[1][2][3] It is named for Darrel Frost, an American herpetologist, in recognition of the online database Amphibian Species of the World that he maintains.

The finger tips are slightly expanded but lack grooves; dermal fringes are weakly developed and webbing is absent.

The toe tips are rounded and slightly enlarged into discs with prominent dorsoterminal grooves; dermal fringes are well developed.

The sides of the body are greyish-brown with a dark blackish-brown band, marking, or skin fold starting from tip of the nostril and running towards the groin.

The forearms and forelegs have light flesh red color, mottled with dark brown on the margins.