From Frustule
| Closed ring |
A type of girdleband, that completely encircle the circumference of the girdle (Round, Crawford, & Mann, 1990).
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References
- Round, F.E., Crawford, R.M. & Mann, D.G., 1990. The Diatoms: Biology and morphology of the genera. Cambridge: Cambridge University Press. 747 pp.
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External Links
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