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond Birkensee near Rödelsee (Lower Franconia, Germany) Latitude: 49,71819841 Longitude: 10,27807474 Probe aus dem Birkensee bei Rödelsee (Unterfranken). Datum der Aufsammlung: 7/2018. Copyright Dr. Rainer Meisch, Würzburg. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus Canon DSLR. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

This picture shows details of the Nebela test. In order to build the test, Nebela collects silicious scales from the stocks of the ingested smaller testate amoebae. The picture was developed using 14 high resolution DIC frames with manual stacking technique. The scale bar indicates 50 µm. Sample from spagnum pond situated in the northern alpine region of Austria near Salzburg. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Bogs near Salzburg (Austria) Latitude: 48,068516 Longitude: 12,954134 Dieses Bild zeigt Details der Nebela-Schale. Um die Schale aufzubauen, sammelt Nebela Kieselschuppen aus den Beständen der aufgenommenen kleineren Schalenamöben. Tiefenschärfe durch Multiebenenabbildung aus 14 Bildebenen, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm. Probe aus einem Moor in den nördlichen Kalkalpen von Österreich in der Nähe von Salzburg. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Lesquereusia modesta with details of the test and an overview (inset) depicting the shape with the unsymmetrical neck. Test is composed of a mixture of siliceous rods and plates and quartz grains. Scale bar indicates 100µm. Digital drawing using 17 frames generating depth of focus, stacked manually. Sample from a freshwater pond on the island of Hiddensee (Baltic Sea, Germany). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond Suploch, Hiddensee (Germany) Latitude: 54,538638 Longitude: 13,097802 Lesquereusia modesta mit Details der Schale und eine Übersicht (kleines Einsatzbild), welche den Schalenumriss mit dem unsymmetrischen Hals darstellt. Die Schale ist aus einer Mischung von kieselsäurehaltigen Stäbchen und Plättchen und Quarzkörnern zusammengesetzt. Tiefenschärfe durch Multiebenenabbildung aus 17 Bildebenen, manuell gestapelt. Der Messbalken markiert eine Länge von 100 µm. Probe aus einem kleinen Süßwasserteich auf der Insel Hiddensee, welcher eine faszinierende Vielfalt von nackten und beschalten Amöben beherbergt. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Melgar de Tera, Castille and Leon, Spain

Canada Del Hoyo, Castille la Mancha, Spain

Ribadelago de Franco, Castille and Leon, Spain

Neila, Castille and Leon, Spain

Lumbreras, La Rioja, Spain

Ribadelago de Franco, Castille and Leon, Spain

Ribadelago, Castille and Leon, Spain

Ajamil, La Rioja, Spain

Ribadelago de Franco, Castille and Leon, Spain

Villoslada de Cameros, La Rioja, Spain

This testate amoeba was collected at Hawley Bog, Charlemont, MA, USA (N 42.583, W -72.883) on April 7, 2010. This image was taken by Dan Lahr working with Dr. Laura Katz at Smith College.

Riopar, Castille la Mancha, Spain

Talamanca, Catalunya, Espaa

Villoslada de Cameros, La Rioja, Spain

Galende, Castille and Leon, Spain

This testate amoeba was collected at Hawley Bog, Charlemont, MA, USA (N 42.583, W -72.883) Fall, 2012. This image was taken by Angela Oliverio working with Dr. Laura Katz at Smith College.