Abstract
IN the shells of recent molluscs, the nacreous conchiolin appears in the electron microscope in the form of lace-like reticulated sheets or perforated leaflets1,2. Three patterns of structure (nautiloid, gastropod and pelecypod), differing by the size and the shape of the trabeculæ and by the disposition of the fenestration, have been provisionally recognized in these sheets.
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References
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GRÉGOIRE, C. Thermal Changes in the Nautilus Shell. Nature 203, 868–869 (1964). https://doi.org/10.1038/203868a0
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DOI: https://doi.org/10.1038/203868a0
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