These paired glands are located under the dorsal body cuticle where they are attached by ducts to the dorsal foveae.
However, this monkey was fully pigmented, had well-developed foveae, and appeared entirely normal.
The positions of the optic discs and foveae were back-projected using a reversible ophthalmoscope and mapped.
The foveae and optic discs were mapped on a tangent screen located 114 cm in front of the animal.
They have two spots of concentrated sensor cells on their retina (known as foveae), one to look more forward, and one to look more backward.
Dorsum of head covered with scattered to abundant weakly impressed foveae.
