82 



THE STORY OF ANIMAL LIFE 



crab being very curiously modified and tucked in 

 under the carapace or "shell." A form excep- 

 tional in the fact that frequents the land is the 



Land-Crab of the West Indies (Fig. 17). Another 

 land crustacean, Birgus latro, the Robber Crab, 

 belongs to the previous group. 



