Vampyrius
R. vampyrus can grow to 4.5 cm. There is webbed skin between the toes, so it can glide between trees. The skin of the frog's back is copper-brown in color with fainter, dark-brown mottling.  The chest and belly are white, with a some black marks at the edge of the chest.  The upper surfaces of the arms and legs are copper brown with some dark brown marks.  The upper surfaces of the front and back feet are copper brown in color which fades to pinkish-cream or grey at the toes.  The lower surfaces of the front and back feet are a pale grey color.  The upper surface of webbing of the hands and feet is dark grey to black in color.  The lower surfaces of the species are grey.  R. vampyrus has pale yellow/gold irises with a small rim of blue. There is also a pointed piece sticking out at tibiotarsal articulation. Tadpoles have black hooks on their mouths made of keratin, which is the same thing fingernails are made of. The tadpoles have long bodies and long tails.  They are dark brown in color, but sometimes the tail fins have no color. The tadpoles' eyes are black. The iris of the eye has gold specks.