This color change is brought about by the movement of dark pigment granules.

The snake has the ability to change color through the movement of its dark pigment granules.

Up to five pigment granules may be present clumped into a single mass.

Pigment granules are refractile and yellow to brown in colour.

The result is a lighter pigment granule, with different optical properties.

A transparent globule may be present along with one to three pigment granules.

They adhere closely to the nucleus and have 1-2 pigment granules.

A vacuole is present and occasionally one or more pigment granules.

Can't see the pigment granules and might have some surface anti-frizz type product on it, too.

One ot two small pigment granules may be seen.

Pigment granules are heavy and fairly evenly distributed in the cytoplasm.

The number of pigment granules observed in the histological sections are variable among individuals.

The second is composed of protein crystals and amorphous pigment granules.

In dark eyes, the stroma often contains pigment granules.

Their pigment granules concentrated in a single focus.

Because of this clumping, the number of pigment granules and their size are difficult to determine.

They get their color from carotenoid pigments contained in bodies called pigment granules.

Inside the chromatophore cell, pigment granules are in an elastic sac.

Pigment granules are present only in microgamonts and macrogametes.

It usually has numerous fine pigment granules.

In the male pigment granules are scattered while in the female they are more dense.

Conspicuous greenish-black pigment granules are located in a distinct vacuole.

In rare cases, pigment granules break loose from the back of the iris and gradually clog the drainage system.

Dispersion of the pigment granules in the chromatophores sets the intensity of each color.

By manipulating the pigment granules in its body, it can produce effective camouflage against its background.