I'KATK I.XIV— Coiitinuoil. 



l*>lJMONDIA SUBOVATA. 



i'ago 889. 

 Si'e Plak- 95. 

 Vig. 10. A l«fl valv«' (loul)lfully ii'fL'ri-od to this Ki^cies. 



Chciniiii^ jfi-oiip. PhUij}sbttrg/i, N. V. 

 Kijf. 18. A left valve preserving the cliaractfi-i.stic form. 



Cbeiniiiig gi-oup. Nobbieville, N. Y. 

 FijfB. 19, 30. Two rijfht valves. 



Chemuiijr (rroiip. Philipxhnryli, N. Y. 

 Fiff. -•• A nghl valve of inoi-e clciiffate form than usual, and j-eferred Wftt doubt to this species. 



Lower Chemung' (jroup. Ithaca, N. Y. 

 Fig. 26. A large right valve. 



Chemung gniup. Hobbieville, N. T. 

 Fig. 27. A right valve of medium size. 



Chemung givup. PhUipslmrgh, N. Y. 

 Fig. 28. A right valve of a large individual. 



Chemung group. PMUpsl>ur(/h, N. Y. 



Edmondia obliqua. 



Page 388. 

 See Plate 9.'). 

 Fig. 15. A left valve. 



Chemung group. UobMemlle, JV. Y. 

 Fig. 16. A right valve njferred with doubt to this species. 



Chemung group. PhUipshurgli, N. Y. , , 

 Fig. 23. A right valve of this species. 



Chemung groui). PhUipslmrgh, N. Y. 



EUMONDIA BURLINGTONENSIS. 

 Pago 390. 

 See Plate g.-i. 

 Fig. 22. A right valve. The beak and umbo are represented aa too much elevated. 

 Yellow sandstone. Burlingtim, loxca. 



EimONUIA TKANSVEK.SA. 

 Page 389. 

 Fig. 24. A left valve. 



Chemung group. Qittaraugus Co., N. Y. 



P^DMONDIA ELLIPSIS. 

 Page 395. 

 Fig. 25. A left valve. The beak is represented as too angular and elevated. 

 Burlington sandstone. Burlington, loVM. 



Gkammtsia undata. 



Page 379. 

 See Plates 61, 93. 

 Fig. 30. A left valve. ■, -f a,,m, 



Chemung grouj). J'ortvUle, JV. i.' 



Edmondia ? suBCAHrNATA. 



Fig. 31. The right valve of an imperfect specimen. 



Chemung group. Near Oleav, ^i Y. 



Edmondia depuessa. 



Page 391. 

 Fig. 32. A right valve. 



Waverly sandstone. Licking Co., Ohio. 



