388 NEW YORK STATE MUSEUM 



PLATE 2 



Genus lunulicardium Miinster 



Page 219 



Lunulicardium (Chaenocardiola) clymeniae sp. now 



Page 234 



1-5 Views of a right valve, showing rear view with normal con- 

 vexity and coarse plications behind the beak, lateral view 

 with very fine surface striation, interior of valve and struc- 

 ture of the hinge which has been modified by a fine seam 

 traversing and slightly distorting the ligament area, enlarge- 

 ment of the surface, and side view of the vertical sical wall. 

 All are enlarged X3 except figure 4 which is X5 

 Naples subprovince Whetstone gully near Livonia 



6 Another right valve. X2 



Naples subprovince Briggs gully, Honeoye lake 



Lunulicardium velatum sp. nov. 



Page 237 



7 A right valve somewhat restored, xi.5 



Naples subprovince Base of Hatch hill, Naples 



8 One of two valves in conjunction. Natural size 



Naples subprovince Parrish gully, Naples 



9 Enlargement of surface. X5 



Naples subprovince Base of Hatch hill, Naples 



Lunulicardium (Pinnopsis) libum sp. nov. 



[See pi. 4 1 

 Page 232 



10 A right valve showing the broad ribs and short, oblique sica 



Chautauqua subprovince Fox's point, Lake Erie 



Lunulicardium (Chaenocardiola) hemicardioides sp. nov. 



Page 2J5 



1 1 Sculpture cast of a right valve showing a scar which is prob- 



ably muscular. X2 



