Hartmannellidae

Phase contrast micrograph of cells from ATCC strain 50913, Nolandella sp. Images taken in April 2006. ATCC data on this organism.

Saccamoeba (sack-a-me-ba), a monopodial naked free-living amoeba. With a lobose pseudopodium, usually progressing as a single pseudopodium (i.e. is monopodial). Hyaline cap absent or not well developed. Small uroid. These cells also with light-coloured contractile vacuoles and with nuclei with nucleoli. Phase contrast.

Saccamoeba (sack-a-me-ba), a monopodial naked free-living amoeba. With a lobose pseudopodium, usually progressing as a single pseudopodium (i.e. is monopodial). Hyaline cap absent or not well developed. Small uroid. This cell also with a light-coloured contractile vacuole and nucleus with nucleolus. Phase contrast.

Saccamoeba (sack-a-me-ba), a monopodial naked free-living amoeba. With a lobose pseudopodium, usually progressing as a single pseudopodium (i.e. is monopodial). Hyaline cap absent or not well developed. Small uroid. This cell also with a light-coloured contractile vacuole and nucleus with nucleolus. Phase contrast.

The identity of this amoeba is uncertain. It is a amoeba that forms lobose pseudopodia and has a large nucleus. This cell is squashed and has taken on this star-like form. Phase contrast microscopy.

Detail of Polychaos dubium, a large polypodial naked amoeba. P. dubium is the type species. Palmate form. Pseudopodia lack the longitudinal ridges seen in Amoeba species. The posterior is composed of a collection of fused remnant pseudopodia. May become monopodial during rapid locomotion. The granular nucleus is spherical to ovoid in shape. The cytoplasm contains ingested algae and numerous refractile crystals. This image shows a large bipyramidal cytoplasmic crystal, probably composed of urea. From freshwater pond near Boise, Idaho. DIC optics.

Portrait of Polychaos dubium, a large polypodial naked amoeba. P. dubium is the type species. Palmate form. Pseudopodia lack the longitudinal ridges seen in species of Amoeba. The posterior (left side of image) is composed of a collection of fused remnant pseudopodia. May become monopodial during rapid locomotion. The granular nucleus is spherical to ovoid in shape. A large contractile vacuole is visible. The cytoplasm contains ingested algae and numerous refractile crystals. From freshwater pond near Boise, Idaho. DIC optics.

Portrait of the polypoidal amoeba. The single nucleus with it’s distinct nucleolar material in narrow peripheral lobes well visible in the central part of the cell.

The nucleus of Polychaos fasciculatum with it's nucleolar material in typically peripheral located narrow lobes

Sampling date 06/2007. Scale bar indicates 10 µm.Saccamoeba limax with its villous uroid. Two pseudopods protrude only during change of direction. During ordinary movement on substrate the appearance is monopodial. The inserts show states of defecation.Place name: Bog Dosenmoor near Neumuenster (Schleswig-Holstein, Germany) Latitude: 54.136219     Longitude: 10.026433Microscope Zeiss Universal, camera Olympus C7070WZ.© 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 10 µm (1, 6, 7), 25 µm (2–5).7  stages of phagocytosis of  Pyxidicula operculata. Last image: Phagocytosis of Pyxidicula has completed. On the right the typical finely papillate bulbous uroid which recalls the family Amoebidae. Two empty tests of Pyxidicula had been discharged and stayed connected through fine plasma ribbons to the uroid.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 Suploch, Hiddensee (Germany) Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ.© 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 25 µm.Motion study, 2  stages. First:Saccamoeba limax in „classical“ shape as it can be found in literature. From the left to the right we see the cuboidal crystals (typical for this species), several food vacuoles, the vesicular nucleus with its huge central nucleolus, the contractile vacuole and another food vacuole. On the right the likewise typical finely papillate bulbous uroid which recalls the family Amoebidae.Second:Saccamoeba limax changes its direction of locomotion. During this period the classical, monopodial shape is lost.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 Suploch, Hiddensee (Germany)Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ. 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 10 µm (1, 6, 7), 25 µm (2–5).7  stages of phagocytosis of  Pyxidicula operculata. Last image: Phagocytosis of Pyxidicula has completed. On the right the typical finely papillate bulbous uroid which recalls the family Amoebidae. Two empty tests of Pyxidicula had been discharged and stayed connected through fine plasma ribbons to the uroid.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 Suploch, Hiddensee (Germany) Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ.© 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 25 µm.Motion study, 2  stages. First:Saccamoeba limax in „classical“ shape as it can be found in literature. From the left to the right we see the cuboidal crystals (typical for this species), several food vacuoles, the vesicular nucleus with its huge central nucleolus, the contractile vacuole and another food vacuole. On the right the likewise typical finely papillate bulbous uroid which recalls the family Amoebidae.Second:Saccamoeba limax changes its direction of locomotion. During this period the classical, monopodial shape is lost.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 Suploch, Hiddensee (Germany)Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ. 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 25 µm.Motion study, 3  stages.Saccamoeba limax in „classical“ shape as it can be found in literature. There are several cuboidal crystals (typical for this species), food vacuoles and the vesicular nucleus with its huge central nucleolus. On the left the likewise typical finely papillate bulbous uroid which recalls the family Amoebidae.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: Tropical freshwater aquarium Latitude: 54.3018013     Longitude: 10.07120132Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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.For further information about the image, please click here: Link to protisten.de page

