Nyctimystes cryptochrysos

Nyctimystes cryptochrysos is a tree frog from Papua New Guinea. It lives on Fergusson Island between 900 and 1500 meters above sea level. Scientists think it might also live in the D'Entrecasteaux Islands.
The adult male frog is 48.2 to 50.6 mm long from nose to rear end and the adult female frog is 60.7 to 65.1 mm long. Most of its back is a mixture of light brown and dark brown in color. This frog has up-and-down lines on its lower eyelids and gold coloring on its legs and middle.
The scientific name of this species "chryptochrysos" comes from the Greek "kryptos" for "hidden" and "chrysos" for "gold," meaning the gold color on the middle of this frog's body.