262 



THE CRUSTACEA 



FIG. 152. 



Birgus latro, <J, about Jth natural size. The last pair of thoracic legs are folded out 

 of sight in the branchial chambers. (From Alcock, Naturalist in hidian Seas.) 



Fio. 153. 

 Neolithodes grimaldii (Lithodidae). (After Milne-Edwards and Bouvier, from Eiuyy. Brit.) 



