CONTEMPORARIES AND SUCCESSORS OF EOZOON. 163 



pores at the corners, and tliey are connected by hollow 

 pillars passing in a regular manner from the outer to 



to. 47. Diagram of Wall and Tubes of Receptaculites. {After 

 Billings.) 



.) Inner wall, (c.) Outer wall, (c?.) Section of plates, (e.) Pore of inner wall. 

 (/.) Canal of inner wall, {g.) Radial stolon, (h.) Cyclical stolon. (&.) 

 Suture of plates of outer wall. 



IG. 48. Beceptaculites, Inner Surface of Outer Wall with the 

 Stolons remaining on its Surface. {After Billings.) 



ie inner coat. They have been regarded by Salter as 

 Poraminifers, while Billings considers their nearest 



