Figure 4
From: The diversity, development and evolution of polyclad flatworm larvae
Photomicrographs of a late stage 10-lobed larva collected from the plankton. (A) Live animal - dorsal view showing five rhabdomeric photoreceptors and the paired dorsal and dorsolateral lobes. (B) Live animal - ventral view reveals a well-developed sucker posterior to the mouth. (C) Confocal laser scanning micrograph of the same larva stained with phalloidin showing the musculature of the sucker, mouth and developing pharynx. Scale = 50 μm. dll, dorsolateral lobe; ddll, paired dorsal lobes; ll, lateral lobes; m, mouth; oh, oral hood; ph, pharynx; rpr, rhabdomeric photoreceptors; s, sucker; vll, ventrolateral lobes.