"Cunina rhododactyla, one of the Narcomedusae. c, circular canal; h, "otoporpae" (ear-rivets) or centripetal…
"Diagram of a vertical section through a young Cunina rhododactyla, passing on the right side through…
"Vacnolated endoderm cells of eartilaginous consistence from the axis of the tentacle of a Medusa (Cunina)."…