Cnidae capsules and apical flaps.

<p>A) SEM image of a discharged capsule of a basitrich from the tentacle of <i>Relicanthus daphneae</i> comb. nov. showing apical flaps. B) Detail of the apical flaps (arrows) of <i>R. daphneae</i> comb. nov. C) SEM image of a discharged capsule of a microbasic <i>p</i>-mastigophore from a member of Scleractinia; notice the absence of apical flaps. D) SEM image of a discharged capsule of a microbasic <i>p</i>-amastigophore from a member of Actiniaria (<i>Metridium</i>). E) SEM image of a discharged capsule of a microbasic <i>p</i>-mastigophore from a member of Actiniaria (<i>Bunodosoma</i>); notice differential disposition of larger spines between microbasic <i>p</i>-amastigophores (distal to capsule, E) and <i>p</i>-mastigophores (proximal to capsule, C, D). Abbreviations: af, Apical flaps; cp, Capsule; tb, tubule. Scale bars: A, 30 µm; B, E, 3 µm; C, 5 µm; D, 10 µm.