He has been so named because his eyes have a black, mask-like coloration around them.

The black coloration is due to charcoal fragments from burnt wood.

As a whole the female shows no light color marking and was a fairly uniform dark brown to black coloration.

Their nearly black coloration is undoubtedly an adaptation toward this habit.

It has a mottled black, white and red coloration over the entire body, which is rather elongated.

With its deep purplish black coloration it is able to absorb heat to survive.

They have a stocky body with a black or dark brown basic coloration, including head and legs.

It is known for its striking black and yellow coloration.

A recessive gene causes the black coloration in these animals.

This is the only species of spiny mouse which may have black coloration.