“The Caribbean Land Hermit Crab (Coenobita clypeatus), also known as the soldier crab, West Atlantic crab, tree crab, or purple pincher (due to the distinctive purple claw), is a species of land hermit crab…” ~iNaturalist,
And on iNaturalist Cost Rica they have been reported only from the South Caribbean area of Limón Province where I visited recently.
For several different species of crabs, see my gallery: CRUSTACEANS CR (linked).
¡Pura Vida!