<?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">Aplacophora</topic></authority><related type="narrower"><topic>Caudofoveata</topic></related><related type="narrower"><topic>Solenogastres</topic></related><related type="broader"><topic>Mollusca</topic></related> <note xml:lang="en"><![CDATA[ Class of deep-sea mollusks lacking a shell and but covered by solid or hollow aragonotic sclerites (spines). They are characterized by having a mouth with very complex salivary glands and a unique sense organ, the vestibulum. In some classifications the subclasses under this class, Solenogastres and Caudofoveata, are listed as separate classes in their own right. ]]></note></mads>