Scinax similis (10.3897-zoologia.34.e20176) Figures 36–40

Description:

Figures 36–40; Light micrograph of the integument of S. similis: (36) Dorsal region (Mallory´s trichrome staining); (37) Dorsal region (AB-method); (38) Ventrolateral region (HE-staining); (39) Ventral region (Mallory´s trichrome staining); (40) Ventral region (AB-method). Melanophores (_) and iridophores (→) organized as chromatophore units occur in both dorsal and ventrolateral integument. Iridophores exhibit alcianophilic reaction. Note serous glands (Ø) and apocrine glands with granular content (¬) in the spongious dermis. In the ventral region, cutaneous elevations (¬) are separated by prominent grooves (Ú). The EK-layer (Æ) occur in the dorsal integument but not in the ventral integument. Moreover, the epidermis (E) of the ventral region is more developed than other integument regions. E = epidermis; CD = compact dermis; H = hypodermis.