Striped Shore crab

Pachygrapsus crassipes is omnivorous, which means it eats both plants and animals. The main diet consists of algae such as the green algae Ulva, and Enteromorpha, or it eats red algae such as Endocladia, Rhodoglossm, and Grateloupia. Brown seaweed such as Fucus. However, Pachygrapsus crassipes also eats diatoms, worms, muscles, Hemigrapsus oregonesis , small dead fish., limpets, snails as in Littorina and Tegula, hermit crabs, and isopods. Pachygrapsus crassipes can also become cannibalistic and eat each other (usually this occurs when they still have their soft-shell after molting).