Red- Eyed Reef Crabs [Eriphia ferox] are seen fairly commonly during the daytime, their beady blood red eyes peering out of dark crevices. But as nocturnal predators, they litter the seashore at night.
One has to be careful where one puts one’s foot, in fear of that characteristic crunch of a carapace.
One of its pincers is enlarged and armed with a molar-like ‘tooth’ to crush snail shells. The other pincer has slim ‘fingers’ that act like chopsticks to remove the snail after its shell is crushed.
I got to see the ‘tooth’ pincer in practice. One crab, who was not afraid of the spotlight, was busy working on a clam, turning it round and round as if it was looking for the weak spots, and scraping the edge to chip it open. Skills.