Scientific name: Pleuroncodes planipes
Taxonomy: Kingdom Animalia → Phylum Arthropoda → Subphylum Crustacea → Superclass Multicrustacea → Class Malacostraca → Subclass Eumalacostraca → Superorder Eucarida → Order Decapoda → Suborder Pleocyemata → Infraorder Anomura → Superfamily Galatheoidea → Family Munididae → Genus Pleuroncodes
Locations: Eastern Pacific
Group: Marine Life → Invertebrates → Lobsters
Despite the name, it's a squat lobster, not a crab.
These sometimes wash ashore in huge numbers.