(Oreophryne geislerorum)
Oreophryne geislerorum (also known as the Madang cross frog) is a species of frog in the family Microhylidae. It is endemic to Papua New Guinea where it is known from the northern coast between the tip of the Huon Peninsula and south and east to Kokoda and Popondetta. The specific name geislerorum honours two German taxidermists, Bruno Geisler and his brother Herbert Geisler.