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Karayevia
Karayevia are oval-shaped monoraphids with pinched ends. Their raphe valve has striae that radiate out away from the center, and their raphe-less valve tends to have striae that are almost parallel. Karayevia grow on grains of sand, and prefer neutral to basic waters.
K. clevei
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Cells are 10-28 µm in length, 5-8.2 µm in width.
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Rows of striae per 10 µm are 18-24 on raphe valve, 9-12 on rapheless valve.
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Striae on rapheless valve (below) are coarse and parallel in the center, radiate at the ends.
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Striae on the raphe valve are radiate, and shortened at the center.
For more information, visit diatoms.org here.
A1m1 Karayevia clevei_edited
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