Tetractinomorpha

== Translingual == === Etymology === Tetractenion +‎ -morpha === Proper noun === Tetractinomorpha A taxonomic subclass within the class Demospongiae – many sponges. ==== Hyponyms ==== (order): Astrophorida, Axinellida, Hadromerida, Lithistida, Spirophorida - orders === References === Tetractinomorpha on Wikipedia.Wikipedia Tetractinomorpha on Wikispecies.Wikispecies Category:Demospongiae on Wikimedia Commons.Wikimedia Commons