bioluminescencedragoneuropean_mythologyfeatureless_crotchferalgillsglowinghornkeel_(anatomy)long_necklong_tailmalemembrane_(anatomy)membranous_wingsmythological_creaturemythological_scaliemythologynebelviperopen_mouthoutsidescaliesolostandingtailtapering_tailthick_tailwestern_dragonwide_crotchwingswyvern