Fig. 1
From: Phylogenetic mapping of scale nanostructure diversity in snakes
Examples of oberhautchen cell nanostructures in snakes. SEM images from sheds of (a) Atropoides olmec (Viperidae): polygonal cells with surface labyrinthine channels and regular cell borders; (b) Chilabothrus strigilatus (Boidae): wide cells with surface holes and sawteeth cell borders; (c) Dendroaspis jamesoni kaimosae (Elapidae): cells of unknown shape with a dense network of elevations; (d) Boaedon fuliginosus (Lamprophiidae): wide cells with surface channels and cell borders exhibiting long digitations; and (e) Philothamnus angolensis (Colubridae): ‘wide’ cell shape with surface covered with ‘straight channels’, and cell borders exhibiting ‘mild’ digitations; the cell surface also exhibits ‘ridges’, i.e., inverted-gutter deformations that run along the cranial-caudal axis. Scales (white bars): 5 μm (a,b), 2 μm (c,d) and 10 μm (e)