Masking Crab

Scientific Name: Loxorhynchus crispatus
Range: Alaska to Baja California
Habitat: Rocky areas and kelp forests
Diet: Many different invertebrates and kelp
Size: Shells of males up to approximately 4 in (10 cm) and females up to 2.7 in (7 cm) 
Fun Fact: This crab gets its name from the behavior of attaching sponges, algae and other materials on its back as camouflage. 
IUCN Conservation Status: Not endangered