MALACOSTRACA. DECAPODA. 



279 



Cancer -,* the Crab. 



The true Crabs are much more aquatic in their 

 habits than any of the preceding, being essentially 

 marine animals, though they often crawl about the 

 rocky margins of the sea, especially at ebb-tide. 



COMMON CRAB (Cancer Pagurus). 



All the feet are exposed, and attached to the sides 

 of the breast ; the antennae are so short as to be 

 almost concealed ; the claws are rounded. All the 

 feet terminate in a pointed joint. The well-known 



* Its Latin name. 



