Chasmagnathus convexus

Mud-Flat Crab (Chasmagnathus convexus) (5780853050)
cc-by-3.0

Thomas Brown Wikimedia Commons
Description: Taken in Sai Kung East country park. It seems to best fit C. convexus, but I am definitely not a crab expert, so please let me know if you think it is another. Date: 22 May 2011, 19:31. Source: Mud-Flat Crab (Chasmagnathus convexus) Uploaded by mgiganteus. Author: Thomas Brown.
Japan half freshwater animal, Chasmagnathus convexus (15601195668)
cc-by-sa-3.0

harum.koh Wikimedia Commons
Description: ハマガニ. at Suma aquarium. www.inaturalist.org/calendar/harumkoh/2014/11/9. Date: 9 November 2014, 15:58. Source: Japan half freshwater animal, Chasmagnathus convexus. Author: harum.koh from Kobe city, Japan. Camera location34° 38′ 38.51″ N, 135° 07′ 39.66″ E View all coordinates using: OpenStreetMap 34.644030; 135.127683.