P. squamosa consumes mostly plant material and some small amphipods within a relatively full digestive tract. The Scaly Rock Crab tends to occupy the intertidal and oceanic zones throughout the Pacific region.
P. squamosa mainly consumes plant material and some small amphipods, which are found within its full digestive system. The Scaly Rock Crab frequently resides in both intertidal and oceanic areas throughout the Pacific region.