Eiffinger’s Tree Frog

艾氏樹蛙 / Eiffinger's tree frog / アイフィンガーガエル (Kurixalus eiffingeri)

Species information

Scientific name: Kurixalus eiffingeri
Japanese name: アイフィンガーガエル
Chinese name: 艾氏樹蛙、琉球原指樹蛙
English name: Eiffinger’s tree frog
Origin: Ishigaki, Iriomote, Taiwan

Ecology and description

Eiffinger’s tree frog belongs to the Kurixalus genus and is found in Japan on Ishigaki and Iriomote islands. It has variable body coloration. This species lays eggs in tree holes, and both males and females guard the young. Females lay unfertilized eggs as food for the tadpoles. The population of Eiffinger’s tree frog is decreasing due to habitat destruction.

Field photographs taken during our tours, with observation dates

Eiffinger's tree frog (Kurixalus eiffingeri) Oct 15, 2024 This individual is likely a juvenile, which is why the head appears proportionally larger Ishigaki
Oct 15, 2024, Ishigaki, This individual is likely a juvenile, which is why the head appears proportionally larger
Eiffinger's tree frog (Kurixalus eiffingeri) Oct 15, 2024 An individual with relatively pale coloration Ishigaki
Oct 15, 2024, Ishigaki, An individual with relatively pale coloration
Eiffinger's tree frog (Kurixalus eiffingeri) Nov 21, 2022 Eggs in a tree hole; I didn't notice at the time of shooting, but upon reviewing the photos, I realized there was a frog behind the eggs Ishigaki
Nov 21, 2022, Ishigaki, Eggs in a tree hole; I didn’t notice at the time of shooting, but upon reviewing the photos, I realized there was a frog behind the eggs