Fig. 5
From: Ultrastructural studies distinguish skin diversities among Galápagos iguanas
Immunohistochemical analysis of cytokeratin filaments (ckpan) in skin samples from three Galápagos iguana species. (A) Immunohistochemical reaction highlights the presence of stratified epithelium in the non-black-colored (pink) skin of C. marthae. (B-E) No stratification of epithelial layers was observed in the black-colored skin of C. marthae (B) A. cristatus (C), and in both black-colored (D) and non-black-colored (E) skin of C. subcristatus. Scala bar = 100 μm