Species information
Scientific name: Geothelphusa iheya
Japanese name: イヘヤオオサワガニ
Chinese name: 伊平屋澤蟹
English name: Iheya Geothelphusa freshwater crab
Origin: Iheyajima
Ecology and description
This species is endemic to Iheyajima and is closely related to those on Okinawajima (Geothelphusa grandiovata, Okinawa Geothelphusa Freshwater Crab) and Kumejima (Geothelphusa kumejima, Kumejima Geothelphusa freshwater crab). The anterior part of the carapace is notably elevated, and the male has a significantly larger claw on one side.
Field photographs taken during our tours, with observation dates

