"Polyplacophora" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
A class in the phylum MOLLUSCA comprised of flattened, elongated marine mollusks, commonly called chitons. They are unique in that they possess seven or eight separate shell plates.
Below are MeSH descriptors whose meaning is more general than "Polyplacophora".
Below are MeSH descriptors whose meaning is more specific than "Polyplacophora".
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