PLATE IX. 
Figure 53. — Section of a portion of the viscera mass of a 
female oyster magnified 250 diameters ; a , epithelium of the 
surface of the body ; b, layer of connective tissue ; c, layer of 
wrinkled cells, which are probably fat cells, from which all 
the fat has been removed ; /*, sections of ten ovarian follicles ; 
e, the ovarian eggs. 
