FIGURE 9.

Chimeric larvae and colonies formed by one or more larvae that settled on another larva (a–c) or on an individual in a different stage of development (d), which are able to undergo metamorphosis (d, e) and secrete a skeleton on its basal plate (f–i) in the water column. Most of these recruits were able to attach to the substrate a second time (h, i). Arrows indicate the following: op—oral pore; as—aboral side; mo—mouth; me—mesentery; te—tentacle; nb—batteries of nematocysts; and sk—skeleton. Scale bars represent 0.5 mm