👉 The term "epidermous" refers to a type of skin that is characterized by its thicker, more fibrous outer layer. It is often associated with animals such as reptiles and amphibians, which have a thick, flexible skin that covers their bodies and provides protection from the elements. Epidermous skin has a lower surface area-to-volume ratio than epidermal keratinocytes, which are the cells responsible for producing keratin (the protein that makes up hair and nails).