along the edge than further down 
G . t am i > ae n sis - 30 - 
• The septal margins are rather 
regularly dentate f 6 or 7 teeth occurring on the longer septa, 
the innermost dentations nay he somewhat larger than the others 
and quite paliform in appearance. Septal faces granulate and 
synapticula are abundant, especially in the mural region where 
they are stout. 
Columella tangle well developed and is decidedly compact 
in appearance. 
Locality : Ballast Point, Hillsboro* Bay, near Tampa, Florida 
CJUu> ^ ( P~7^ {ATT , 
Geologic horizon: Upper Oligocene, Tampa Si&ex bed horizon 
Typ e ; A single specimen, United States national Museum. 
Remarks ; G. tampaenais differs from G ♦ c alhoun e ns i n by 
having deeper calices and a coarser texture 
