PETRIFACTIONS. 109. Hclmimholithus. 347 



7. The Alcyonium Ficus, 

 In the Netherlands* 



8. The Alcv'onium gelatinofum. 

 In the Wejtphalian circle of Germany, 



Spongte* The Spongia or fponge. 



1. The Spongia crateriformis ? 

 Near Paffraih in Sivitx,erland. 



2. The Spongia Tupha? 

 In Franconia. 



Escharite.r. The Fluftra. 



In the Netherlands, Franconia^ and Snuitzerland, of fandllone or 

 calcareous. 



1. Porous on both fides. 



a. The Fluftra foliacea. 



b. The Fluftra truncata. 

 Both in Heffe. 



c. The Fluftra pilofa. 



In the Netherlands and the Dutchy of Montana, 



d. The Fluftra lutofa. 



At Bajil in ^Switzerland, 



2. Porous on one fide only. 

 In Gothland, marmoreouSo 



■^ubulari^. The Tubularia. 



In Gothland and Sivitzerland, mariiioreous or arenarious, 

 I, The Tabularia indivifa, 



Corallime, The Corallina. 



In Bohemia and Venice, the impreffion. 



1. The Corallina corniculata. 



2. The Corallina barbata, 



Sertularia, The Sertularia. 



In France and the Netherlands, the impreffion, 



Pennatula. The Pei}natula or fea-pen. 



I, THe Pennatula phofphorea. 

 In the Netherlands and on mount "Baldo in Verona, the impreffion.' 



Xx 2 



