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portrait
One of the largest freshwater heliozoa, may measure up to 500 microns, often with outer layer being very vacuolated. Dark ground. This image taken by Michele Bahr and David Patterson of material collected from the water column and the margins of Lake Toolik (Alaska, USA) in August, 2001. Image copyright: Michele Bahr and D. J. Patterson, used under license to MBL (micro*scope).
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Actinosphaerium eichhornii
From the collection
Lake Toolik, Arctic Alaska
| Description of Actinosphaerium eichhornii: Actinosphaerium is a spherical naked actinophryid heliozoon with numerous small nuclei. Cell body 45 - 1000 microns. The cytoplasm always has a discrete peripheral layer of large vacuoles, and the nuclei occur at the inner boundary of this layer. Many arms, tapering from base to tip - axonemes terminate on the nuclei or electron-dense material near the nuclei. Several species are known, mostly freshwater and distributed world wide. |
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Actinosphaerium eichhornii in other collections
Actinosphaerium eichhornii, from
Protsville
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Actinosphaerium eichhornii, from
Protsville drawings of freshwater protists
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Actinosphaerium eichhornii, from
Limnic and marine Protists of Northern Germany and the Alps
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Actinosphaerium eichhornii, from
Limnic and marine Protists of Northern Germany and the Alps
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Actinosphaerium eichhornii, from
Limnic and marine Protists of Northern Germany and the Alps
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Actinosphaerium eichhornii, from
Limnic and marine Protists of Northern Germany and the Alps
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Actinosphaerium eichhornii, from
Freshwater ponds of Konstanz (Germany)
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Actinosphaerium eichhornii, from
Cumloden, Massachusetts, USA
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Actinosphaerium eichhornii, from
Cumloden, Massachusetts, USA
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Actinosphaerium eichhornii, from
Cumloden, Massachusetts, USA
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Actinosphaerium eichhornii, from
Freshwater ponds of Konstanz (Germany)
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Actinosphaerium eichhornii, from
Cumloden, Massachusetts, USA
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