The Coconut Crab has become extinct in may areas where people live. The Coconut Crab is the only species of the genus Birgus and is related to the terrestrial hermit crabs of the genus Coenobita ~ [Wikipedia]
Sally Lightfoot Crab (Graspus graspus), searching for algae in the intertidal zone / Santa Cruz Island, Galapagos, Equador. I remember these little guys everywhere on the rocks. like the fact that we share a name.
The blue lobster is 1 in 2 million. Recently one was caught off the coast of Maine. The fellow's daughter named it Skylar :) and is donating the rare crustacean to the Maine Aquarium that already has 3 other blue lobsters. Pintwist on blue