<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Tunicata</topic></authority><related type="narrower"><topic>Ascidiacea</topic></related><related type="narrower"><topic>Appendicularia</topic></related><related type="narrower"><topic>Thaliacea</topic></related><related type="broader"><topic>Chordata</topic></related><related type="broader"><topic>Protochordata</topic></related><variant type="other"><topic>Urochordata</topic></variant><variant type="other"><topic>tunicate</topic></variant><variant type="other"><topic>tunicates</topic></variant><variant type="other"><topic>urochordates</topic></variant> <note xml:lang="en"><![CDATA[ Subphylum of small marine animals found throughout the seas of the world. Most are underwater saclike filter feeders, although some are predators. Like other chordates, they have develop a notochord early in their development.  Adult members are commonly embedded in a tough secreted tunic containing cellulose.  ]]></note></mads>