Fig. 5. Electron micrograph showing ultrastructure of epidermis in hatchling king snakes Lampropeltis getula, sampled on the day of hatching (A) and 2 days after the first ecdysis (B). The photos feature the mesos layer (m), which pre-shed has disorganized bilayer structures (arrows) but well-organized and continuous bilayers in the extracellular domains of post-shed skin (arrows). The number of bilayers is doubled in the post-shed skin relative to pre-shed. After Tu et al. (2002).