<?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">Osteichthyes</topic></authority><related type="narrower"><topic>Siluriformes</topic></related><related type="narrower"><topic>mudfishes</topic></related><related type="narrower"><topic>Actinopterygii</topic></related><related type="narrower"><topic>Sarcopterygii</topic></related><related type="narrower"><topic>Cypriniformes</topic></related><related type="broader"><topic>Vertebrata</topic></related><related type="broader"><topic>fish</topic></related><variant type="other"><topic>Pisces</topic></variant><variant type="other"><topic>bony fish</topic></variant><variant type="other"><topic>bony fishes</topic></variant><variant type="other"><topic>fishes, bony</topic></variant> <note xml:lang="en"><![CDATA[ Class of acquatic animals (fish) characterized by possessing a skeleton at least partly composed of true bone (as opposed to cartilage) and typically a swim bladder (an air-filled sac to give buoyancy), a single pair of gills, gill covers over the gill chamber, bony platelike scales, a skull with sutures, and external fertilization of eggs. Modern bony fishes represent over 20,000 species in more than 400 families. In some classifications it is listed as a superclass instead of a class. ]]></note></mads>