Geosesarma dennerle, or the purple vampire crab, is a species of small land-living crab which is found on Java, Indonesia. Described by scientists in 2015, it is already popular in the aquarium trade, in which all species of Geosesarma crabs are often called vampire crabs. (x x x x x)
Special thanks to @roksyk for showing me this species!
this was a good crab until I saw the name and now it is a great crab