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Species details



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DIVISION
CLASS
ORDER
Melosirales
FAMILY
Hyalodiscaceae
GENUS
SPECIES
Podosira, Ehrenberg, 1840
Morphological Characteristics

Rarely solitary, more usually found in chains of two or three cells. The shape of the cells varies from spherical to lenticular (oblate ellipsoid), with the valves highly convex. The valve is divided into sectors. Areolae and rimoportulae are visible on the surface while the edge is smooth. The cytoplasm contains several small rounded chloroplasts, highly pigmented and arranged in a star shape.

Distribution

This genus is benthic.  The cells attach themselves to the substrate by means of polysaccharide threads.

Notes

If the girdle is very shallow, the volume can be calculated as a spere.

Toxicity:

Not reported.

Resistence Stages:

Not reported.

References

Erstlich über ausgezeichnete jetzt lebende peruanische und mexikanische Meeres-Infusorien, welche mit zur Erläuterung räthselhafter fossiler Formen der Kreidebildung dienen., Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlich-Preussischen Akademie der Wissenschaften zu Berlin 1840:, Ehrenberg C.G., 1840, 157-162

SHAPE
Shape Type
complex
Shape Unit
Cell
Cod:
22 - Cylinder + 2 Half Spheres
Surface Area
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Volume
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