Spicule Images: a) Styles (SEM); b) acanthoxea (SEM and light); c) three sizes of raphides in bundles (trichodragmata). Sample from Bocas del Todo. SEM photos by Magdalena Lukwiak; light photos by Cristina Díaz.
Tissue Images: a) Perpendicular section of the body; b) magnification of the left-hand side of a). Sample from the Bahamas.