Skip to main content
Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: Phylogenetic mapping of scale nanostructure diversity in snakes

Fig. 4

Cell surface secondary structures ignored in the analyses. The ‘cell surface’ character can take four alternative possible states: ‘smooth’, ‘holes’,‘straight channels’ or ‘labyrinthine channels’. However, (a) roundish and (b) elongated holes (some of which are highlighted in orange) were not differentiated. We also ignore: (c) very small cell surface pits (orange arrows), (d) ‘tubular’ larger structures (here, in Pareas carinatus), and (e) low-frequency geometries, such as this large elevation (orange arrow) in Bitis gabonica. Additional details are given in the Material and Methods section. Scales (white bars): 5 μm

Back to article page