SEA-FISHERIES LABORATORY. 



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diameters. They have a kind of papery lustre and are hard. 

 Some of them appear to be embedded in the liver, but they 

 can generally be separated, when it is seen that they are 

 attached to the peritoneum by slender pedicels. 



They are easily cut. Fig. 3 represents a transverse section 

 through one of them. At first sight the appearance is very 



Fig 3. 



puzzling, but on dissecting a cyst one finds that a firm nucleus 

 can easily be " shelled out." Then the nucleus can easily be 

 dissociated into two or four collapsed thin- walled cysts that 

 were evidently spherical when they were in their original con- 

 dition. So Fig. 3 shows four of these cysts, crumpled together 



