Fig. 2
From: Ultrastructural studies distinguish skin diversities among Galápagos iguanas
Skin histological analysis of three Galápagos iguana species. (A) The haematoxylin and eosin-stained section of black-colored A. cristatus skin exhibits a thin stratum corneum (arrow), a single layer of columnar epithelium (arrowhead), and abundant melanin (asterisks). (B) The image displays numerous large fibroblast-like cells arranged in a palisade (asterisks) under the epidermis in the non-black-colored skin of C. subcristatus. (C) Black-colored skin of C. subcristatus shows numerous melanocyte cells (arrows). (D) Non-black-colored (pink) skin of C. marthae characterized by a thick superficial loose dermis (arrow) and massive blood vessels (asterisks). (E) Black-colored-skin of C. marthae displays numerous melanocyte cells (arrows). Scale bar = 100 μm