Their external border is continuous with the internal layer of the choroid coat.
The pigmented layer of the choroid coat represents this blackened lining.
The retina is dark purple in color, this color being caused by a layer of cells next to the choroid coat.
It is found directly behind the iris and is attached to the choroid coat by means of delicate ligaments.
Take out both the lens and the iris and the choroid coat of the eye will reproduce both.
The choroid coat will be recognized as the black layer lying subjacent to the sclerotic.
The choroid coat is a bell-shaped, dark membrane which lines the sclerotic.