Immediately below the outer epidermis, a hypodermal layer developed made up of cells with thickened walls, offering mechanical support.

Then they feed on the leaf substance leaving only the outer epidermis.

In soft or green tissues, this is usually a waxy cuticle over the outer epidermis.

The outer epidermis is relatively thin, so that hippos dehydrate rapidly in dry environments.

The skin consists of two primary layers: the inner layer called the dermis, composed largely of connective tissue, and the outer, thinner epidermis.

Ultrastructural analysis has revealed tissue separation at the junction between the granular cells and the stratum corneum in the outer epidermis.

The internal, living portion of the zooid is known as the polypide, whose walls are formed by the outer epidermis and inner peritoneum.

These regions include a central pith, a surrounding cortex, and an outer epidermis, each of which has an analog in the stem of a vascular plant.

The surface and substance of the leaf are eaten, leaving the outer epidermis (which is left intact) in a dried up condition enclosing the accumulation of frass.

Like other comb jellies, the body wall of nudans consists of an outer epidermis and an inner gastrodermis, separated by a jelly-like mesoglea.