bo 
9 
PLATE VIIL. 
Favosires TuRBINATA, Billings. A cylindrical variety. Nat. size. (p. 49.) 
FavosiTEs TURBINATA, Billings. A turbinate variety. Nat. size. 
FavosItes HEMISPHERICA, Yandell & Shumard. Nat. Size. (p. 49.) 
Favosires Forses!, Edw. & H. A fragment, in which many of the calices are 
closed by an epitheca. Nat. size. 
