Fig. 8

Schematic highlighting our hypothesis for nematocyst sequestration in Berghia stephanieae adults. A Early in the digestive system (e.g., oral tube, pharynx, or stomach), nematocysts (the organelle) are stripped of their nematocyte (the cell) and then enter the digestive gland. B The distal end of a B. stephanieae ceras showing the cnidophages in the proximal end of the cnidosac (inset) identify and phagocytose nematocysts over other structures after they enter the cnidosac. Abbreviations: bm, buccal mass; cs, cnidosac, d, dinoflagellates, dg, digestive gland; j, jaws; nc, nematocyte(s); nem, nematocyst(s); rad, radula; sp, spirocyst(s); spc, spirocyte(s)