PLATE LX. 



External Anatomy of a Lobster. 



C, carapace; e, eye; g, gill; m, metastoma ; n, endopodite ; p, epipo- 

 dite; x, exopodite; I- VII, abdominal segments; 1, antennula; 2, an- 

 tenna; 3, mandibles; 4, 5, maxillae ; 6, 7, 8, maxillipeds; 9, big pincer ; 

 10-13, walking-feet. 



