<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31438697</termId><termName>mussel shell</termName><termType>PT</termType><termNote><![CDATA[ The black or brownish shell material of any of numerous bivalve molluscs found worldwide, belonging chiefly to the orders Mytiloida  and Unionoida. ]]></termNote><termCreatedDate>2026-03-30 20:58:15</termCreatedDate><relation><relationType>BT</relationType><termId>31412380</termId><termName>seashell</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31370419</termId><termName>mussels</termName><termType>PT</termType></relation></term>  </Zthes>