Frenulum
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[Radiolaria Phaeodaria] Brace- or buttress-like bar, tube, or delicate latticed bridge connecting galea to rhinocanna (Coelodendridae) Phaeodarian cell features 8, inner shell.

[Cubo-/Scyphomedusae] In Cubomedusae: one of the four vertical mesenteries attached just inside the bell aperture and supporting the velarium.