Bufo ictericus integument was investigated by stereoscopic, low vacuum scanning electron
microscopy, transmission electron microscopy and light microscopy. The studies revealed,
that the dorsal integument surface is rougher than ventral. Three types of projections are
visualized: larger rounded verrucae, smaller conical cornified tubercles, and conical short
spines. Prominent verrucae are observed on the dorsal surface, being flatter on the ventral
surface. The tubercles are visualized only on the dorsal surface. The verrucae are separated …