Platk XXI.— Shows regenerating appendages on the same lobster be- 

 fore and after moulting. (Photograph from life, 4 natural size.) 



FUf. I. Lobster just before moulting. Length, 7+ inches. Shows 

 regenerating bud of second left swimmeret (2), and regenerating left 

 cheliped (1). 



Fl(j. II. Same lobster after moulting. Length, 8i inches. Shows the 

 regenerated left swimmeret (2), and left cheliped (1). 



