OEISKANY FAUNA OF BECRAFT MOUNTAIN" H] 



Megambonia crenistriata sp. nov. 



Fia. 



Page So 



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

 li -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 :i7 



21 A specimen, natural size 



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



face. x3 



23 The opposite valve fi-om a larger specimen. x3 



