 The species was named in 1883 by Edward Pierson Ramsay in honour of Italian zoologist Giacomo Doria.Doria's tree-kangaroo is one of the largest tree-kangaroo species, and, on average, weighs between 6.5–14.5 kg, its length is 51–78 cm, with a long 44–66 cm tail.It has long dense brown fur with black ears and a pale brown or cream nonprehensile tail.