PETRIFACTIONS. 109. Helmintholithus. 343 



20. The Madrepora mufiicalis. 



Lluid Lithoph. Brit, tab, 21;. Jig, 104. 



In En^lan^t France^ Bohemia, and the ^Netherlands* 



21, The Madrepora divergens. 

 In Egypt. 



lz. The Midrepora caefpitofa. 



In Derhyjhire, Sivitzerlandy Auftria and various parts o^Germany^ 

 in marble or flint. 



23. The Madrepora flexuofa. 

 In Derbyjhire^ 



-I 



24. The Madrepora fafcicularis. 



On an American ifland oppofite Caracao, 



25. The Madrepora pe£linata. 



In Sile/ia, and upper Burgandy* 



26. The Madrepora tubularis. 



zy. The Madrepora mamillaris. 

 In the Netherlands and Burgandj, 



28. The Madrepora patelloides, 



29. The Madrepora globularis. 



30. The Madrepora Filum. 

 Near Ba/il in Snvitzerland. 



31. The Madrepora vermicularis. 

 In Silejia and Sivitzerland, 



32. The Madrepora arachnoides. 



In the Netherlands, Wirtemberg, and upper Aufiri-a', 



33. The Madrepora undulata. 



34. The Madrepora Monile. 

 Near Djidda in Egypt, 



35. The Madrepora Porites. 



In Sijoeden, Silefia, and France, 



36. The M drepora damicornis. 

 In Carniola and Upper AuHria. 



37. The Madrepora muricati. 



In Gothland and Silefia, marmoreous. 



38. The M^d^epora fattigiata. 



In Silejia and upper Aujlria^ marmoreous. 



39 The Madrepora ramca. 



In the 2X^% oi Wirtemburgy filiccous or marmoreous. 



