Figure 3
From: The diversity, development and evolution of polyclad flatworm larvae
Photomicrographs of live polyclad larvae and confocal laser scanning micrographs of their musculature stained with phalloidin. (A) Götte’s larva of Stylochus ellipticus, left lateral view. (B-F) Müller’s larvae collected from plankton offshore of Fort Pierce, Florida. (B-D): 8-lobed larvae; (E, F) 10-lobed larvae. In (E) the late larval stage of this worm is recognizable by elongation in the anterior-posterior axis, dorso-ventral flattening and the development of a sucker on ventral surface. The lateral lobes are relatively short and are slowly being incorporated back into the body. ac, apical cilia; cci, caudal cilia; ct, ciliary tufts; ddll, paired dorsal lobes; m, mouth; oh, oral hood; rpr, rhabdomeric photoreceptor, s, sucker; vll, ventrolateral lobes. Scale = 50 μm.