ClipArt ETC
"A, diagram showing the sequence of mesenterial development in an Actinian. B, diagrammatic transverse section of Gonactinia prolifera." — The Encyclopedia Britannica, 1910

Actinian

"A, diagram showing the sequence of mesenterial development in an Actinian. B, diagrammatic transverse…

"A, portion of a colony of Antipathes dichotoma. B, single zooid and axis of the same magnified. m, mouth; mf, mesenterial filament; ax, axis. C, transverse section through the oral cone of Antipathella minor; st, stomodaeum; ov, ovary." — The Encyclopedia Britannica, 1910

Antipathes Dichotoma

"A, portion of a colony of Antipathes dichotoma. B, single zooid and axis of the same magnified. m,…