<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Ostreidae</topic></authority><related type="broader"><topic>Ostreoida</topic></related><variant type="other"><topic>true oyster</topic></variant><variant type="other"><topic>true oysters</topic></variant> <note xml:lang="en"><![CDATA[ Family of marine bivalves having a rough irregular shell, of which the flattened left side is always underneath, closed by a single adduction muscle; they live free on the bottom or attached to stones or other object in shallow water on seacoats or brackish river mouths. ]]></note></mads>