
Green Crab - Carcinus maenas
Shell somewhat broader than long with 5 marginal and 3 frontal teeth. The last pair of legs are flattened, but not paddle-shaped. The carapace grows up to 90 mm wide.
Carcinus maenas is a widespread invasive species and is listed among the 100 "world's worst alien invasive species". Although invasive, they are the most common crab along the New England shore.
Habitat: Tide pool in the intertidal zone

"Carcinus maenas" is a common littoral crab, and an important invasive species, listed among the 100 "world's worst alien invasive species". It is native to the north-east Atlantic Ocean and Baltic Sea, but has colonised similar habitats in Australia, South Africa, South America and both Atlantic and Pacific coasts of North America.