<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31435900</termId><termName>Hydra</termName><termType>PT</termType><termNote><![CDATA[ Members of a genus containing freshwater invertebrate animals of very simple structure, the body having the form of a cylindrical tube, with a mouth surrounded by a ring of tentacles with stinging thread-cells, usually living attached to objects or plants, though able to float or move by cartwheeling from base to tentables; they reproduce by buds or eggs. ]]></termNote><termCreatedDate>2026-03-30 20:57:32</termCreatedDate><relation><relationType>UF</relationType><termId>31435901</termId><termName>hydra</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31435902</termId><termName>hydrae</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31435903</termId><termName>hydras</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31409371</termId><termName>Hydridae</termName><termType>PT</termType></relation></term>  </Zthes>