Sampling date 10/2008. Scale bar indicates 10 µm.Floating form of Saccamoeba limax with a characteristic villous collar and the cuboidal crystals. The vesicular nucleus with its huge central nucleolus lies in the middle of the cell. Left of Saccamoeba we can see the prey: Pyxidicula spec., a testate amoeba.Place name: Pond Suploch, Hiddensee (Germany) Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ.© 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 10 µm (1, 6, 7), 25 µm (2–5).7  stages of phagocytosis of  Pyxidicula operculata. Last image: Phagocytosis of Pyxidicula has completed. On the right the typical finely papillate bulbous uroid which recalls the family Amoebidae. Two empty tests of Pyxidicula had been discharged and stayed connected through fine plasma ribbons to the uroid.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 Suploch, Hiddensee (Germany) Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ.© 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 25 µm.Motion study, 3  stages.Saccamoeba limax in „classical“ shape as it can be found in literature. There are several cuboidal crystals (typical for this species), food vacuoles and the vesicular nucleus with its huge central nucleolus. On the left the likewise typical finely papillate bulbous uroid which recalls the family Amoebidae.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: Tropical freshwater aquarium Latitude: 54.3018013     Longitude: 10.07120132Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 25 µm.Motion study, 3  stages.Saccamoeba limax in „classical“ shape as it can be found in literature. There are several cuboidal crystals (typical for this species), food vacuoles and the vesicular nucleus with its huge central nucleolus. On the left the likewise typical finely papillate bulbous uroid which recalls the family Amoebidae.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: Tropical freshwater aquarium Latitude: 54.3018013     Longitude: 10.07120132Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 10 µm (1, 6, 7), 25 µm (2–5).7  stages of phagocytosis of  Pyxidicula operculata. Last image: Phagocytosis of Pyxidicula has completed. On the right the typical finely papillate bulbous uroid which recalls the family Amoebidae. Two empty tests of Pyxidicula had been discharged and stayed connected through fine plasma ribbons to the uroid.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 Suploch, Hiddensee (Germany) Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ.© 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.For further information about the image, please click here: Link to protisten.de page

Scale bars indicate 10 µm (1, 6, 7), 25 µm (2–5).7  stages of phagocytosis of  Pyxidicula operculata. Last image: Phagocytosis of Pyxidicula has completed. On the right the typical finely papillate bulbous uroid which recalls the family Amoebidae. Two empty tests of Pyxidicula had been discharged and stayed connected through fine plasma ribbons to the uroid.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 Suploch, Hiddensee (Germany) Latitude: 54.538638     Longitude: 13.097802Microscope Zeiss Universal, camera Olympus C7070WZ.© 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.For further information about the image, please click here: Link to protisten.de page