The vampire crab ( Geosesarma sp. ) is a small land crab native to Southeast Asia, primarily Indonesia. It is prized for its bright colors and fascinating behavior.
 Features :
 Size : About 2 to 3 cm in shell, with legs that can reach 5 to 6 cm in span.
 Colors : Varies by species, but often with purple, red, or orange hues and yellow or red eyes.
 Behavior : Rather discreet, it likes to hide in humid areas and comes out mainly at night. It is territorial and can show aggression towards its fellow creatures.