WING 



BEA K OR UMBONE 

 FLU TED SCULP TUR E 

 POS T ER lOR SLOP E 



Ray (color M/vRKiNO") 

 radial swelling 

 Radial d ep ressio m 



PUS T U LE 



posterior ridce 

 growth line in the 

 epidermis 



ANTERIOR END 



LEFT VALVE 

 RIGHT VALVE 

 LU MUL E 



BEAK MARKINGS 



POSTERIOR RIDGE 



HINGE LIGAMENT 



POSTERIOR SLOPE 



POSTERIOR END 



HINGE LINE 

 EROSION ON BEAK 

 INTERDENTUM 



LATERAL TOOTH 



CARDINAL TOOTH 



MUSCLE SCA R 



BEAK CAVITY 

 ANTERIOR MaRG I N 

 PALLIAL LINE 



VENTRAL MARGIN 



DIAGRAM OF A CLAM SHELL 



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