Species information
Scientific name: Orisarma dehaani
Japanese name: クロベンケイガニ
Chinese name: 漢氏東方蟹、漢氏螳臂蟹
English name: Orisarma dehaani
Origin: Japan (from the Pacific coast south of Miyagi and the Sea of Japan coast south of Aomori to the Ryukyu Islands), the Korean Peninsula, Taiwan, the southern coast of China
Ecology and description
This crab lives in a habitat similar to that of the red flower crab (Orisarma intermedium), along the banks of river mouths, and it retreats into its burrow when in danger. The carapace width reaches about 4.2cm at most. The body color ranges from brown to blackish brown, and the claws are purple with pale yellow granules. The walking legs have many long stiff hairs, and the front side edge of the carapace has only one tooth, at the outer corner of the eye socket.
Field photographs taken during our tours, with observation dates
