<?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">Maxillopoda</topic></authority><related type="narrower"><topic>Cirripedia</topic></related><related type="broader"><topic>Crustacea</topic></related> <note xml:lang="en"><![CDATA[ Members of a class of around 23,000 species of ancient, relatively small, primarily marine crustaceans including barnacles, copepods, mystacocarids, tantulocarids, branchiurans, ostracods, and related groups, having five pairs of head appendages, a single median eye, and up to 11 trunk segments. ]]></note></mads>