PLATE II. 
STRUCTURE OF THE CHELA IN THE REGION OF AMPUTATION. 
Fic. 8. Section of the breaking joint from the region midway between the 
parts represented in Figs. 1 and 2, to show the relations of the epidermis, 
nerve trunk, and connective tissue membranes preceding autotomy. < 368. 
Fic. 4. Showing relation of tissues after the autotomy of the limb, and the 
function of the valve (v?) in closing the venous blood channel (ve). >< 368. 
Fie. 5. Section showing the relations of the muscle (mm) discovered at the 
breaking joint (bk). < 204. 
Fic. 6. In the fifth stage lobster this muscle has almost entirely degen- 
erated only remnants (md) of the former muscle being present. < 210. 
? 
