392 NEW YORK STATE MUSEUM 



PLATE 3 



Genus lunulicardium Miinster 



Pa.se 219 



Lunulicardium mulleri Holzapfel 



Pages 2;i, 228 



i Internal cast of left valve showing pallial line and juxtaposed 

 or fusing muscle scars. X2 



2 Rear view of the same. X2 



Intumescens zone Martenberg, Westphalia 



Lunulicardium (Prochasma) bickense Holzapfel 



Page 240 



3 A right valve showing the absence of radial surface characters 



Chautauqua subprovince Big Sister creek, Angola 



4 A small left valve 



5 A larger right valve 



Chautauqua subprovince 



Lower Portage falls, Genesee river 

 1 1 A larger left valve 



Chautauqua subprovince Johnson's falls, near Strykersville 



Lunulicardium suppar sp. nov. 



Page 244 



6, 7 Right and left valves. Natural size 



Chautauqua subprovince Johnson's falls, near Strykersville 



8 A right valve enlarged showing the imprint of the sica, the 



form, contour and surface lines of the shell. X2 



9 Anterior view of the same specimen, showing the coarse flat 



plications near the sica. X2 



Chautauqua subprovince Johnson's falls, near Strykersville 

 10 A right valve flattened in shale 



Genesee valley Lower Portage falls 



