Pinnotheres maculatus Directory References Discover What’s the Difference Between a Turtle and a Tortoise? Timeline of the 2000s 7 Deadliest Weapons in History 7 of History's Most Notorious Serial Killers Secret Service Code Names of 11 U.S. Presidents 10 Best Hockey Players of All Time New Seven Wonders of the World Contents Pinnotheres maculatus crab Learn about this topic in these articles:pea crabs In pea crabP. maculatus, with a range similar to that of P. ostreum, is found in the shells of scallops, clams, and mussels. P. pisum, found in European coastal waters, lives in mussel and cockle shells. Read More