There's one called Marill who looks like a blue mouse with a big white underbelly.

He saw its underbelly, white and thick in the moon- light.

Its fur is a grey in colour, with a white underbelly and pink skin.

It was general ashy grey with a white underbelly.

The skin of a tiger shark can typically range from blue to light green with a white or light yellow underbelly.

Flipper has a white underbelly, with a light blue top.

Males are a lighter tan colour with the same white underbelly and pattern on the legs.

These sparrowhawks are grey with a white underbelly and orange accents on the neck.

Its fur is the color of the sand it burrows in, with a white underbelly.

The coat tends to be a pale tan color with a white underbelly.