<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31435925</termId><termName>Ostreidae</termName><termType>PT</termType><termNote><![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. ]]></termNote><termCreatedDate>2026-03-30 20:57:32</termCreatedDate><relation><relationType>UF</relationType><termId>31435926</termId><termName>true oyster</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31435927</termId><termName>true oysters</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31409385</termId><termName>Ostreoida</termName><termType>PT</termType></relation></term>  </Zthes>