<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31370345</termId><termName>Echiurida</termName><termType>PT</termType><termNote><![CDATA[ Formerly considered a separate phylum; now generally classified as an order of annelids. Contains primarily marine invertebrate sausage-shaped organisms, that have lost their segmentation, found in sand and mud of tropical and subtropical seas. A flattened extension of the head is curved along its lateral edges and sometimes shaped like a scoop or spoon to form a nonretractable anterior proboscis. Some respiration probably takes place across the body wall, but the hind gut is often utilized as a respiratory organ by drawing water through the anus.  ]]></termNote><termCreatedDate>2026-03-30 20:39:53</termCreatedDate><relation><relationType>UF</relationType><termId>31370346</termId><termName>echiurids</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31370347</termId><termName>spoon worms</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31370348</termId><termName>spoonworm</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31370349</termId><termName>spoonworms</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31339601</termId><termName>Echiura</termName><termType>PT</termType></relation></term>  </Zthes>