Geothelphusa aramotoi
Japanese name: アラモトサワガニ
Chinese name: 新本澤蟹
English name: Aramoto Freshwater Crab
Origin: Okinawajima, Iheyajima
Geothelphusa aramotoi is a freshwater crab with a carapace width of about 3 cm and has the most limited distribution among the species found on Okinawajima. It is restricted to specific mountain stream basins. Unlike other freshwater crabs that may leave the water temporarily, this species lives almost entirely in aquatic environments.
The origin of the species name was not explicitly stated in the original publication, but it is likely named after Y. Aramoto, the collector of the type specimen.
