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moving images
Series of images showing this amoeba migrating across the slide. This image was taken by D. J. Patterson. The copyright to this image is held by D. J. Patterson
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Vannella
From the collection
Gems from Tvärminne
| Description of Vannella: Amoebae with flattened, fan-shaped appearance (i.e. flabellate) without surface wrinkles, some species less than 10 µm in length, others up to 75 µm long.. Breadth often greater than length. Some species are spatulate with a posterior tail. Broad anterior hyaline zone may extend along the sides of the cell. Cytoplasmic mass contains a single nucleus with a central nucleolus. Floating form usually with long, markedly tapering pseudopodia. This feature is useful in distinguishing Vannella from the morphologically similar genus Platyamoeba at the light microscope level. At the ultrastructural level, Vannella has surface pentagonal glycostyles while Platyamoeba has a an indistinct glycocalyx. Some species with small cytoplasmic crystals. Grows readily under laboratory conditions so appears common in stored samples collected from the field. |
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Vannella in other collections
Vannella, from
American Type Culture Collection
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Vannella miroides, from
Protozoan biomonitors in China
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Vannella platypodia, from
Protozoan biomonitors in China
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Vannella, from
Protsville drawings of freshwater protists
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Vannella aberdonica, from
American Type Culture Collection
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Vannella, from
American Type Culture Collection
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Vannella aberdonica, from
American Type Culture Collection
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Vannella aberdonica, from
American Type Culture Collection
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Vannella, from
Athens, Georgia, USA
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Vannella, from
Plum Island, Massachusetts coast, USA
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Vannella, from
Yellowstone National Park (Wyoming, USA)
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Vannella, from
Lake Donghu, China
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