Figure 4. Scanning electron photomicrographs show the scale
microstructure in E. macmahonii : upper head scales (A, 1000X and
B, 3000X), midbody dorsal scales (C, 1000X and D, 3000X).
In Cerastes gasperettii , microstructure of the dorsal surface of
head, mid-body, and caudal scales are more or less similar, looking like
small blunt prominences (Figure 5).