<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31455131</termId><termName>Spondylus</termName><termType>PT</termType><termNote><![CDATA[ Genus of bivalve mollusks, characterized by foliaceous spines. They are used for edible meat and for their decorative shells. Although some common names include the word "oyster," they are not closely related to true oysters (in the family Ostreidae).  ]]></termNote><termCreatedDate>2026-03-30 21:02:30</termCreatedDate><relation><relationType>UF</relationType><termId>31455132</termId><termName>spiny oysters</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31455133</termId><termName>spondylids</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31455134</termId><termName>spondylus</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31455135</termId><termName>thorny oysters</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31435930</termId><termName>Spondylidae</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31469116</termId><termName>Spondylus calcifer</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31469118</termId><termName>Spondylus princeps</termName><termType>PT</termType></relation></term>  </Zthes>