"Astacoidea" 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 superfamily of various freshwater CRUSTACEA, in the infraorder Astacidea, comprising the crayfish. Common genera include Astacus and Procambarus. Crayfish resemble lobsters, but are usually much smaller.
Below are MeSH descriptors whose meaning is more general than "Astacoidea".
Below are MeSH descriptors whose meaning is more specific than "Astacoidea".
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