334 PETRIFACTIONS. 109. HeImimhoIitfh»$. 



3. The Mytilas Frons. 



^ear Cbriliioffiadt in Sntetfen, m Belghtfn, Normandy, MaUa, 

 Sec. in marble, faftd or Hint, 



4. The Mytilus in argarit' ferns, ♦ 



Helraintholithus Androdamas. Spf. ntti. xii. 5, /J. 165. 



Penna Pavonis, Muf. lejjin, 24, ». 2. 



Near Arifiorf in ^imtzgrlandt opake, but admitting a molt beau- 

 tifol polilh, and exhibiting the moft fplcndid iridefcent co- 

 lours according to its portion in the light* 



5. The MytiJas Unguis, 



Near Gojlar in the Harx, in clay. 



6^ The Mytilus lithophagu3. 

 Near Thalheim in Ifirtemburg^ 



7. The Mytllps rugofus. 



Near Varing in Auftriuy marmoreoQs* 



8. The Mytilus edulis. 



In P^edmonti Wirtemburg^ u^u^ria, Bohmiat Saxony^ &c. gene-, 

 rally fixed and calcareous, fomctimes ferruginous or in iand- 

 llone^ 



9. The Mytilns angnlatus. 



I Near Leipjic in Saxony, marmoreous. 



10. The Mytilus Modiolus. 



In various parts of Germany^ fixed and marmoreous. 



J I. The Mytilus cygneus. 



Near Thalheim in Wirtemhurg, large, 



12. The Mytilus anatinus. 



l^tir Thalheim in Wirtemhurg, marmorcoca, 



13. The Myrilus ruber. 



In SivitzerlanJ in ihift, and Saxony in fandftonc. 



^innitesm ThePinng^ 



In Piedmont, near Arifiorf in SnvitzerJand, in Fraftconia, and 

 near Pirnam and J)refden in Saxony. 



