#sea_pen__seapen fleshy featherlike warm-water colonies supertype: #anthozoan__actinozoan sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed member of: #genus_Pennatula__Pennatula type genus of the family Pennatulidae: sea pens member of: #family_Pennatulidae__Pennatulidae sea pens member of: #order_Alcyonaria__Alcyonaria corals and sea anemones having eight branches member of: #class_Anthozoa__Anthozoa__Actinozoa__class_Actinozoa no alternation of generations the medusoid phase being entirely suppressed: sea anemones; corals member of: #phylum_Cnidaria__Cnidaria__Coelenterata__phylum_Coelenterata hydras; polyps; jellyfishes; sea anemones; corals member of: #subkingdom_Metazoa__Metazoa multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system member of: #kingdom_Animalia__Animalia__animal_kingdom taxonomic kingdom comprising all living or extinct animals
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