OBISKANY FAUNA OF BECRAFT MOUNTAIN 



Megambonia crenistriata sp. nov. 



Page 35 

 Flo. 



15, 16 Two left valves, showing the outline, contour and ornament 



17 Enlargement of the surface. x5 



Cypricardinia indenta Hall 



Page 36 



18 A nearly complete right valve. x2 



19 Another valve, natural size 



20 Enlargement of a portion of the surface. x5 



Conocardium inceptum Hall (?) 



Page :ii 



21 A specimen, natural size 



22 Another shell enlarged, showing the character of the sur- 



face. x3 



23 The opposite valve from a larger specimen. x3 



