<?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">Alcyonaria</topic></authority><related type="narrower"><topic>Alcyonacea</topic></related><related type="broader"><topic>Anthozoa</topic></related><variant type="other"><topic>Octocorallia</topic></variant><variant type="other"><topic>octocorals</topic></variant> <note xml:lang="en"><![CDATA[ Subclass comprising three orders, Alcyonacea, Helioporacea, and Pennatulacea, of water-based organisims with around 3,000 species. Polyps have 8 pinnately branched tentacles, 8 mesenteries, and a single siphonoglyph. Nearly all colonial with internal skeletons. ]]></note></mads>